disk-utils/partx.8

   1 .\" partx.8 --
   2 .\" Copyright 2007 Karel Zak <kzak@redhat.com>
   3 .\" Copyright 2007 Red Hat, Inc.
   4 .\" Copyright 2010 Davidlohr Bueso <dave@gnu.org>
   5 .\" May be distributed under the GNU General Public License
   6 .TH PARTX "8" "June 2012" "util-linux" "System Administration"
   7 .SH NAME
   8 partx \- tell the Linux kernel about the presence and numbering of
   9 on-disk partitions
  10 .SH SYNOPSIS
  11 partx [\-a|\-d|\-s] [\-t TYPE] [\-n M:N] [\-] disk
  12 .br
  13 partx [\-a|\-d|\-s] [\-t TYPE] partition [disk]
  14 .SH DESCRIPTION
  15 Given a device or disk-image,
  16 .B partx
  17 tries to parse the partition table and list its contents.  It
  18 optionally adds or removes partitions.
  19 .PP
  20 The
  21 .I disk
  22 argument is optional when a
  23 .I partition
  24 argument is provided.  To force scanning a partition as if it were a whole disk
  25 (for example to list nested subpartitions), use the argument "-".  For example:
  26
  27 .RS 7
  28 .TP
  29 partx \-\-show \- /dev/sda3
  30 .RE
  31 .PP
  32 This will see sda3 as a whole-disk rather than a partition.
  33 .PP
  34 The
  35 .B partx is not an fdisk program
  36 \-\- adding and removing partitions does not change the disk, it just
  37 tells the kernel about the presence and numbering of on-disk
  38 partitions.
  39 .SH OPTIONS
  40 .IP "\fB\-a\fR, \fB\-\-add\fP"
  41 Add the specified partitions, or read the disk and add all partitions.
  42 .IP "\fB\-b\fR, \fB\-\-bytes\fP"
  43 Print the SIZE column in bytes rather than in human-readable format.
  44 .IP "\fB\-d\fR, \fB\-\-delete\fP"
  45 Delete the specified partitions or all partitions.
  46 .IP "\fB\-g\fR, \fB\-\-noheadings\fP"
  47 Do not print a header line.
  48 .IP "\fB\-h\fR, \fB\-\-help\fP"
  49 Print a help text and exit.
  50 .IP "\fB\-l\fR, \fB\-\-list\fP"
  51 List the partitions.  Note that all numbers are in 512-byte sectors.
  52 This output format is DEPRECATED in favour of
  53 .BR \-\-show .
  54 Do not use it in newly written scripts.
  55 .IP "\fB\-o\fR, \fB\-\-output \fIlist\fP"
  56 Define the output columns to use for
  57 .B \-\-show
  58 and
  59 .B \-\-raw
  60 output.  If no output arrangement is specified, then a default set is
  61 used.  Use
  62 .B \-\-help
  63 to get
  64 .I list
  65 of all supported columns.  This option cannot be combined with
  66 .BR \-\-add ,
  67 .B \-\-delete
  68 or
  69 .B \-\-list
  70 options.
  71 .IP "\fB\-P\fR, \fB\-\-pairs\fP"
  72 Output using key="value" format.
  73 .IP "\fB\-n\fR, \fB\-\-nr \fIM:N\fP"
  74 Specify the range of partitions.  For backward compatibility also the
  75 format
  76 .I M-N
  77 is supported.  The range may contain negative numbers, for example
  78 .BI \-\-nr \ :\-1
  79 means the last partition, and
  80 .BI \-\-nr \ \-2:\-1
  81 means the last two partitions.  Supported range specifications are:
  82 .RS 14
  83 .TP
  84 .I M
  85 Specifies just one partition (e.g. \fB\-\-nr\fR
  86 .IR 3 ).
  87 .TP
  88 .I M:
  89 Specifies lower limit only (e.g. \fB\-\-nr\fR
  90 .IR 2: ).
  91 .TP
  92 .I :N
  93 Specifies upper limit only (e.g. \fB\-\-nr\fR
  94 .IR :4 ).
  95 .TP
  96 .IR M:N \ or
  97 .TQ
  98 .I M-N
  99 Specifies lower and upper limits (e.g. \fB--nr\fR
 100 .IR 2:4 ).
 101 .RE
 102 .IP "\fB\-r\fR, \fB\-\-raw\fP"
 103 Use the raw output format.
 104 .IP "\fB\-s\fR, \fB\-\-show\fP"
 105 List the partitions.  All numbers (except SIZE) are in 512-byte
 106 sectors.  The output columns can be rearranged with the
 107 .B \-\-output
 108 option.
 109 .IP "\fB\-t\fR, \fB\-\-type \fItype\fP"
 110 Specify the partition table type
 111 .IR aix ,
 112 .IR bsd ,
 113 .IR dos ,
 114 .IR gpt ,
 115 .IR mac ,
 116 .IR minix ,
 117 .IR sgi ,
 118 .IR solaris_x86 ,
 119 .IR sun ,
 120 .I ultrix
 121 or
 122 .IR unixware .
 123 .IP "\fB\-v\fR, \fB\-\-verbose\fP"
 124 Verbose mode.
 125 .SH EXAMPLES
 126 .TP
 127 partx \-\-show /dev/sdb3
 128 .TQ
 129 partx \-\-show --nr 3 /dev/sdb
 130 .TQ
 131 partx \-\-show /dev/sdb3 /dev/sdb
 132 All three commands list partition 3 of /dev/sdb.
 133 .TP
 134 partx \-\-show \- /dev/sdb3
 135 Lists all subpartitions on /dev/sdb3 (the device is used as
 136 whole-disk).
 137 .TP
 138 partx \-o START -g --nr 5 /dev/sdb
 139 Prints the start sector of partition 5 on /dev/sdb without header.
 140 .TP
 141 partx \-o SECTORS,SIZE /dev/sda5 /dev/sda
 142 Lists the length in sectors and human-readable size of partition 5 on
 143 /dev/sda.
 144 .TP
 145 partx \-\-add --nr 3:5 /dev/sdd
 146 Adds all available partitions from 3 to 5 (inclusive) on /dev/sdd.
 147 .TP
 148 partx \-d --nr :-1 /dev/sdd
 149 Removes the last partition on /dev/sdd.
 150 .SH SEE ALSO
 151 .BR addpart (8),
 152 .BR delpart (8),
 153 .BR fdisk (8),
 154 .BR parted (8),
 155 .BR partprobe (8)
 156 .SH AUTHORS
 157 .MT dave@gnu.org
 158 Davidlohr Bueso
 159 .ME
 160 .br
 161 .MT kzak@redhat.com
 162 Karel Zak
 163 .ME
 164 .PP
 165 The original version was written by
 166 .MT aeb@cwi.nl
 167 Andries E. Brouwer
 168 .ME .
 169 .SH AVAILABILITY
 170 The partx command is part of the util-linux package and is available from
 171 .UR ftp://\:ftp.kernel.org\:/pub\:/linux\:/utils\:/util-linux/
 172 Linux Kernel Archive
 173 .UE .