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PARTX(8)		     System Administration		      PARTX(8)

NAME
       partx  -	 tell the Linux kernel about the presence and numbering of on-
       disk partitions

SYNOPSIS
       partx [-a|-d|-s] [-t TYPE] [-n M:N] [-] disk

       partx [-a|-d|-s] [-t TYPE] partition [disk]

DESCRIPTION
       Given a device or disk-image, partx tries to parse the partition	 table
       and list its contents.  It optionally adds or removes partitions.

       The  disk  argument  is optional when a partition argument is provided.
       To force scanning a partition as if it were a whole disk	 (for  example
       to list nested subpartitions), use the argument "-".  For example:

	      partx --show - /dev/sda3

       This will see sda3 as a whole-disk rather than a partition.

       This is not an fdisk program -- adding and removing partitions does not
       change the disk, it just tells the kernel about the presence  and  num‐
       bering of on-disk partitions.

OPTIONS
       -a, --add
	      Add  the specified partitions, or read the disk and add all par‐
	      titions.

       -b, --bytes
	      Print the SIZE column in bytes  rather  than  in	human-readable
	      format.

       -d, --delete
	      Delete the specified partitions or all partitions.

       -g, --noheadings
	      Do not print a header line.

       -h, --help
	      Print a help text and exit.

       -l, --list
	      List the partitions.  Note that all numbers are in 512-byte sec‐
	      tors.  This output format is DEPRECATED  in  favour  of  --show.
	      Don't use it in newly written scripts.

       -o, --output list
	      Define  the  output columns to use for --show and	 --raw output.
	      If no output arrangement is specified, then  a  default  set  is
	      used.  Use --help to  get list of all supported columns.

       -P, --pairs
	      Use key="value" output format.

       -n, --nr M:N
	      Specify  the  range  of  partitions.  For backward compatibility
	      also the format <M-N> is supported.  The range may contain nega‐
	      tive  numbers,  for example "--nr :-1" means the last partition,
	      and "--nr -2:-1" means the last two partitions.  Supported range
	      specifications are:

	      <M>    Specifies just one partition (e.g. --nr 3).

	      <M:>   Specifies lower limit only (e.g. --nr 2:).

	      <:N>   Specifies upper limit only (e.g. --nr :4).

	      <M:N>  or	 <M-N>	Specifies  lower  and  upper limits (e.g. --nr
		     2:4).

       -r, --raw
	      Use the raw output format.

       -s, --show
	      List the partitions.  All numbers (except SIZE) are in  512-byte
	      sectors.	The output columns can be rearranged with the --output
	      option.

       -t, --type type
	      Specify the partition table type -- aix,	bsd,  dos,  gpt,  mac,
	      minix, sgi, solaris_x86, sun, ultrix or unixware.

       -v, --verbose
	      Verbose mode.

EXAMPLES
       partx --show /dev/sdb3

       partx --show --nr 3 /dev/sdb

       partx --show /dev/sdb3 /dev/sdb
	      All three commands list partition 3 of /dev/sdb.

       partx --show - /dev/sdb3
	      Lists  all  subpartitions	 on  /dev/sdb3	(the device is used as
	      whole-disk).

       partx -o START -g --nr 3 /dev/sdb
	      Prints the start sector  of  partition  5	 on  /dev/sda  without
	      header.

       partx -o SECTORS,SIZE /dev/sda5 /dev/sda
	      Lists the length in sectors and human-readable size of partition
	      5 on /dev/sda.

       partx --add --nr 3:5 /dev/sdd
	      Adds all	available  partitions  from  3	to  5  (inclusive)  on
	      /dev/sdd.

       partx -d --nr :-1 /dev/sdd
	      Removes the last partition on /dev/sdd.

SEE ALSO
       addpart(8), delpart(8), fdisk(8), parted(8), partprobe(8)

AUTHORS
       Davidlohr Bueso <dave@gnu.org>
       Karel Zak <kzak@redhat.com>

       The original version was written by Andries E. Brouwer <aeb@cwi.nl>.

AVAILABILITY
       The  partx  command  is part of the util-linux package and is available
       from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

util-linux			 February 2011			      PARTX(8)
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