2 * mke2fs.c - Make a ext2fs filesystem.
4 * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
5 * 2003, 2004, 2005 by Theodore Ts'o.
8 * This file may be redistributed under the terms of the GNU Public
13 /* Usage: mke2fs [options] device
15 * The device may be a block device or a image of one, but this isn't
16 * enforced (but it's not much fun on a character device :-).
19 #define _XOPEN_SOURCE 600 /* for inclusion of PATH_MAX */
28 #include <sys/utsname.h>
29 #include <linux/version.h>
46 #include <sys/ioctl.h>
49 #include <blkid/blkid.h>
51 #include "ext2fs/ext2_fs.h"
52 #include "ext2fs/ext2fsP.h"
53 #include "uuid/uuid.h"
57 #include "../version.h"
58 #include "quota/quotaio.h"
60 #include "create_inode.h"
62 #define STRIDE_LENGTH 8
64 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
70 #define DISCARD_STEP_MB (2048)
72 extern int isatty(int);
73 extern FILE *fpopen(const char *cmd
, const char *mode
);
75 const char * program_name
= "mke2fs";
76 static const char * device_name
/* = NULL */;
78 /* Command line options */
82 static int super_only
;
83 static int discard
= 1; /* attempt to discard device before fs creation */
87 static int num_backups
= 2; /* number of backup bg's for sparse_super2 */
88 static uid_t root_uid
;
89 static gid_t root_gid
;
92 static int lazy_itable_init
;
93 static int packed_meta_blocks
;
94 static char *bad_blocks_filename
= NULL
;
95 static __u32 fs_stride
;
96 static int quotatype
= -1; /* Initialize both user and group quotas by default */
98 static blk64_t journal_location
= ~0LL;
99 static int proceed_delay
= -1;
100 static blk64_t dev_size
;
102 static struct ext2_super_block fs_param
;
103 static char *fs_uuid
= NULL
;
104 static char *creator_os
;
105 static char *volume_label
;
106 static char *mount_dir
;
107 char *journal_device
;
108 static int sync_kludge
; /* Set using the MKE2FS_SYNC env. option */
110 const char *root_dir
; /* Copy files from the specified directory */
112 static profile_t profile
;
114 static int sys_page_size
= 4096;
116 static int errors_behavior
= 0;
118 static void usage(void)
120 fprintf(stderr
, _("Usage: %s [-c|-l filename] [-b block-size] "
121 "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
122 "[-J journal-options]\n"
123 "\t[-G flex-group-size] [-N number-of-inodes] "
124 "[-d root-directory]\n"
125 "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
126 "\t[-g blocks-per-group] [-L volume-label] "
127 "[-M last-mounted-directory]\n\t[-O feature[,...]] "
128 "[-r fs-revision] [-E extended-option[,...]]\n"
129 "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
130 "[-jnqvDFKSV] device [blocks-count]\n"),
135 static int int_log2(unsigned long long arg
)
147 int int_log10(unsigned long long arg
)
157 static int parse_version_number(const char *s
)
159 int major
, minor
, rev
;
165 major
= strtol(cp
, &endptr
, 10);
166 if (cp
== endptr
|| *endptr
!= '.')
169 minor
= strtol(cp
, &endptr
, 10);
170 if (cp
== endptr
|| *endptr
!= '.')
173 rev
= strtol(cp
, &endptr
, 10);
176 return KERNEL_VERSION(major
, minor
, rev
);
179 static int is_before_linux_ver(unsigned int major
, unsigned int minor
,
183 static int linux_version_code
= -1;
189 if (linux_version_code
< 0)
190 linux_version_code
= parse_version_number(ut
.release
);
191 if (linux_version_code
== 0)
194 return linux_version_code
< KERNEL_VERSION(major
, minor
, rev
);
197 static int is_before_linux_ver(unsigned int major
, unsigned int minor
,
205 * Helper function for read_bb_file and test_disk
207 static void invalid_block(ext2_filsys fs
EXT2FS_ATTR((unused
)), blk_t blk
)
209 fprintf(stderr
, _("Bad block %u out of range; ignored.\n"), blk
);
214 * Reads the bad blocks list from a file
216 static void read_bb_file(ext2_filsys fs
, badblocks_list
*bb_list
,
217 const char *bad_blocks_file
)
222 f
= fopen(bad_blocks_file
, "r");
224 com_err("read_bad_blocks_file", errno
,
225 _("while trying to open %s"), bad_blocks_file
);
228 retval
= ext2fs_read_bb_FILE(fs
, f
, bb_list
, invalid_block
);
231 com_err("ext2fs_read_bb_FILE", retval
, "%s",
232 _("while reading in list of bad blocks from file"));
238 * Runs the badblocks program to test the disk
240 static void test_disk(ext2_filsys fs
, badblocks_list
*bb_list
)
246 sprintf(buf
, "badblocks -b %d -X %s%s%s %llu", fs
->blocksize
,
247 quiet
? "" : "-s ", (cflag
> 1) ? "-w " : "",
248 fs
->device_name
, ext2fs_blocks_count(fs
->super
)-1);
250 printf(_("Running command: %s\n"), buf
);
253 com_err("popen", errno
,
254 _("while trying to run '%s'"), buf
);
257 retval
= ext2fs_read_bb_FILE(fs
, f
, bb_list
, invalid_block
);
260 com_err("ext2fs_read_bb_FILE", retval
, "%s",
261 _("while processing list of bad blocks from program"));
266 static void handle_bad_blocks(ext2_filsys fs
, badblocks_list bb_list
)
270 unsigned must_be_good
;
272 badblocks_iterate bb_iter
;
282 * The primary superblock and group descriptors *must* be
283 * good; if not, abort.
285 must_be_good
= fs
->super
->s_first_data_block
+ 1 + fs
->desc_blocks
;
286 for (i
= fs
->super
->s_first_data_block
; i
<= must_be_good
; i
++) {
287 if (ext2fs_badblocks_list_test(bb_list
, i
)) {
288 fprintf(stderr
, _("Block %d in primary "
289 "superblock/group descriptor area bad.\n"), i
);
290 fprintf(stderr
, _("Blocks %u through %u must be good "
291 "in order to build a filesystem.\n"),
292 fs
->super
->s_first_data_block
, must_be_good
);
293 fputs(_("Aborting....\n"), stderr
);
299 * See if any of the bad blocks are showing up in the backup
300 * superblocks and/or group descriptors. If so, issue a
301 * warning and adjust the block counts appropriately.
303 group_block
= fs
->super
->s_first_data_block
+
304 fs
->super
->s_blocks_per_group
;
306 for (i
= 1; i
< fs
->group_desc_count
; i
++) {
308 for (j
=0; j
< fs
->desc_blocks
+1; j
++) {
309 if (ext2fs_badblocks_list_test(bb_list
,
313 _("Warning: the backup superblock/group descriptors at block %u contain\n"
317 group
= ext2fs_group_of_blk2(fs
, group_block
+j
);
318 ext2fs_bg_free_blocks_count_set(fs
, group
, ext2fs_bg_free_blocks_count(fs
, group
) + 1);
319 ext2fs_group_desc_csum_set(fs
, group
);
320 ext2fs_free_blocks_count_add(fs
->super
, 1);
323 group_block
+= fs
->super
->s_blocks_per_group
;
327 * Mark all the bad blocks as used...
329 retval
= ext2fs_badblocks_list_iterate_begin(bb_list
, &bb_iter
);
331 com_err("ext2fs_badblocks_list_iterate_begin", retval
, "%s",
332 _("while marking bad blocks as used"));
335 while (ext2fs_badblocks_list_iterate(bb_iter
, &blk
))
336 ext2fs_mark_block_bitmap2(fs
->block_map
, EXT2FS_B2C(fs
, blk
));
337 ext2fs_badblocks_list_iterate_end(bb_iter
);
340 static void write_reserved_inodes(ext2_filsys fs
)
344 struct ext2_inode
*inode
;
346 retval
= ext2fs_get_memzero(EXT2_INODE_SIZE(fs
->super
), &inode
);
348 com_err("inode_init", retval
, _("while allocating memory"));
352 for (ino
= 1; ino
< EXT2_FIRST_INO(fs
->super
); ino
++)
353 ext2fs_write_inode_full(fs
, ino
, inode
,
354 EXT2_INODE_SIZE(fs
->super
));
356 ext2fs_free_mem(&inode
);
359 static errcode_t
packed_allocate_tables(ext2_filsys fs
)
365 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
366 retval
= ext2fs_new_block2(fs
, goal
, NULL
, &goal
);
369 ext2fs_block_alloc_stats2(fs
, goal
, +1);
370 ext2fs_block_bitmap_loc_set(fs
, i
, goal
);
372 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
373 retval
= ext2fs_new_block2(fs
, goal
, NULL
, &goal
);
376 ext2fs_block_alloc_stats2(fs
, goal
, +1);
377 ext2fs_inode_bitmap_loc_set(fs
, i
, goal
);
379 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
380 blk64_t end
= ext2fs_blocks_count(fs
->super
) - 1;
381 retval
= ext2fs_get_free_blocks2(fs
, goal
, end
,
382 fs
->inode_blocks_per_group
,
383 fs
->block_map
, &goal
);
386 ext2fs_block_alloc_stats_range(fs
, goal
,
387 fs
->inode_blocks_per_group
, +1);
388 ext2fs_inode_table_loc_set(fs
, i
, goal
);
389 ext2fs_group_desc_csum_set(fs
, i
);
394 static void write_inode_tables(ext2_filsys fs
, int lazy_flag
, int itable_zeroed
)
400 struct ext2fs_numeric_progress_struct progress
;
402 ext2fs_numeric_progress_init(fs
, &progress
,
403 _("Writing inode tables: "),
404 fs
->group_desc_count
);
406 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
407 ext2fs_numeric_progress_update(fs
, &progress
, i
);
409 blk
= ext2fs_inode_table_loc(fs
, i
);
410 num
= fs
->inode_blocks_per_group
;
413 num
= ext2fs_div_ceil((fs
->super
->s_inodes_per_group
-
414 ext2fs_bg_itable_unused(fs
, i
)) *
415 EXT2_INODE_SIZE(fs
->super
),
416 EXT2_BLOCK_SIZE(fs
->super
));
417 if (!lazy_flag
|| itable_zeroed
) {
418 /* The kernel doesn't need to zero the itable blocks */
419 ext2fs_bg_flags_set(fs
, i
, EXT2_BG_INODE_ZEROED
);
420 ext2fs_group_desc_csum_set(fs
, i
);
422 retval
= ext2fs_zero_blocks2(fs
, blk
, num
, &blk
, &num
);
424 fprintf(stderr
, _("\nCould not write %d "
425 "blocks in inode table starting at %llu: %s\n"),
426 num
, blk
, error_message(retval
));
430 if (sync_kludge
== 1)
432 else if ((i
% sync_kludge
) == 0)
436 ext2fs_zero_blocks2(0, 0, 0, 0, 0);
437 ext2fs_numeric_progress_close(fs
, &progress
,
440 /* Reserved inodes must always have correct checksums */
441 if (fs
->super
->s_creator_os
== EXT2_OS_LINUX
&&
442 fs
->super
->s_feature_ro_compat
&
443 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
)
444 write_reserved_inodes(fs
);
447 static void create_root_dir(ext2_filsys fs
)
450 struct ext2_inode inode
;
452 retval
= ext2fs_mkdir(fs
, EXT2_ROOT_INO
, EXT2_ROOT_INO
, 0);
454 com_err("ext2fs_mkdir", retval
, "%s",
455 _("while creating root dir"));
458 if (root_uid
!= 0 || root_gid
!= 0) {
459 retval
= ext2fs_read_inode(fs
, EXT2_ROOT_INO
, &inode
);
461 com_err("ext2fs_read_inode", retval
, "%s",
462 _("while reading root inode"));
466 inode
.i_uid
= root_uid
;
467 ext2fs_set_i_uid_high(inode
, root_uid
>> 16);
468 inode
.i_gid
= root_gid
;
469 ext2fs_set_i_gid_high(inode
, root_gid
>> 16);
471 retval
= ext2fs_write_new_inode(fs
, EXT2_ROOT_INO
, &inode
);
473 com_err("ext2fs_write_inode", retval
, "%s",
474 _("while setting root inode ownership"));
480 static void create_lost_and_found(ext2_filsys fs
)
482 unsigned int lpf_size
= 0;
485 const char *name
= "lost+found";
489 retval
= ext2fs_mkdir(fs
, EXT2_ROOT_INO
, 0, name
);
491 com_err("ext2fs_mkdir", retval
, "%s",
492 _("while creating /lost+found"));
496 retval
= ext2fs_lookup(fs
, EXT2_ROOT_INO
, name
, strlen(name
), 0, &ino
);
498 com_err("ext2_lookup", retval
, "%s",
499 _("while looking up /lost+found"));
503 for (i
=1; i
< EXT2_NDIR_BLOCKS
; i
++) {
504 /* Ensure that lost+found is at least 2 blocks, so we always
505 * test large empty blocks for big-block filesystems. */
506 if ((lpf_size
+= fs
->blocksize
) >= 16*1024 &&
507 lpf_size
>= 2 * fs
->blocksize
)
509 retval
= ext2fs_expand_dir(fs
, ino
);
511 com_err("ext2fs_expand_dir", retval
, "%s",
512 _("while expanding /lost+found"));
518 static void create_bad_block_inode(ext2_filsys fs
, badblocks_list bb_list
)
522 ext2fs_mark_inode_bitmap2(fs
->inode_map
, EXT2_BAD_INO
);
523 ext2fs_inode_alloc_stats2(fs
, EXT2_BAD_INO
, +1, 0);
524 retval
= ext2fs_update_bb_inode(fs
, bb_list
);
526 com_err("ext2fs_update_bb_inode", retval
, "%s",
527 _("while setting bad block inode"));
533 static void reserve_inodes(ext2_filsys fs
)
537 for (i
= EXT2_ROOT_INO
+ 1; i
< EXT2_FIRST_INODE(fs
->super
); i
++)
538 ext2fs_inode_alloc_stats2(fs
, i
, +1, 0);
539 ext2fs_mark_ib_dirty(fs
);
542 #define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */
543 #define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */
544 #define BSD_LABEL_OFFSET 64
546 static void zap_sector(ext2_filsys fs
, int sect
, int nsect
)
552 buf
= malloc(512*nsect
);
554 printf(_("Out of memory erasing sectors %d-%d\n"),
555 sect
, sect
+ nsect
- 1);
560 /* Check for a BSD disklabel, and don't erase it if so */
561 retval
= io_channel_read_blk64(fs
->io
, 0, -512, buf
);
564 _("Warning: could not read block 0: %s\n"),
565 error_message(retval
));
567 magic
= (unsigned int *) (buf
+ BSD_LABEL_OFFSET
);
568 if ((*magic
== BSD_DISKMAGIC
) ||
569 (*magic
== BSD_MAGICDISK
))
574 memset(buf
, 0, 512*nsect
);
575 io_channel_set_blksize(fs
->io
, 512);
576 retval
= io_channel_write_blk64(fs
->io
, sect
, -512*nsect
, buf
);
577 io_channel_set_blksize(fs
->io
, fs
->blocksize
);
580 fprintf(stderr
, _("Warning: could not erase sector %d: %s\n"),
581 sect
, error_message(retval
));
584 static void create_journal_dev(ext2_filsys fs
)
586 struct ext2fs_numeric_progress_struct progress
;
589 blk64_t blk
, err_blk
;
590 int c
, count
, err_count
;
592 retval
= ext2fs_create_journal_superblock(fs
,
593 ext2fs_blocks_count(fs
->super
), 0, &buf
);
595 com_err("create_journal_dev", retval
, "%s",
596 _("while initializing journal superblock"));
600 if (journal_flags
& EXT2_MKJOURNAL_LAZYINIT
)
601 goto write_superblock
;
603 ext2fs_numeric_progress_init(fs
, &progress
,
604 _("Zeroing journal device: "),
605 ext2fs_blocks_count(fs
->super
));
607 count
= ext2fs_blocks_count(fs
->super
);
613 retval
= ext2fs_zero_blocks2(fs
, blk
, c
, &err_blk
, &err_count
);
615 com_err("create_journal_dev", retval
,
616 _("while zeroing journal device "
617 "(block %llu, count %d)"),
623 ext2fs_numeric_progress_update(fs
, &progress
, blk
);
625 ext2fs_zero_blocks2(0, 0, 0, 0, 0);
627 ext2fs_numeric_progress_close(fs
, &progress
, NULL
);
629 retval
= io_channel_write_blk64(fs
->io
,
630 fs
->super
->s_first_data_block
+1,
633 com_err("create_journal_dev", retval
, "%s",
634 _("while writing journal superblock"));
639 static void show_stats(ext2_filsys fs
)
641 struct ext2_super_block
*s
= fs
->super
;
649 printf(_("Creating filesystem with %llu %dk blocks and "
651 ext2fs_blocks_count(s
), fs
->blocksize
>> 10,
656 if (ext2fs_blocks_count(&fs_param
) != ext2fs_blocks_count(s
))
657 fprintf(stderr
, _("warning: %llu blocks unused.\n\n"),
658 ext2fs_blocks_count(&fs_param
) - ext2fs_blocks_count(s
));
660 memset(buf
, 0, sizeof(buf
));
661 strncpy(buf
, s
->s_volume_name
, sizeof(s
->s_volume_name
));
662 printf(_("Filesystem label=%s\n"), buf
);
663 os
= e2p_os2string(fs
->super
->s_creator_os
);
665 printf(_("OS type: %s\n"), os
);
667 printf(_("Block size=%u (log=%u)\n"), fs
->blocksize
,
668 s
->s_log_block_size
);
669 if (EXT2_HAS_RO_COMPAT_FEATURE(fs
->super
,
670 EXT4_FEATURE_RO_COMPAT_BIGALLOC
))
671 printf(_("Cluster size=%u (log=%u)\n"),
672 fs
->blocksize
<< fs
->cluster_ratio_bits
,
673 s
->s_log_cluster_size
);
675 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s
),
676 s
->s_log_cluster_size
);
677 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
678 s
->s_raid_stride
, s
->s_raid_stripe_width
);
679 printf(_("%u inodes, %llu blocks\n"), s
->s_inodes_count
,
680 ext2fs_blocks_count(s
));
681 printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
682 ext2fs_r_blocks_count(s
),
683 100.0 * ext2fs_r_blocks_count(s
) / ext2fs_blocks_count(s
));
684 printf(_("First data block=%u\n"), s
->s_first_data_block
);
685 if (root_uid
!= 0 || root_gid
!= 0)
686 printf(_("Root directory owner=%u:%u\n"), root_uid
, root_gid
);
687 if (s
->s_reserved_gdt_blocks
)
688 printf(_("Maximum filesystem blocks=%lu\n"),
689 (s
->s_reserved_gdt_blocks
+ fs
->desc_blocks
) *
690 EXT2_DESC_PER_BLOCK(s
) * s
->s_blocks_per_group
);
691 if (fs
->group_desc_count
> 1)
692 printf(_("%u block groups\n"), fs
->group_desc_count
);
694 printf(_("%u block group\n"), fs
->group_desc_count
);
695 if (EXT2_HAS_RO_COMPAT_FEATURE(fs
->super
,
696 EXT4_FEATURE_RO_COMPAT_BIGALLOC
))
697 printf(_("%u blocks per group, %u clusters per group\n"),
698 s
->s_blocks_per_group
, s
->s_clusters_per_group
);
700 printf(_("%u blocks per group, %u fragments per group\n"),
701 s
->s_blocks_per_group
, s
->s_clusters_per_group
);
702 printf(_("%u inodes per group\n"), s
->s_inodes_per_group
);
705 if (fs
->group_desc_count
== 1) {
710 if (!e2p_is_null_uuid(s
->s_uuid
))
711 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s
->s_uuid
));
712 printf("%s", _("Superblock backups stored on blocks: "));
713 group_block
= s
->s_first_data_block
;
715 for (i
= 1; i
< fs
->group_desc_count
; i
++) {
716 group_block
+= s
->s_blocks_per_group
;
717 if (!ext2fs_bg_has_super(fs
, i
))
721 need
= int_log10(group_block
) + 2;
722 if (need
> col_left
) {
727 printf("%llu", group_block
);
733 * Returns true if making a file system for the Hurd, else 0
735 static int for_hurd(const char *os
)
745 return (atoi(os
) == EXT2_OS_HURD
);
746 return (strcasecmp(os
, "GNU") == 0 || strcasecmp(os
, "hurd") == 0);
750 * Set the S_CREATOR_OS field. Return true if OS is known,
753 static int set_os(struct ext2_super_block
*sb
, char *os
)
756 sb
->s_creator_os
= atoi (os
);
757 else if (strcasecmp(os
, "linux") == 0)
758 sb
->s_creator_os
= EXT2_OS_LINUX
;
759 else if (strcasecmp(os
, "GNU") == 0 || strcasecmp(os
, "hurd") == 0)
760 sb
->s_creator_os
= EXT2_OS_HURD
;
761 else if (strcasecmp(os
, "freebsd") == 0)
762 sb
->s_creator_os
= EXT2_OS_FREEBSD
;
763 else if (strcasecmp(os
, "lites") == 0)
764 sb
->s_creator_os
= EXT2_OS_LITES
;
770 #define PATH_SET "PATH=/sbin"
772 static void parse_extended_opts(struct ext2_super_block
*param
,
775 char *buf
, *token
, *next
, *p
, *arg
, *badopt
= 0;
782 fprintf(stderr
, "%s",
783 _("Couldn't allocate memory to parse options!\n"));
787 for (token
= buf
; token
&& *token
; token
= next
) {
788 p
= strchr(token
, ',');
794 arg
= strchr(token
, '=');
799 if (strcmp(token
, "desc-size") == 0 ||
800 strcmp(token
, "desc_size") == 0) {
803 if (!(fs_param
.s_feature_incompat
&
804 EXT4_FEATURE_INCOMPAT_64BIT
)) {
806 _("%s requires '-O 64bit'\n"), token
);
810 if (param
->s_reserved_gdt_blocks
!= 0) {
812 _("'%s' must be before 'resize=%u'\n"),
813 token
, param
->s_reserved_gdt_blocks
);
822 desc_size
= strtoul(arg
, &p
, 0);
823 if (*p
|| (desc_size
& (desc_size
- 1))) {
825 _("Invalid desc_size: '%s'\n"), arg
);
829 param
->s_desc_size
= desc_size
;
830 } else if (strcmp(token
, "offset") == 0) {
836 offset
= strtoull(arg
, &p
, 0);
838 fprintf(stderr
, _("Invalid offset: %s\n"),
843 } else if (strcmp(token
, "mmp_update_interval") == 0) {
849 param
->s_mmp_update_interval
= strtoul(arg
, &p
, 0);
852 _("Invalid mmp_update_interval: %s\n"),
857 } else if (strcmp(token
, "num_backup_sb") == 0) {
863 num_backups
= strtoul(arg
, &p
, 0);
864 if (*p
|| num_backups
> 2) {
866 _("Invalid # of backup "
867 "superblocks: %s\n"),
872 } else if (strcmp(token
, "packed_meta_blocks") == 0) {
874 packed_meta_blocks
= strtoul(arg
, &p
, 0);
876 packed_meta_blocks
= 1;
877 if (packed_meta_blocks
)
878 journal_location
= 0;
879 } else if (strcmp(token
, "stride") == 0) {
885 param
->s_raid_stride
= strtoul(arg
, &p
, 0);
888 _("Invalid stride parameter: %s\n"),
893 } else if (strcmp(token
, "stripe-width") == 0 ||
894 strcmp(token
, "stripe_width") == 0) {
900 param
->s_raid_stripe_width
= strtoul(arg
, &p
, 0);
903 _("Invalid stripe-width parameter: %s\n"),
908 } else if (!strcmp(token
, "resize")) {
910 unsigned long bpg
, rsv_groups
;
911 unsigned long group_desc_count
, desc_blocks
;
912 unsigned int gdpb
, blocksize
;
921 resize
= parse_num_blocks2(arg
,
922 param
->s_log_block_size
);
926 _("Invalid resize parameter: %s\n"),
931 if (resize
<= ext2fs_blocks_count(param
)) {
932 fprintf(stderr
, "%s",
933 _("The resize maximum must be greater "
934 "than the filesystem size.\n"));
939 blocksize
= EXT2_BLOCK_SIZE(param
);
940 bpg
= param
->s_blocks_per_group
;
943 gdpb
= EXT2_DESC_PER_BLOCK(param
);
944 group_desc_count
= (__u32
) ext2fs_div64_ceil(
945 ext2fs_blocks_count(param
), bpg
);
946 desc_blocks
= (group_desc_count
+
948 rsv_groups
= ext2fs_div64_ceil(resize
, bpg
);
949 rsv_gdb
= ext2fs_div_ceil(rsv_groups
, gdpb
) -
951 if (rsv_gdb
> (int) EXT2_ADDR_PER_BLOCK(param
))
952 rsv_gdb
= EXT2_ADDR_PER_BLOCK(param
);
955 if (param
->s_rev_level
== EXT2_GOOD_OLD_REV
) {
956 fprintf(stderr
, "%s",
957 _("On-line resizing not supported with revision 0 filesystems\n"));
961 param
->s_feature_compat
|=
962 EXT2_FEATURE_COMPAT_RESIZE_INODE
;
964 param
->s_reserved_gdt_blocks
= rsv_gdb
;
966 } else if (!strcmp(token
, "test_fs")) {
967 param
->s_flags
|= EXT2_FLAGS_TEST_FILESYS
;
968 } else if (!strcmp(token
, "lazy_itable_init")) {
970 lazy_itable_init
= strtoul(arg
, &p
, 0);
972 lazy_itable_init
= 1;
973 } else if (!strcmp(token
, "lazy_journal_init")) {
975 journal_flags
|= strtoul(arg
, &p
, 0) ?
976 EXT2_MKJOURNAL_LAZYINIT
: 0;
978 journal_flags
|= EXT2_MKJOURNAL_LAZYINIT
;
979 } else if (!strcmp(token
, "root_owner")) {
981 root_uid
= strtoul(arg
, &p
, 0);
984 _("Invalid root_owner: '%s'\n"),
990 root_gid
= strtoul(p
, &p
, 0);
993 _("Invalid root_owner: '%s'\n"),
1000 root_gid
= getgid();
1002 } else if (!strcmp(token
, "discard")) {
1004 } else if (!strcmp(token
, "nodiscard")) {
1006 } else if (!strcmp(token
, "quotatype")) {
1012 if (!strncmp(arg
, "usr", 3)) {
1014 } else if (!strncmp(arg
, "grp", 3)) {
1018 _("Invalid quotatype parameter: %s\n"),
1029 fprintf(stderr
, _("\nBad option(s) specified: %s\n\n"
1030 "Extended options are separated by commas, "
1031 "and may take an argument which\n"
1032 "\tis set off by an equals ('=') sign.\n\n"
1033 "Valid extended options are:\n"
1034 "\tmmp_update_interval=<interval>\n"
1035 "\tnum_backup_sb=<0|1|2>\n"
1036 "\tstride=<RAID per-disk data chunk in blocks>\n"
1037 "\tstripe-width=<RAID stride * data disks in blocks>\n"
1038 "\toffset=<offset to create the file system>\n"
1039 "\tresize=<resize maximum size in blocks>\n"
1040 "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1041 "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1042 "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1043 "\troot_uid=<uid of root directory>\n"
1044 "\troot_gid=<gid of root directory>\n"
1048 "\tquotatype=<usr OR grp>\n\n"),
1049 badopt
? badopt
: "");
1053 if (param
->s_raid_stride
&&
1054 (param
->s_raid_stripe_width
% param
->s_raid_stride
) != 0)
1055 fprintf(stderr
, _("\nWarning: RAID stripe-width %u not an even "
1056 "multiple of stride %u.\n\n"),
1057 param
->s_raid_stripe_width
, param
->s_raid_stride
);
1062 static __u32 ok_features
[3] = {
1064 EXT3_FEATURE_COMPAT_HAS_JOURNAL
|
1065 EXT2_FEATURE_COMPAT_RESIZE_INODE
|
1066 EXT2_FEATURE_COMPAT_DIR_INDEX
|
1067 EXT2_FEATURE_COMPAT_EXT_ATTR
|
1068 EXT4_FEATURE_COMPAT_SPARSE_SUPER2
,
1070 EXT2_FEATURE_INCOMPAT_FILETYPE
|
1071 EXT3_FEATURE_INCOMPAT_EXTENTS
|
1072 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
|
1073 EXT2_FEATURE_INCOMPAT_META_BG
|
1074 EXT4_FEATURE_INCOMPAT_FLEX_BG
|
1075 EXT4_FEATURE_INCOMPAT_MMP
|
1076 EXT4_FEATURE_INCOMPAT_64BIT
|
1077 EXT4_FEATURE_INCOMPAT_INLINE_DATA
,
1079 EXT2_FEATURE_RO_COMPAT_LARGE_FILE
|
1080 EXT4_FEATURE_RO_COMPAT_HUGE_FILE
|
1081 EXT4_FEATURE_RO_COMPAT_DIR_NLINK
|
1082 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE
|
1083 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
|
1084 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
|
1085 EXT4_FEATURE_RO_COMPAT_BIGALLOC
|
1087 EXT4_FEATURE_RO_COMPAT_QUOTA
|
1089 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
1093 static void syntax_err_report(const char *filename
, long err
, int line_num
)
1096 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1097 filename
, line_num
, error_message(err
));
1101 static const char *config_fn
[] = { ROOT_SYSCONFDIR
"/mke2fs.conf", 0 };
1103 static void edit_feature(const char *str
, __u32
*compat_array
)
1108 if (e2p_edit_feature(str
, compat_array
, ok_features
)) {
1109 fprintf(stderr
, _("Invalid filesystem option set: %s\n"),
1115 static void edit_mntopts(const char *str
, __u32
*mntopts
)
1120 if (e2p_edit_mntopts(str
, mntopts
, ~0)) {
1121 fprintf(stderr
, _("Invalid mount option set: %s\n"),
1133 static errcode_t
init_list(struct str_list
*sl
)
1137 sl
->list
= malloc((sl
->max
+1) * sizeof(char *));
1144 static errcode_t
push_string(struct str_list
*sl
, const char *str
)
1148 if (sl
->num
>= sl
->max
) {
1150 new_list
= realloc(sl
->list
, (sl
->max
+1) * sizeof(char *));
1153 sl
->list
= new_list
;
1155 sl
->list
[sl
->num
] = malloc(strlen(str
)+1);
1156 if (sl
->list
[sl
->num
] == 0)
1158 strcpy(sl
->list
[sl
->num
], str
);
1160 sl
->list
[sl
->num
] = 0;
1164 static void print_str_list(char **list
)
1168 for (cpp
= list
; *cpp
; cpp
++) {
1169 printf("'%s'", *cpp
);
1171 fputs(", ", stdout
);
1173 fputc('\n', stdout
);
1177 * Return TRUE if the profile has the given subsection
1179 static int profile_has_subsection(profile_t prof
, const char *section
,
1180 const char *subsection
)
1183 const char *names
[4];
1188 names
[1] = subsection
;
1191 if (profile_iterator_create(prof
, names
,
1192 PROFILE_ITER_LIST_SECTION
|
1193 PROFILE_ITER_RELATIONS_ONLY
, &state
))
1196 if ((profile_iterator(&state
, &name
, 0) == 0) && name
) {
1201 profile_iterator_free(&state
);
1205 static char **parse_fs_type(const char *fs_type
,
1206 const char *usage_types
,
1207 struct ext2_super_block
*sb
,
1208 blk64_t fs_blocks_count
,
1211 const char *ext_type
= 0;
1213 char *profile_type
= 0;
1215 const char *size_type
;
1216 struct str_list list
;
1217 unsigned long long meg
;
1218 int is_hurd
= for_hurd(creator_os
);
1220 if (init_list(&list
))
1227 else if (!strcmp(program_name
, "mke3fs"))
1229 else if (!strcmp(program_name
, "mke4fs"))
1231 else if (progname
) {
1232 ext_type
= strrchr(progname
, '/');
1236 ext_type
= progname
;
1238 if (!strncmp(ext_type
, "mkfs.", 5)) {
1240 if (ext_type
[0] == 0)
1247 profile_get_string(profile
, "defaults", "fs_type", 0,
1248 "ext2", &profile_type
);
1249 ext_type
= profile_type
;
1250 if (!strcmp(ext_type
, "ext2") && (journal_size
!= 0))
1255 if (!profile_has_subsection(profile
, "fs_types", ext_type
) &&
1256 strcmp(ext_type
, "ext2")) {
1257 printf(_("\nYour mke2fs.conf file does not define the "
1258 "%s filesystem type.\n"), ext_type
);
1259 if (!strcmp(ext_type
, "ext3") || !strcmp(ext_type
, "ext4") ||
1260 !strcmp(ext_type
, "ext4dev")) {
1261 printf("%s", _("You probably need to install an "
1262 "updated mke2fs.conf file.\n\n"));
1265 printf("%s", _("Aborting...\n"));
1270 meg
= (1024 * 1024) / EXT2_BLOCK_SIZE(sb
);
1271 if (fs_blocks_count
< 3 * meg
)
1272 size_type
= "floppy";
1273 else if (fs_blocks_count
< 512 * meg
)
1274 size_type
= "small";
1275 else if (fs_blocks_count
< 4 * 1024 * 1024 * meg
)
1276 size_type
= "default";
1277 else if (fs_blocks_count
< 16 * 1024 * 1024 * meg
)
1283 usage_types
= size_type
;
1285 parse_str
= malloc(strlen(usage_types
)+1);
1291 strcpy(parse_str
, usage_types
);
1294 push_string(&list
, ext_type
);
1297 t
= strchr(cp
, ',');
1302 if (profile_has_subsection(profile
, "fs_types", cp
))
1303 push_string(&list
, cp
);
1304 else if (strcmp(cp
, "default") != 0)
1306 _("\nWarning: the fs_type %s is not "
1307 "defined in mke2fs.conf\n\n"),
1318 push_string(&list
, "hurd");
1322 char *get_string_from_profile(char **types
, const char *opt
,
1323 const char *def_val
)
1328 for (i
=0; types
[i
]; i
++);
1329 for (i
-=1; i
>=0 ; i
--) {
1330 profile_get_string(profile
, "fs_types", types
[i
],
1335 profile_get_string(profile
, "defaults", opt
, 0, def_val
, &ret
);
1339 int get_int_from_profile(char **types
, const char *opt
, int def_val
)
1344 profile_get_integer(profile
, "defaults", opt
, 0, def_val
, &ret
);
1345 for (cpp
= types
; *cpp
; cpp
++)
1346 profile_get_integer(profile
, "fs_types", *cpp
, opt
, ret
, &ret
);
1350 static unsigned int get_uint_from_profile(char **types
, const char *opt
,
1351 unsigned int def_val
)
1356 profile_get_uint(profile
, "defaults", opt
, 0, def_val
, &ret
);
1357 for (cpp
= types
; *cpp
; cpp
++)
1358 profile_get_uint(profile
, "fs_types", *cpp
, opt
, ret
, &ret
);
1362 static double get_double_from_profile(char **types
, const char *opt
,
1368 profile_get_double(profile
, "defaults", opt
, 0, def_val
, &ret
);
1369 for (cpp
= types
; *cpp
; cpp
++)
1370 profile_get_double(profile
, "fs_types", *cpp
, opt
, ret
, &ret
);
1374 int get_bool_from_profile(char **types
, const char *opt
, int def_val
)
1379 profile_get_boolean(profile
, "defaults", opt
, 0, def_val
, &ret
);
1380 for (cpp
= types
; *cpp
; cpp
++)
1381 profile_get_boolean(profile
, "fs_types", *cpp
, opt
, ret
, &ret
);
1385 extern const char *mke2fs_default_profile
;
1386 static const char *default_files
[] = { "<default>", 0 };
1388 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1390 * Sets the geometry of a device (stripe/stride), and returns the
1391 * device's alignment offset, if any, or a negative error.
1393 static int get_device_geometry(const char *file
,
1394 struct ext2_super_block
*fs_param
,
1401 unsigned long min_io
;
1402 unsigned long opt_io
;
1403 struct stat statbuf
;
1405 /* Nothing to do for a regular file */
1406 if (!stat(file
, &statbuf
) && S_ISREG(statbuf
.st_mode
))
1409 pr
= blkid_new_probe_from_filename(file
);
1413 tp
= blkid_probe_get_topology(pr
);
1417 min_io
= blkid_topology_get_minimum_io_size(tp
);
1418 opt_io
= blkid_topology_get_optimal_io_size(tp
);
1419 blocksize
= EXT2_BLOCK_SIZE(fs_param
);
1420 if ((min_io
== 0) && (psector_size
> blocksize
))
1421 min_io
= psector_size
;
1422 if ((opt_io
== 0) && min_io
)
1424 if ((opt_io
== 0) && (psector_size
> blocksize
))
1425 opt_io
= psector_size
;
1427 /* setting stripe/stride to blocksize is pointless */
1428 if (min_io
> blocksize
)
1429 fs_param
->s_raid_stride
= min_io
/ blocksize
;
1430 if (opt_io
> blocksize
)
1431 fs_param
->s_raid_stripe_width
= opt_io
/ blocksize
;
1433 rc
= blkid_topology_get_alignment_offset(tp
);
1435 blkid_free_probe(pr
);
1440 static void PRS(int argc
, char *argv
[])
1443 int cluster_size
= 0;
1446 int inode_ratio
= 0;
1448 unsigned long flex_bg_size
= 0;
1449 double reserved_ratio
= -1.0;
1450 int lsector_size
= 0, psector_size
= 0;
1451 int show_version_only
= 0, is_device
= 0;
1452 unsigned long long num_inodes
= 0; /* unsigned long long to catch too-large input */
1454 char * oldpath
= getenv("PATH");
1455 char * extended_opts
= 0;
1457 char * usage_types
= 0;
1459 * NOTE: A few words about fs_blocks_count and blocksize:
1461 * Initially, blocksize is set to zero, which implies 1024.
1462 * If -b is specified, blocksize is updated to the user's value.
1464 * Next, the device size or the user's "blocks" command line argument
1465 * is used to set fs_blocks_count; the units are blocksize.
1467 * Later, if blocksize hasn't been set and the profile specifies a
1468 * blocksize, then blocksize is updated and fs_blocks_count is scaled
1469 * appropriately. Note the change in units!
1471 * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1473 blk64_t fs_blocks_count
= 0;
1475 int s_opt
= -1, r_opt
= -1;
1476 char *fs_features
= 0;
1479 int pathlen
= sizeof(PATH_SET
) + 1;
1482 pathlen
+= strlen(oldpath
);
1483 newpath
= malloc(pathlen
);
1485 fprintf(stderr
, "%s",
1486 _("Couldn't allocate memory for new PATH.\n"));
1489 strcpy(newpath
, PATH_SET
);
1491 /* Update our PATH to include /sbin */
1493 strcat (newpath
, ":");
1494 strcat (newpath
, oldpath
);
1498 tmp
= getenv("MKE2FS_SYNC");
1500 sync_kludge
= atoi(tmp
);
1502 /* Determine the system page size if possible */
1504 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1505 #define _SC_PAGESIZE _SC_PAGE_SIZE
1508 sysval
= sysconf(_SC_PAGESIZE
);
1510 sys_page_size
= sysval
;
1511 #endif /* _SC_PAGESIZE */
1512 #endif /* HAVE_SYSCONF */
1514 if ((tmp
= getenv("MKE2FS_CONFIG")) != NULL
)
1516 profile_set_syntax_err_cb(syntax_err_report
);
1517 retval
= profile_init(config_fn
, &profile
);
1518 if (retval
== ENOENT
) {
1519 retval
= profile_init(default_files
, &profile
);
1522 retval
= profile_set_default(profile
, mke2fs_default_profile
);
1525 } else if (retval
) {
1527 fprintf(stderr
, _("Couldn't init profile successfully"
1528 " (error: %ld).\n"), retval
);
1532 setbuf(stdout
, NULL
);
1533 setbuf(stderr
, NULL
);
1534 add_error_table(&et_ext2_error_table
);
1535 add_error_table(&et_prof_error_table
);
1536 memset(&fs_param
, 0, sizeof(struct ext2_super_block
));
1537 fs_param
.s_rev_level
= 1; /* Create revision 1 filesystems now */
1539 if (is_before_linux_ver(2, 2, 0))
1540 fs_param
.s_rev_level
= 0;
1542 if (argc
&& *argv
) {
1543 program_name
= get_progname(*argv
);
1545 /* If called as mkfs.ext3, create a journal inode */
1546 if (!strcmp(program_name
, "mkfs.ext3") ||
1547 !strcmp(program_name
, "mke3fs"))
1551 while ((c
= getopt (argc
, argv
,
1552 "b:ce:g:i:jl:m:no:qr:s:t:d:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:V")) != EOF
) {
1555 blocksize
= parse_num_blocks2(optarg
, -1);
1556 b
= (blocksize
> 0) ? blocksize
: -blocksize
;
1557 if (b
< EXT2_MIN_BLOCK_SIZE
||
1558 b
> EXT2_MAX_BLOCK_SIZE
) {
1559 com_err(program_name
, 0,
1560 _("invalid block size - %s"), optarg
);
1563 if (blocksize
> 4096)
1564 fprintf(stderr
, _("Warning: blocksize %d not "
1565 "usable on most systems.\n"),
1568 fs_param
.s_log_block_size
=
1569 int_log2(blocksize
>>
1570 EXT2_MIN_BLOCK_LOG_SIZE
);
1572 case 'c': /* Check for bad blocks */
1576 cluster_size
= parse_num_blocks2(optarg
, -1);
1577 if (cluster_size
<= EXT2_MIN_CLUSTER_SIZE
||
1578 cluster_size
> EXT2_MAX_CLUSTER_SIZE
) {
1579 com_err(program_name
, 0,
1580 _("invalid cluster size - %s"),
1589 com_err(program_name
, 0, "%s",
1590 _("'-R' is deprecated, use '-E' instead"));
1593 extended_opts
= optarg
;
1596 if (strcmp(optarg
, "continue") == 0)
1597 errors_behavior
= EXT2_ERRORS_CONTINUE
;
1598 else if (strcmp(optarg
, "remount-ro") == 0)
1599 errors_behavior
= EXT2_ERRORS_RO
;
1600 else if (strcmp(optarg
, "panic") == 0)
1601 errors_behavior
= EXT2_ERRORS_PANIC
;
1603 com_err(program_name
, 0,
1604 _("bad error behavior - %s"),
1613 fs_param
.s_blocks_per_group
= strtoul(optarg
, &tmp
, 0);
1615 com_err(program_name
, 0, "%s",
1616 _("Illegal number for blocks per group"));
1619 if ((fs_param
.s_blocks_per_group
% 8) != 0) {
1620 com_err(program_name
, 0, "%s",
1621 _("blocks per group must be multiple of 8"));
1626 flex_bg_size
= strtoul(optarg
, &tmp
, 0);
1628 com_err(program_name
, 0, "%s",
1629 _("Illegal number for flex_bg size"));
1632 if (flex_bg_size
< 1 ||
1633 (flex_bg_size
& (flex_bg_size
-1)) != 0) {
1634 com_err(program_name
, 0, "%s",
1635 _("flex_bg size must be a power of 2"));
1638 if (flex_bg_size
> MAX_32_NUM
) {
1639 com_err(program_name
, 0,
1640 _("flex_bg size (%lu) must be less than"
1641 " or equal to 2^31"), flex_bg_size
);
1646 inode_ratio
= strtoul(optarg
, &tmp
, 0);
1647 if (inode_ratio
< EXT2_MIN_BLOCK_SIZE
||
1648 inode_ratio
> EXT2_MAX_BLOCK_SIZE
* 1024 ||
1650 com_err(program_name
, 0,
1651 _("invalid inode ratio %s (min %d/max %d)"),
1652 optarg
, EXT2_MIN_BLOCK_SIZE
,
1653 EXT2_MAX_BLOCK_SIZE
* 1024);
1658 inode_size
= strtoul(optarg
, &tmp
, 0);
1660 com_err(program_name
, 0,
1661 _("invalid inode size - %s"), optarg
);
1670 parse_journal_opts(optarg
);
1673 fprintf(stderr
, "%s",
1674 _("Warning: -K option is deprecated and "
1675 "should not be used anymore. Use "
1676 "\'-E nodiscard\' extended option "
1681 bad_blocks_filename
= realloc(bad_blocks_filename
,
1682 strlen(optarg
) + 1);
1683 if (!bad_blocks_filename
) {
1684 com_err(program_name
, ENOMEM
, "%s",
1685 _("in malloc for bad_blocks_filename"));
1688 strcpy(bad_blocks_filename
, optarg
);
1691 volume_label
= optarg
;
1694 reserved_ratio
= strtod(optarg
, &tmp
);
1695 if ( *tmp
|| reserved_ratio
> 50 ||
1696 reserved_ratio
< 0) {
1697 com_err(program_name
, 0,
1698 _("invalid reserved blocks percent - %s"),
1710 num_inodes
= strtoul(optarg
, &tmp
, 0);
1712 com_err(program_name
, 0,
1713 _("bad num inodes - %s"), optarg
);
1718 creator_os
= optarg
;
1721 fs_features
= optarg
;
1727 r_opt
= strtoul(optarg
, &tmp
, 0);
1729 com_err(program_name
, 0,
1730 _("bad revision level - %s"), optarg
);
1733 if (r_opt
> EXT2_MAX_SUPP_REV
) {
1734 com_err(program_name
, EXT2_ET_REV_TOO_HIGH
,
1735 _("while trying to create revision %d"), r_opt
);
1738 fs_param
.s_rev_level
= r_opt
;
1740 case 's': /* deprecated */
1741 s_opt
= atoi(optarg
);
1748 com_err(program_name
, 0, "%s",
1749 _("The -t option may only be used once"));
1752 fs_type
= strdup(optarg
);
1756 com_err(program_name
, 0, "%s",
1757 _("The -T option may only be used once"));
1760 usage_types
= strdup(optarg
);
1772 /* Print version number and exit */
1773 show_version_only
++;
1779 if ((optind
== argc
) && !show_version_only
)
1781 device_name
= argv
[optind
++];
1783 if (!quiet
|| show_version_only
)
1784 fprintf (stderr
, "mke2fs %s (%s)\n", E2FSPROGS_VERSION
,
1787 if (show_version_only
) {
1788 fprintf(stderr
, _("\tUsing %s\n"),
1789 error_message(EXT2_ET_BASE
));
1794 * If there's no blocksize specified and there is a journal
1795 * device, use it to figure out the blocksize
1797 if (blocksize
<= 0 && journal_device
) {
1801 #ifdef CONFIG_TESTIO_DEBUG
1802 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1803 io_ptr
= test_io_manager
;
1804 test_io_backing_manager
= unix_io_manager
;
1807 io_ptr
= unix_io_manager
;
1808 retval
= ext2fs_open(journal_device
,
1809 EXT2_FLAG_JOURNAL_DEV_OK
, 0,
1812 com_err(program_name
, retval
,
1813 _("while trying to open journal device %s\n"),
1817 if ((blocksize
< 0) && (jfs
->blocksize
< (unsigned) (-blocksize
))) {
1818 com_err(program_name
, 0,
1819 _("Journal dev blocksize (%d) smaller than "
1820 "minimum blocksize %d\n"), jfs
->blocksize
,
1824 blocksize
= jfs
->blocksize
;
1825 printf(_("Using journal device's blocksize: %d\n"), blocksize
);
1826 fs_param
.s_log_block_size
=
1827 int_log2(blocksize
>> EXT2_MIN_BLOCK_LOG_SIZE
);
1828 ext2fs_close_free(&jfs
);
1831 if (optind
< argc
) {
1832 fs_blocks_count
= parse_num_blocks2(argv
[optind
++],
1833 fs_param
.s_log_block_size
);
1834 if (!fs_blocks_count
) {
1835 com_err(program_name
, 0,
1836 _("invalid blocks '%s' on device '%s'"),
1837 argv
[optind
- 1], device_name
);
1844 profile_get_integer(profile
, "options", "proceed_delay", 0, 0,
1847 /* The isatty() test is so we don't break existing scripts */
1848 flags
= CREATE_FILE
;
1849 if (isatty(0) && isatty(1))
1850 flags
|= CHECK_FS_EXIST
;
1852 flags
|= VERBOSE_CREATE
;
1853 if (fs_blocks_count
== 0)
1855 if (!check_plausibility(device_name
, flags
, &is_device
) && !force
)
1856 proceed_question(proceed_delay
);
1858 check_mount(device_name
, force
, _("filesystem"));
1860 /* Determine the size of the device (if possible) */
1861 if (noaction
&& fs_blocks_count
) {
1862 dev_size
= fs_blocks_count
;
1865 retval
= ext2fs_get_device_size2(device_name
,
1866 EXT2_BLOCK_SIZE(&fs_param
),
1869 if (retval
&& (retval
!= EXT2_ET_UNIMPLEMENTED
)) {
1870 com_err(program_name
, retval
, "%s",
1871 _("while trying to determine filesystem size"));
1874 if (!fs_blocks_count
) {
1875 if (retval
== EXT2_ET_UNIMPLEMENTED
) {
1876 com_err(program_name
, 0, "%s",
1877 _("Couldn't determine device size; you "
1878 "must specify\nthe size of the "
1882 if (dev_size
== 0) {
1883 com_err(program_name
, 0, "%s",
1884 _("Device size reported to be zero. "
1885 "Invalid partition specified, or\n\t"
1886 "partition table wasn't reread "
1887 "after running fdisk, due to\n\t"
1888 "a modified partition being busy "
1889 "and in use. You may need to reboot\n\t"
1890 "to re-read your partition table.\n"
1894 fs_blocks_count
= dev_size
;
1895 if (sys_page_size
> EXT2_BLOCK_SIZE(&fs_param
))
1896 fs_blocks_count
&= ~((blk64_t
) ((sys_page_size
/
1897 EXT2_BLOCK_SIZE(&fs_param
))-1));
1899 } else if (!force
&& is_device
&& (fs_blocks_count
> dev_size
)) {
1900 com_err(program_name
, 0, "%s",
1901 _("Filesystem larger than apparent device size."));
1902 proceed_question(proceed_delay
);
1906 profile_get_string(profile
, "devices", device_name
,
1907 "fs_type", 0, &fs_type
);
1909 profile_get_string(profile
, "devices", device_name
,
1910 "usage_types", 0, &usage_types
);
1913 * We have the file system (or device) size, so we can now
1914 * determine the appropriate file system types so the fs can
1915 * be appropriately configured.
1917 fs_types
= parse_fs_type(fs_type
, usage_types
, &fs_param
,
1918 fs_blocks_count
? fs_blocks_count
: dev_size
,
1921 fprintf(stderr
, "%s", _("Failed to parse fs types list\n"));
1925 /* Figure out what features should be enabled */
1928 if (fs_param
.s_rev_level
!= EXT2_GOOD_OLD_REV
) {
1929 tmp
= get_string_from_profile(fs_types
, "base_features",
1930 "sparse_super,filetype,resize_inode,dir_index");
1931 edit_feature(tmp
, &fs_param
.s_feature_compat
);
1934 /* And which mount options as well */
1935 tmp
= get_string_from_profile(fs_types
, "default_mntopts",
1937 edit_mntopts(tmp
, &fs_param
.s_default_mount_opts
);
1941 for (cpp
= fs_types
; *cpp
; cpp
++) {
1943 profile_get_string(profile
, "fs_types", *cpp
,
1944 "features", "", &tmp
);
1946 edit_feature(tmp
, &fs_param
.s_feature_compat
);
1950 tmp
= get_string_from_profile(fs_types
, "default_features",
1953 /* Mask off features which aren't supported by the Hurd */
1954 if (for_hurd(creator_os
)) {
1955 fs_param
.s_feature_incompat
&= ~EXT2_FEATURE_INCOMPAT_FILETYPE
;
1956 fs_param
.s_feature_ro_compat
&=
1957 ~(EXT4_FEATURE_RO_COMPAT_HUGE_FILE
|
1958 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
);
1960 edit_feature(fs_features
? fs_features
: tmp
,
1961 &fs_param
.s_feature_compat
);
1965 * If the user specified features incompatible with the Hurd, complain
1967 if (for_hurd(creator_os
)) {
1968 if (fs_param
.s_feature_incompat
&
1969 EXT2_FEATURE_INCOMPAT_FILETYPE
) {
1970 fprintf(stderr
, "%s", _("The HURD does not support the "
1971 "filetype feature.\n"));
1974 if (fs_param
.s_feature_ro_compat
&
1975 EXT4_FEATURE_RO_COMPAT_HUGE_FILE
) {
1976 fprintf(stderr
, "%s", _("The HURD does not support the "
1977 "huge_file feature.\n"));
1980 if (fs_param
.s_feature_ro_compat
&
1981 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
) {
1982 fprintf(stderr
, "%s", _("The HURD does not support the "
1983 "metadata_csum feature.\n"));
1988 /* Get the hardware sector sizes, if available */
1989 retval
= ext2fs_get_device_sectsize(device_name
, &lsector_size
);
1991 com_err(program_name
, retval
, "%s",
1992 _("while trying to determine hardware sector size"));
1995 retval
= ext2fs_get_device_phys_sectsize(device_name
, &psector_size
);
1997 com_err(program_name
, retval
, "%s",
1998 _("while trying to determine physical sector size"));
2002 tmp
= getenv("MKE2FS_DEVICE_SECTSIZE");
2004 lsector_size
= atoi(tmp
);
2005 tmp
= getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2007 psector_size
= atoi(tmp
);
2009 /* Older kernels may not have physical/logical distinction */
2011 psector_size
= lsector_size
;
2013 if (blocksize
<= 0) {
2014 use_bsize
= get_int_from_profile(fs_types
, "blocksize", 4096);
2016 if (use_bsize
== -1) {
2017 use_bsize
= sys_page_size
;
2018 if (is_before_linux_ver(2, 6, 0) && use_bsize
> 4096)
2021 if (lsector_size
&& use_bsize
< lsector_size
)
2022 use_bsize
= lsector_size
;
2023 if ((blocksize
< 0) && (use_bsize
< (-blocksize
)))
2024 use_bsize
= -blocksize
;
2025 blocksize
= use_bsize
;
2026 fs_blocks_count
/= (blocksize
/ 1024);
2028 if (blocksize
< lsector_size
) { /* Impossible */
2029 com_err(program_name
, EINVAL
, "%s",
2030 _("while setting blocksize; too small "
2033 } else if ((blocksize
< psector_size
) &&
2034 (psector_size
<= sys_page_size
)) { /* Suboptimal */
2035 fprintf(stderr
, _("Warning: specified blocksize %d is "
2036 "less than device physical sectorsize %d\n"),
2037 blocksize
, psector_size
);
2041 fs_param
.s_log_block_size
=
2042 int_log2(blocksize
>> EXT2_MIN_BLOCK_LOG_SIZE
);
2045 * We now need to do a sanity check of fs_blocks_count for
2046 * 32-bit vs 64-bit block number support.
2048 if ((fs_blocks_count
> MAX_32_NUM
) &&
2049 (fs_param
.s_feature_incompat
& EXT4_FEATURE_INCOMPAT_64BIT
))
2050 fs_param
.s_feature_compat
&= ~EXT2_FEATURE_COMPAT_RESIZE_INODE
;
2051 if ((fs_blocks_count
> MAX_32_NUM
) &&
2052 !(fs_param
.s_feature_incompat
& EXT4_FEATURE_INCOMPAT_64BIT
) &&
2053 get_bool_from_profile(fs_types
, "auto_64-bit_support", 0)) {
2054 fs_param
.s_feature_incompat
|= EXT4_FEATURE_INCOMPAT_64BIT
;
2055 fs_param
.s_feature_compat
&= ~EXT2_FEATURE_COMPAT_RESIZE_INODE
;
2057 if ((fs_blocks_count
> MAX_32_NUM
) &&
2058 !(fs_param
.s_feature_incompat
& EXT4_FEATURE_INCOMPAT_64BIT
)) {
2059 fprintf(stderr
, _("%s: Size of device (0x%llx blocks) %s "
2060 "too big to be expressed\n\t"
2061 "in 32 bits using a blocksize of %d.\n"),
2062 program_name
, fs_blocks_count
, device_name
,
2063 EXT2_BLOCK_SIZE(&fs_param
));
2067 ext2fs_blocks_count_set(&fs_param
, fs_blocks_count
);
2069 if (fs_param
.s_feature_incompat
& EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
) {
2070 fs_types
[0] = strdup("journal");
2075 fputs(_("fs_types for mke2fs.conf resolution: "), stdout
);
2076 print_str_list(fs_types
);
2079 if (r_opt
== EXT2_GOOD_OLD_REV
&&
2080 (fs_param
.s_feature_compat
|| fs_param
.s_feature_incompat
||
2081 fs_param
.s_feature_ro_compat
)) {
2082 fprintf(stderr
, "%s", _("Filesystem features not supported "
2083 "with revision 0 filesystems\n"));
2088 if (r_opt
== EXT2_GOOD_OLD_REV
) {
2089 fprintf(stderr
, "%s",
2090 _("Sparse superblocks not supported "
2091 "with revision 0 filesystems\n"));
2094 fs_param
.s_feature_ro_compat
|=
2095 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
;
2096 } else if (s_opt
== 0)
2097 fs_param
.s_feature_ro_compat
&=
2098 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
;
2100 if (journal_size
!= 0) {
2101 if (r_opt
== EXT2_GOOD_OLD_REV
) {
2102 fprintf(stderr
, "%s", _("Journals not supported with "
2103 "revision 0 filesystems\n"));
2106 fs_param
.s_feature_compat
|=
2107 EXT3_FEATURE_COMPAT_HAS_JOURNAL
;
2110 /* Get reserved_ratio from profile if not specified on cmd line. */
2111 if (reserved_ratio
< 0.0) {
2112 reserved_ratio
= get_double_from_profile(
2113 fs_types
, "reserved_ratio", 5.0);
2114 if (reserved_ratio
> 50 || reserved_ratio
< 0) {
2115 com_err(program_name
, 0,
2116 _("invalid reserved blocks percent - %lf"),
2122 if (fs_param
.s_feature_incompat
&
2123 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
) {
2125 fs_param
.s_feature_incompat
= EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
;
2126 fs_param
.s_feature_compat
= 0;
2127 fs_param
.s_feature_ro_compat
&=
2128 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
;
2131 /* Check the user's mkfs options for 64bit */
2132 if ((fs_param
.s_feature_incompat
& EXT4_FEATURE_INCOMPAT_64BIT
) &&
2133 !(fs_param
.s_feature_incompat
& EXT3_FEATURE_INCOMPAT_EXTENTS
)) {
2134 printf("%s", _("Extents MUST be enabled for a 64-bit "
2135 "filesystem. Pass -O extents to rectify.\n"));
2139 /* Set first meta blockgroup via an environment variable */
2140 /* (this is mostly for debugging purposes) */
2141 if ((fs_param
.s_feature_incompat
& EXT2_FEATURE_INCOMPAT_META_BG
) &&
2142 ((tmp
= getenv("MKE2FS_FIRST_META_BG"))))
2143 fs_param
.s_first_meta_bg
= atoi(tmp
);
2144 if (fs_param
.s_feature_ro_compat
& EXT4_FEATURE_RO_COMPAT_BIGALLOC
) {
2146 cluster_size
= get_int_from_profile(fs_types
,
2149 fs_param
.s_log_cluster_size
=
2150 int_log2(cluster_size
>> EXT2_MIN_CLUSTER_LOG_SIZE
);
2151 if (fs_param
.s_log_cluster_size
&&
2152 fs_param
.s_log_cluster_size
< fs_param
.s_log_block_size
) {
2153 com_err(program_name
, 0, "%s",
2154 _("The cluster size may not be "
2155 "smaller than the block size.\n"));
2158 } else if (cluster_size
) {
2159 com_err(program_name
, 0, "%s",
2160 _("specifying a cluster size requires the "
2161 "bigalloc feature"));
2164 fs_param
.s_log_cluster_size
= fs_param
.s_log_block_size
;
2166 if (inode_ratio
== 0) {
2167 inode_ratio
= get_int_from_profile(fs_types
, "inode_ratio",
2169 if (inode_ratio
< blocksize
)
2170 inode_ratio
= blocksize
;
2171 if (inode_ratio
< EXT2_CLUSTER_SIZE(&fs_param
))
2172 inode_ratio
= EXT2_CLUSTER_SIZE(&fs_param
);
2175 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2176 retval
= get_device_geometry(device_name
, &fs_param
, psector_size
);
2179 _("warning: Unable to get device geometry for %s\n"),
2181 } else if (retval
) {
2182 printf(_("%s alignment is offset by %lu bytes.\n"),
2183 device_name
, retval
);
2184 printf(_("This may result in very poor performance, "
2185 "(re)-partitioning suggested.\n"));
2189 num_backups
= get_int_from_profile(fs_types
, "num_backup_sb", 2);
2191 blocksize
= EXT2_BLOCK_SIZE(&fs_param
);
2194 * Initialize s_desc_size so that the parse_extended_opts()
2195 * can correctly handle "-E resize=NNN" if the 64-bit option
2198 if (fs_param
.s_feature_incompat
& EXT4_FEATURE_INCOMPAT_64BIT
)
2199 fs_param
.s_desc_size
= EXT2_MIN_DESC_SIZE_64BIT
;
2201 /* This check should happen beyond the last assignment to blocksize */
2202 if (blocksize
> sys_page_size
) {
2204 com_err(program_name
, 0,
2205 _("%d-byte blocks too big for system (max %d)"),
2206 blocksize
, sys_page_size
);
2207 proceed_question(proceed_delay
);
2209 fprintf(stderr
, _("Warning: %d-byte blocks too big for system "
2210 "(max %d), forced to continue\n"),
2211 blocksize
, sys_page_size
);
2215 * On newer kernels we do have lazy_itable_init support. So pick the
2216 * right default in case ext4 module is not loaded.
2218 if (is_before_linux_ver(2, 6, 37))
2219 lazy_itable_init
= 0;
2221 lazy_itable_init
= 1;
2223 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK
) == 0)
2224 lazy_itable_init
= 1;
2226 lazy_itable_init
= get_bool_from_profile(fs_types
,
2229 discard
= get_bool_from_profile(fs_types
, "discard" , discard
);
2230 journal_flags
|= get_bool_from_profile(fs_types
,
2231 "lazy_journal_init", 0) ?
2232 EXT2_MKJOURNAL_LAZYINIT
: 0;
2233 journal_flags
|= EXT2_MKJOURNAL_NO_MNT_CHECK
;
2235 if (!journal_location_string
)
2236 journal_location_string
= get_string_from_profile(fs_types
,
2237 "journal_location", "");
2238 if ((journal_location
== ~0ULL) && journal_location_string
&&
2239 *journal_location_string
)
2240 journal_location
= parse_num_blocks2(journal_location_string
,
2241 fs_param
.s_log_block_size
);
2242 free(journal_location_string
);
2244 packed_meta_blocks
= get_bool_from_profile(fs_types
,
2245 "packed_meta_blocks", 0);
2246 if (packed_meta_blocks
)
2247 journal_location
= 0;
2249 /* Get options from profile */
2250 for (cpp
= fs_types
; *cpp
; cpp
++) {
2252 profile_get_string(profile
, "fs_types", *cpp
, "options", "", &tmp
);
2254 parse_extended_opts(&fs_param
, tmp
);
2259 parse_extended_opts(&fs_param
, extended_opts
);
2261 /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2262 if ((fs_param
.s_feature_ro_compat
&
2263 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
) &&
2264 (fs_param
.s_feature_ro_compat
& EXT4_FEATURE_RO_COMPAT_GDT_CSUM
))
2265 fs_param
.s_feature_ro_compat
&=
2266 ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM
;
2268 /* Can't support bigalloc feature without extents feature */
2269 if ((fs_param
.s_feature_ro_compat
& EXT4_FEATURE_RO_COMPAT_BIGALLOC
) &&
2270 !(fs_param
.s_feature_incompat
& EXT3_FEATURE_INCOMPAT_EXTENTS
)) {
2271 com_err(program_name
, 0, "%s",
2272 _("Can't support bigalloc feature without "
2273 "extents feature"));
2277 if ((fs_param
.s_feature_incompat
& EXT2_FEATURE_INCOMPAT_META_BG
) &&
2278 (fs_param
.s_feature_compat
& EXT2_FEATURE_COMPAT_RESIZE_INODE
)) {
2279 fprintf(stderr
, "%s", _("The resize_inode and meta_bg "
2280 "features are not compatible.\n"
2281 "They can not be both enabled "
2282 "simultaneously.\n"));
2287 (fs_param
.s_feature_ro_compat
& EXT4_FEATURE_RO_COMPAT_BIGALLOC
))
2288 fprintf(stderr
, "%s", _("\nWarning: the bigalloc feature is "
2289 "still under development\n"
2290 "See https://ext4.wiki.kernel.org/"
2291 "index.php/Bigalloc for more information\n\n"));
2294 * Since sparse_super is the default, we would only have a problem
2295 * here if it was explicitly disabled.
2297 if ((fs_param
.s_feature_compat
& EXT2_FEATURE_COMPAT_RESIZE_INODE
) &&
2298 !(fs_param
.s_feature_ro_compat
&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
)) {
2299 com_err(program_name
, 0, "%s",
2300 _("reserved online resize blocks not supported "
2301 "on non-sparse filesystem"));
2305 if (fs_param
.s_blocks_per_group
) {
2306 if (fs_param
.s_blocks_per_group
< 256 ||
2307 fs_param
.s_blocks_per_group
> 8 * (unsigned) blocksize
) {
2308 com_err(program_name
, 0, "%s",
2309 _("blocks per group count out of range"));
2315 * If the bigalloc feature is enabled, then the -g option will
2316 * specify the number of clusters per group.
2318 if (fs_param
.s_feature_ro_compat
& EXT4_FEATURE_RO_COMPAT_BIGALLOC
) {
2319 fs_param
.s_clusters_per_group
= fs_param
.s_blocks_per_group
;
2320 fs_param
.s_blocks_per_group
= 0;
2323 if (inode_size
== 0)
2324 inode_size
= get_int_from_profile(fs_types
, "inode_size", 0);
2325 if (!flex_bg_size
&& (fs_param
.s_feature_incompat
&
2326 EXT4_FEATURE_INCOMPAT_FLEX_BG
))
2327 flex_bg_size
= get_uint_from_profile(fs_types
,
2328 "flex_bg_size", 16);
2330 if (!(fs_param
.s_feature_incompat
&
2331 EXT4_FEATURE_INCOMPAT_FLEX_BG
)) {
2332 com_err(program_name
, 0, "%s",
2333 _("Flex_bg feature not enabled, so "
2334 "flex_bg size may not be specified"));
2337 fs_param
.s_log_groups_per_flex
= int_log2(flex_bg_size
);
2340 if (inode_size
&& fs_param
.s_rev_level
>= EXT2_DYNAMIC_REV
) {
2341 if (inode_size
< EXT2_GOOD_OLD_INODE_SIZE
||
2342 inode_size
> EXT2_BLOCK_SIZE(&fs_param
) ||
2343 inode_size
& (inode_size
- 1)) {
2344 com_err(program_name
, 0,
2345 _("invalid inode size %d (min %d/max %d)"),
2346 inode_size
, EXT2_GOOD_OLD_INODE_SIZE
,
2350 fs_param
.s_inode_size
= inode_size
;
2354 * If inode size is 128 and inline data is enabled, we need
2355 * to notify users that inline data will never be useful.
2357 if ((fs_param
.s_feature_incompat
&
2358 EXT4_FEATURE_INCOMPAT_INLINE_DATA
) &&
2359 fs_param
.s_inode_size
== EXT2_GOOD_OLD_INODE_SIZE
) {
2360 com_err(program_name
, 0,
2361 _("inode size is %d, inline data is useless"),
2362 fs_param
.s_inode_size
);
2366 /* Make sure number of inodes specified will fit in 32 bits */
2367 if (num_inodes
== 0) {
2368 unsigned long long n
;
2369 n
= ext2fs_blocks_count(&fs_param
) * blocksize
/ inode_ratio
;
2370 if (n
> MAX_32_NUM
) {
2371 if (fs_param
.s_feature_incompat
&
2372 EXT4_FEATURE_INCOMPAT_64BIT
)
2373 num_inodes
= MAX_32_NUM
;
2375 com_err(program_name
, 0,
2376 _("too many inodes (%llu), raise "
2377 "inode ratio?"), n
);
2381 } else if (num_inodes
> MAX_32_NUM
) {
2382 com_err(program_name
, 0,
2383 _("too many inodes (%llu), specify < 2^32 inodes"),
2388 * Calculate number of inodes based on the inode ratio
2390 fs_param
.s_inodes_count
= num_inodes
? num_inodes
:
2391 (ext2fs_blocks_count(&fs_param
) * blocksize
) / inode_ratio
;
2393 if ((((unsigned long long)fs_param
.s_inodes_count
) *
2394 (inode_size
? inode_size
: EXT2_GOOD_OLD_INODE_SIZE
)) >=
2395 ((ext2fs_blocks_count(&fs_param
)) *
2396 EXT2_BLOCK_SIZE(&fs_param
))) {
2397 com_err(program_name
, 0, _("inode_size (%u) * inodes_count "
2398 "(%u) too big for a\n\t"
2399 "filesystem with %llu blocks, "
2400 "specify higher inode_ratio (-i)\n\t"
2401 "or lower inode count (-N).\n"),
2402 inode_size
? inode_size
: EXT2_GOOD_OLD_INODE_SIZE
,
2403 fs_param
.s_inodes_count
,
2404 (unsigned long long) ext2fs_blocks_count(&fs_param
));
2409 * Calculate number of blocks to reserve
2411 ext2fs_r_blocks_count_set(&fs_param
, reserved_ratio
*
2412 ext2fs_blocks_count(&fs_param
) / 100.0);
2414 if (fs_param
.s_feature_compat
& EXT4_FEATURE_COMPAT_SPARSE_SUPER2
) {
2415 if (num_backups
>= 1)
2416 fs_param
.s_backup_bgs
[0] = 1;
2417 if (num_backups
>= 2)
2418 fs_param
.s_backup_bgs
[1] = ~0;
2425 static int should_do_undo(const char *name
)
2430 struct ext2_super_block super
;
2431 io_manager manager
= unix_io_manager
;
2432 int csum_flag
, force_undo
;
2434 csum_flag
= EXT2_HAS_RO_COMPAT_FEATURE(&fs_param
,
2435 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
|
2436 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
);
2437 force_undo
= get_int_from_profile(fs_types
, "force_undo", 0);
2438 if (!force_undo
&& (!csum_flag
|| !lazy_itable_init
))
2441 retval
= manager
->open(name
, IO_FLAG_EXCLUSIVE
, &channel
);
2444 * We don't handle error cases instead we
2445 * declare that the file system doesn't exist
2446 * and let the rest of mke2fs take care of
2453 io_channel_set_blksize(channel
, SUPERBLOCK_OFFSET
);
2454 retval
= io_channel_read_blk64(channel
, 1, -SUPERBLOCK_SIZE
, &super
);
2460 #if defined(WORDS_BIGENDIAN)
2461 s_magic
= ext2fs_swab16(super
.s_magic
);
2463 s_magic
= super
.s_magic
;
2466 if (s_magic
== EXT2_SUPER_MAGIC
)
2470 io_channel_close(channel
);
2477 static int mke2fs_setup_tdb(const char *name
, io_manager
*io_ptr
)
2479 errcode_t retval
= ENOMEM
;
2480 char *tdb_dir
= NULL
, *tdb_file
= NULL
;
2481 char *dev_name
, *tmp_name
;
2482 int free_tdb_dir
= 0;
2485 * Configuration via a conf file would be
2488 tdb_dir
= getenv("E2FSPROGS_UNDO_DIR");
2490 profile_get_string(profile
, "defaults",
2491 "undo_dir", 0, "/var/lib/e2fsprogs",
2496 if (!strcmp(tdb_dir
, "none") || (tdb_dir
[0] == 0) ||
2497 access(tdb_dir
, W_OK
)) {
2503 tmp_name
= strdup(name
);
2506 dev_name
= basename(tmp_name
);
2507 tdb_file
= malloc(strlen(tdb_dir
) + 8 + strlen(dev_name
) + 7 + 1);
2512 sprintf(tdb_file
, "%s/mke2fs-%s.e2undo", tdb_dir
, dev_name
);
2515 if ((unlink(tdb_file
) < 0) && (errno
!= ENOENT
)) {
2520 set_undo_io_backing_manager(*io_ptr
);
2521 *io_ptr
= undo_io_manager
;
2522 retval
= set_undo_io_backup_file(tdb_file
);
2525 printf(_("Overwriting existing filesystem; this can be undone "
2526 "using the command:\n"
2527 " e2undo %s %s\n\n"), tdb_file
, name
);
2538 com_err(program_name
, retval
, "%s",
2539 _("while trying to setup undo file\n"));
2543 static int mke2fs_discard_device(ext2_filsys fs
)
2545 struct ext2fs_numeric_progress_struct progress
;
2546 blk64_t blocks
= ext2fs_blocks_count(fs
->super
);
2547 blk64_t count
= DISCARD_STEP_MB
;
2552 * Let's try if discard really works on the device, so
2553 * we do not print numeric progress resulting in failure
2556 retval
= io_channel_discard(fs
->io
, 0, fs
->blocksize
);
2559 cur
= fs
->blocksize
;
2561 count
*= (1024 * 1024);
2562 count
/= fs
->blocksize
;
2564 ext2fs_numeric_progress_init(fs
, &progress
,
2565 _("Discarding device blocks: "),
2567 while (cur
< blocks
) {
2568 ext2fs_numeric_progress_update(fs
, &progress
, cur
);
2570 if (cur
+ count
> blocks
)
2571 count
= blocks
- cur
;
2573 retval
= io_channel_discard(fs
->io
, cur
, count
);
2580 ext2fs_numeric_progress_close(fs
, &progress
,
2583 printf("%s\n",error_message(retval
));
2585 ext2fs_numeric_progress_close(fs
, &progress
,
2591 static void fix_cluster_bg_counts(ext2_filsys fs
)
2593 blk64_t block
, num_blocks
, last_block
, next
;
2594 blk64_t tot_free
= 0;
2599 num_blocks
= ext2fs_blocks_count(fs
->super
);
2600 last_block
= ext2fs_group_last_block2(fs
, group
);
2601 block
= fs
->super
->s_first_data_block
;
2602 while (block
< num_blocks
) {
2603 retval
= ext2fs_find_first_zero_block_bitmap2(fs
->block_map
,
2604 block
, last_block
, &next
);
2608 block
= last_block
+ 1;
2612 retval
= ext2fs_find_first_set_block_bitmap2(fs
->block_map
,
2613 block
, last_block
, &next
);
2615 next
= last_block
+ 1;
2616 grp_free
+= EXT2FS_NUM_B2C(fs
, next
- block
);
2617 tot_free
+= next
- block
;
2620 if (block
> last_block
) {
2622 ext2fs_bg_free_blocks_count_set(fs
, group
, grp_free
);
2623 ext2fs_group_desc_csum_set(fs
, group
);
2626 last_block
= ext2fs_group_last_block2(fs
, group
);
2629 ext2fs_free_blocks_count_set(fs
->super
, tot_free
);
2632 static int create_quota_inodes(ext2_filsys fs
)
2636 quota_init_context(&qctx
, fs
, -1);
2637 quota_compute_usage(qctx
);
2638 quota_write_inode(qctx
, quotatype
);
2639 quota_release_context(&qctx
);
2644 static errcode_t
set_error_behavior(ext2_filsys fs
)
2647 short errors
= fs
->super
->s_errors
;
2649 arg
= get_string_from_profile(fs_types
, "errors", NULL
);
2653 if (strcmp(arg
, "continue") == 0)
2654 errors
= EXT2_ERRORS_CONTINUE
;
2655 else if (strcmp(arg
, "remount-ro") == 0)
2656 errors
= EXT2_ERRORS_RO
;
2657 else if (strcmp(arg
, "panic") == 0)
2658 errors
= EXT2_ERRORS_PANIC
;
2660 com_err(program_name
, 0,
2661 _("bad error behavior in profile - %s"),
2664 return EXT2_ET_INVALID_ARGUMENT
;
2669 if (errors_behavior
)
2670 errors
= errors_behavior
;
2672 fs
->super
->s_errors
= errors
;
2676 int main (int argc
, char *argv
[])
2678 errcode_t retval
= 0;
2680 badblocks_list bb_list
= 0;
2681 unsigned int journal_blocks
= 0;
2682 unsigned int i
, checkinterval
;
2688 char opt_string
[40];
2690 int itable_zeroed
= 0;
2693 setlocale(LC_MESSAGES
, "");
2694 setlocale(LC_CTYPE
, "");
2695 bindtextdomain(NLS_CAT_NAME
, LOCALEDIR
);
2696 textdomain(NLS_CAT_NAME
);
2697 set_com_err_gettext(gettext
);
2701 #ifdef CONFIG_TESTIO_DEBUG
2702 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2703 io_ptr
= test_io_manager
;
2704 test_io_backing_manager
= unix_io_manager
;
2707 io_ptr
= unix_io_manager
;
2709 if (should_do_undo(device_name
)) {
2710 retval
= mke2fs_setup_tdb(device_name
, &io_ptr
);
2716 * Initialize the superblock....
2718 flags
= EXT2_FLAG_EXCLUSIVE
;
2720 flags
|= EXT2_FLAG_DIRECT_IO
;
2721 profile_get_boolean(profile
, "options", "old_bitmaps", 0, 0,
2724 flags
|= EXT2_FLAG_64BITS
;
2726 * By default, we print how many inode tables or block groups
2727 * or whatever we've written so far. The quiet flag disables
2728 * this, along with a lot of other output.
2731 flags
|= EXT2_FLAG_PRINT_PROGRESS
;
2732 retval
= ext2fs_initialize(device_name
, flags
, &fs_param
, io_ptr
, &fs
);
2734 com_err(device_name
, retval
, "%s",
2735 _("while setting up superblock"));
2738 fs
->progress_ops
= &ext2fs_numeric_progress_ops
;
2740 /* Set the error behavior */
2741 retval
= set_error_behavior(fs
);
2745 /* Check the user's mkfs options for metadata checksumming */
2747 !EXT2_HAS_INCOMPAT_FEATURE(fs
->super
,
2748 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
) &&
2749 EXT2_HAS_RO_COMPAT_FEATURE(fs
->super
,
2750 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
)) {
2751 if (!EXT2_HAS_INCOMPAT_FEATURE(fs
->super
,
2752 EXT3_FEATURE_INCOMPAT_EXTENTS
))
2754 _("Extents are not enabled. The file extent "
2755 "tree can be checksummed, whereas block maps "
2756 "cannot. Not enabling extents reduces the "
2757 "coverage of metadata checksumming. "
2758 "Pass -O extents to rectify.\n"));
2759 if (!EXT2_HAS_INCOMPAT_FEATURE(fs
->super
,
2760 EXT4_FEATURE_INCOMPAT_64BIT
))
2762 _("64-bit filesystem support is not enabled. "
2763 "The larger fields afforded by this feature "
2764 "enable full-strength checksumming. "
2765 "Pass -O 64bit to rectify.\n"));
2768 /* Calculate journal blocks */
2769 if (!journal_device
&& ((journal_size
) ||
2770 (fs_param
.s_feature_compat
&
2771 EXT3_FEATURE_COMPAT_HAS_JOURNAL
)))
2772 journal_blocks
= figure_journal_size(journal_size
, fs
);
2774 /* Can't undo discard ... */
2775 if (!noaction
&& discard
&& dev_size
&& (io_ptr
!= undo_io_manager
)) {
2776 retval
= mke2fs_discard_device(fs
);
2777 if (!retval
&& io_channel_discard_zeroes_data(fs
->io
)) {
2780 _("Discard succeeded and will return "
2781 "0s - skipping inode table wipe\n"));
2782 lazy_itable_init
= 1;
2788 sprintf(opt_string
, "tdb_data_size=%d", fs
->blocksize
<= 4096 ?
2789 32768 : fs
->blocksize
* 8);
2790 io_channel_set_options(fs
->io
, opt_string
);
2792 sprintf(opt_string
, "offset=%llu", offset
);
2793 io_channel_set_options(fs
->io
, opt_string
);
2796 if (fs_param
.s_flags
& EXT2_FLAGS_TEST_FILESYS
)
2797 fs
->super
->s_flags
|= EXT2_FLAGS_TEST_FILESYS
;
2799 if ((fs_param
.s_feature_incompat
&
2800 (EXT3_FEATURE_INCOMPAT_EXTENTS
|EXT4_FEATURE_INCOMPAT_FLEX_BG
)) ||
2801 (fs_param
.s_feature_ro_compat
&
2802 (EXT4_FEATURE_RO_COMPAT_HUGE_FILE
|EXT4_FEATURE_RO_COMPAT_GDT_CSUM
|
2803 EXT4_FEATURE_RO_COMPAT_DIR_NLINK
|
2804 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
|
2805 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE
)))
2806 fs
->super
->s_kbytes_written
= 1;
2809 * Wipe out the old on-disk superblock
2812 zap_sector(fs
, 2, 6);
2815 * Parse or generate a UUID for the filesystem
2818 if (uuid_parse(fs_uuid
, fs
->super
->s_uuid
) !=0) {
2819 com_err(device_name
, 0, "could not parse UUID: %s\n",
2824 uuid_generate(fs
->super
->s_uuid
);
2825 ext2fs_init_csum_seed(fs
);
2828 * Initialize the directory index variables
2830 hash_alg_str
= get_string_from_profile(fs_types
, "hash_alg",
2832 hash_alg
= e2p_string2hash(hash_alg_str
);
2834 fs
->super
->s_def_hash_version
= (hash_alg
>= 0) ? hash_alg
:
2836 uuid_generate((unsigned char *) fs
->super
->s_hash_seed
);
2839 * Periodic checks can be enabled/disabled via config file.
2840 * Note we override the kernel include file's idea of what the default
2841 * check interval (never) should be. It's a good idea to check at
2842 * least *occasionally*, specially since servers will never rarely get
2843 * to reboot, since Linux is so robust these days. :-)
2845 * 180 days (six months) seems like a good value.
2847 #ifdef EXT2_DFL_CHECKINTERVAL
2848 #undef EXT2_DFL_CHECKINTERVAL
2850 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
2852 if (get_bool_from_profile(fs_types
, "enable_periodic_fsck", 0)) {
2853 fs
->super
->s_checkinterval
= EXT2_DFL_CHECKINTERVAL
;
2854 fs
->super
->s_max_mnt_count
= EXT2_DFL_MAX_MNT_COUNT
;
2856 * Add "jitter" to the superblock's check interval so that we
2857 * don't check all the filesystems at the same time. We use a
2858 * kludgy hack of using the UUID to derive a random jitter value
2860 for (i
= 0, val
= 0 ; i
< sizeof(fs
->super
->s_uuid
); i
++)
2861 val
+= fs
->super
->s_uuid
[i
];
2862 fs
->super
->s_max_mnt_count
+= val
% EXT2_DFL_MAX_MNT_COUNT
;
2864 fs
->super
->s_max_mnt_count
= -1;
2867 * Override the creator OS, if applicable
2869 if (creator_os
&& !set_os(fs
->super
, creator_os
)) {
2870 com_err (program_name
, 0, _("unknown os - %s"), creator_os
);
2875 * For the Hurd, we will turn off filetype since it doesn't
2878 if (fs
->super
->s_creator_os
== EXT2_OS_HURD
)
2879 fs
->super
->s_feature_incompat
&=
2880 ~EXT2_FEATURE_INCOMPAT_FILETYPE
;
2883 * Set the volume label...
2886 memset(fs
->super
->s_volume_name
, 0,
2887 sizeof(fs
->super
->s_volume_name
));
2888 strncpy(fs
->super
->s_volume_name
, volume_label
,
2889 sizeof(fs
->super
->s_volume_name
));
2893 * Set the last mount directory
2896 memset(fs
->super
->s_last_mounted
, 0,
2897 sizeof(fs
->super
->s_last_mounted
));
2898 strncpy(fs
->super
->s_last_mounted
, mount_dir
,
2899 sizeof(fs
->super
->s_last_mounted
));
2902 if (EXT2_HAS_RO_COMPAT_FEATURE(fs
->super
,
2903 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
))
2904 fs
->super
->s_checksum_type
= EXT2_CRC32C_CHKSUM
;
2906 if (!quiet
|| noaction
)
2912 if (fs
->super
->s_feature_incompat
&
2913 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
) {
2914 create_journal_dev(fs
);
2916 exit(ext2fs_close_free(&fs
) ? 1 : 0);
2919 if (bad_blocks_filename
)
2920 read_bb_file(fs
, &bb_list
, bad_blocks_filename
);
2922 test_disk(fs
, &bb_list
);
2923 handle_bad_blocks(fs
, bb_list
);
2925 fs
->stride
= fs_stride
= fs
->super
->s_raid_stride
;
2927 printf("%s", _("Allocating group tables: "));
2928 if ((fs
->super
->s_feature_incompat
& EXT4_FEATURE_INCOMPAT_FLEX_BG
) &&
2930 retval
= packed_allocate_tables(fs
);
2932 retval
= ext2fs_allocate_tables(fs
);
2934 com_err(program_name
, retval
, "%s",
2935 _("while trying to allocate filesystem tables"));
2939 printf("%s", _("done \n"));
2941 retval
= ext2fs_convert_subcluster_bitmap(fs
, &fs
->block_map
);
2943 com_err(program_name
, retval
, "%s",
2944 _("\n\twhile converting subcluster bitmap"));
2949 fs
->super
->s_state
|= EXT2_ERROR_FS
;
2950 fs
->flags
&= ~(EXT2_FLAG_IB_DIRTY
|EXT2_FLAG_BB_DIRTY
);
2952 * The command "mke2fs -S" is used to recover
2953 * corrupted file systems, so do not mark any of the
2954 * inodes as unused; we want e2fsck to consider all
2955 * inodes as potentially containing recoverable data.
2957 if (ext2fs_has_group_desc_csum(fs
)) {
2958 for (i
= 0; i
< fs
->group_desc_count
; i
++)
2959 ext2fs_bg_itable_unused_set(fs
, i
, 0);
2962 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
2963 blk64_t rsv
= 65536 / fs
->blocksize
;
2964 blk64_t blocks
= ext2fs_blocks_count(fs
->super
);
2968 #ifdef ZAP_BOOTBLOCK
2969 zap_sector(fs
, 0, 2);
2973 * Wipe out any old MD RAID (or other) metadata at the end
2974 * of the device. This will also verify that the device is
2975 * as large as we think. Be careful with very small devices.
2977 start
= (blocks
& ~(rsv
- 1));
2981 retval
= ext2fs_zero_blocks2(fs
, start
, blocks
- start
,
2985 com_err(program_name
, retval
,
2986 _("while zeroing block %llu at end of filesystem"),
2989 write_inode_tables(fs
, lazy_itable_init
, itable_zeroed
);
2990 create_root_dir(fs
);
2991 create_lost_and_found(fs
);
2993 create_bad_block_inode(fs
, bb_list
);
2994 if (fs
->super
->s_feature_compat
&
2995 EXT2_FEATURE_COMPAT_RESIZE_INODE
) {
2996 retval
= ext2fs_create_resize_inode(fs
);
2998 com_err("ext2fs_create_resize_inode", retval
,
3000 _("while reserving blocks for online resize"));
3006 if (journal_device
) {
3009 if (!check_plausibility(journal_device
, CHECK_BLOCK_DEV
,
3011 proceed_question(proceed_delay
);
3012 check_mount(journal_device
, force
, _("journal"));
3014 retval
= ext2fs_open(journal_device
, EXT2_FLAG_RW
|
3015 EXT2_FLAG_JOURNAL_DEV_OK
, 0,
3016 fs
->blocksize
, unix_io_manager
, &jfs
);
3018 com_err(program_name
, retval
,
3019 _("while trying to open journal device %s\n"),
3024 printf(_("Adding journal to device %s: "),
3028 retval
= ext2fs_add_journal_device(fs
, jfs
);
3030 com_err (program_name
, retval
,
3031 _("\n\twhile trying to add journal to device %s"),
3036 printf("%s", _("done\n"));
3037 ext2fs_close_free(&jfs
);
3038 free(journal_device
);
3039 } else if ((journal_size
) ||
3040 (fs_param
.s_feature_compat
&
3041 EXT3_FEATURE_COMPAT_HAS_JOURNAL
)) {
3043 printf("%s", _("Skipping journal creation in super-only mode\n"));
3044 fs
->super
->s_journal_inum
= EXT2_JOURNAL_INO
;
3048 if (!journal_blocks
) {
3049 fs
->super
->s_feature_compat
&=
3050 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL
;
3054 printf(_("Creating journal (%u blocks): "),
3058 retval
= ext2fs_add_journal_inode2(fs
, journal_blocks
,
3062 com_err(program_name
, retval
, "%s",
3063 _("\n\twhile trying to create journal"));
3067 printf("%s", _("done\n"));
3071 fs
->super
->s_feature_incompat
& EXT4_FEATURE_INCOMPAT_MMP
) {
3072 retval
= ext2fs_mmp_init(fs
);
3074 fprintf(stderr
, "%s",
3075 _("\nError while enabling multiple "
3076 "mount protection feature."));
3080 printf(_("Multiple mount protection is enabled "
3081 "with update interval %d seconds.\n"),
3082 fs
->super
->s_mmp_update_interval
);
3085 if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param
,
3086 EXT4_FEATURE_RO_COMPAT_BIGALLOC
))
3087 fix_cluster_bg_counts(fs
);
3088 if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param
,
3089 EXT4_FEATURE_RO_COMPAT_QUOTA
))
3090 create_quota_inodes(fs
);
3092 retval
= mk_hugefiles(fs
, device_name
);
3094 com_err(program_name
, retval
, "while creating huge files");
3095 /* Copy files from the specified directory */
3098 printf("%s", _("Copying files into the device: "));
3100 retval
= populate_fs(fs
, EXT2_ROOT_INO
, root_dir
,
3103 com_err(program_name
, retval
, "%s",
3104 _("\nError while populating file system\n"));
3107 printf("%s", _("done\n"));
3111 printf("%s", _("Writing superblocks and "
3112 "filesystem accounting information: "));
3113 checkinterval
= fs
->super
->s_checkinterval
;
3114 max_mnt_count
= fs
->super
->s_max_mnt_count
;
3115 retval
= ext2fs_close_free(&fs
);
3117 fprintf(stderr
, "%s",
3118 _("\nWarning, had trouble writing out superblocks."));
3119 } else if (!quiet
) {
3120 printf("%s", _("done\n\n"));
3121 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3122 print_check_message(max_mnt_count
, checkinterval
);
3125 remove_error_table(&et_ext2_error_table
);
3126 remove_error_table(&et_prof_error_table
);
3127 profile_release(profile
);
3128 for (i
=0; fs_types
[i
]; i
++)