NAME

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

SYNOPSIS

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

       partx [-a|-d|-s|-u] [-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 numbering of on-disk partitions.

OPTIONS

       -a, --add
              Add the specified partitions, or read the disk and add all partitions.

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

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

       -u, --update
              Update the specified partitions.

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

       -l, --list
              List  the  partitions.   Note  that  all  numbers  are in 512-byte sectors.  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.

       -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.

       -n, --nr M:N
              Specify  the  range of partitions.  For backward compatibility also the format <M-N> is supported.
              The range may contain negative 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).

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)