tune2fs -O metadata_csum test.img
-Please run e2fsck on the filesystem.
+This operation requires a freshly checked filesystem.
+
+Please run e2fsck -f on the filesystem.
Exit status is 1
tune2fs -O metadata_csum test.img
Exit status is 0
tune2fs -O metadata_csum test.img
Enabling checksums could take some time.
-Proceed anyway (or wait 5 seconds) ? (y,n)
+Proceed anyway (or wait 5 seconds to proceed) ? (y,N)
Exit status is 1
tune2fs -I 512 test.img
Resizing inodes could take some time.
-Proceed anyway (or wait 5 seconds) ? (y,n)
-Exit status is 1
-tune2fs -U random test.img
-Setting UUID on a checksummed filesystem could take some time.
-Proceed anyway (or wait 5 seconds) ? (y,n)
+Proceed anyway (or wait 5 seconds to proceed) ? (y,N)
Exit status is 1
Change in FS metadata:
Exit status is 0
tune2fs -O metadata_csum test.img
Enabling checksums could take some time.
-Proceed anyway (or wait 5 seconds) ? (y,n)
-Please run e2fsck -D on the filesystem.
+Proceed anyway (or wait 5 seconds to proceed) ? (y,N)
+This operation requires a freshly checked filesystem.
+
+Please run e2fsck -fD on the filesystem.
Exit status is 0
test_filesys was not cleanly unmounted, check forced.
tune2fs -I 512 test.img
Resizing inodes could take some time.
-Proceed anyway (or wait 5 seconds) ? (y,n) Setting inode size 512
+Proceed anyway (or wait 5 seconds to proceed) ? (y,N) Setting inode size 512
Exit status is 0
tune2fs -U f0f0f0f0-f0f0-f0f0-f0f0-f0f0f0f0f0f0 test.img
-Setting UUID on a checksummed filesystem could take some time.
-Proceed anyway (or wait 5 seconds) ? (y,n) Exit status is 0
+Setting the UUID on this filesystem could take some time.
+Proceed anyway (or wait 5 seconds to proceed) ? (y,N) Exit status is 0
Backing up journal inode block information.
Pass 5: Checking group summary information
Exit status is 0
+
+Testing with metadata checksum enabled
+Creating filesystem with 524288 1k blocks and 65536 inodes
+Superblock backups stored on blocks:
+ 8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409
+
+Allocating group tables: \b\b\b\b\bdone
+Writing inode tables: \b\b\b\b\bdone
+Creating journal (16384 blocks): done
+Creating 445 huge file(s) with 1024 blocks each: done
+Writing superblocks and filesystem accounting information: \b\b\b\b\bdone
+
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+Exit status is 0
+tune2fs -U random test.img
+Setting the UUID on this filesystem could take some time.
+Proceed anyway (or wait 5 seconds to proceed) ? (y,N)
+Exit status is 1