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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT | EXAMPLE | AUTHORS | SEE ALSO | REPORTING BUGS | AVAILABILITY |
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PARTX(8) System Administration PARTX(8)
partx - tell the kernel about the presence and numbering of
on-disk partitions
partx [-a|-d|-P|-r|-s|-u] [-t type] [-n M:_N_] [-] disk
partx [-a|-d|-P|-r|-s|-u] [-t type] partition [disk]
Given a device or disk-image, partx tries to parse the partition
table and list its contents. It can also tell the kernel to add or
remove partitions from its bookkeeping.
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 "-"
(hyphen-minus). For example:
partx --show - /dev/sda3
This will see sda3 as a whole-disk rather than as a partition.
partx 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.
-a, --add
Add the specified partitions, or read the disk and add all
partitions.
-b, --bytes
Print sizes in bytes rather than in human-readable form.
By default, sizes are shown in units that are powers of 1024
bytes. The formal abbreviations for these units (KiB, MiB,
GiB, ...) are further shortened to just their first letter: K,
M, G, ....
-d, --delete
Delete the specified partitions or all partitions. It is not
error to remove non-existing partitions, so this option is
possible to use together with large --nr ranges without care
about the current partitions set on the device.
-g, --noheadings
Do not print a header line with --show or --raw.
-l, --list
List the partitions. Note that all numbers are in 512-byte
sectors. This output format is DEPRECATED in favour of --show.
Do not use it in newly written scripts.
-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:-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 the lower limit only (e.g. --nr 2:).
:N
Specifies the upper limit only (e.g. --nr :4).
M:N
Specifies the lower and upper limits (e.g. --nr 2:4).
-o, --output list
Define the output columns to use for --show, --pairs and --raw
output. If no output arrangement is specified, then a default
set is used. Use --help to get list of all supported columns.
This option cannot be combined with the --add, --delete,
--update or --list options.
--output-all
Output all available columns.
-P, --pairs
List the partitions using the KEY="value" format.
-r, --raw
List the partitions using the raw output format.
-s, --show
List the partitions. The output columns can be selected and
rearranged with the --output option. All numbers (except SIZE)
are in 512-byte sectors.
-t, --type type
Specify the partition table type.
--list-types
List supported partition types and exit.
-u, --update
Update the specified partitions.
-S, --sector-size size
Overwrite default sector size.
-v, --verbose
Verbose mode.
-h, --help
Display help text and exit.
-V, --version
Display version and exit.
LIBBLKID_DEBUG=all
enables libblkid debug output.
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 5 /dev/sdb
Prints the start sector of partition 5 on /dev/sdb 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.
Davidlohr Bueso <dave@gnu.org>, Karel Zak <kzak@redhat.com>
The original version was written by Andries E. Brouwer
<aeb@cwi.nl>
addpart(8), delpart(8), fdisk(8), parted(8), partprobe(8)
For bug reports, use the issue tracker
<https://github.com/util-linux/util-linux/issues>.
The partx command is part of the util-linux package which can be
downloaded from Linux Kernel Archive
<https://www.kernel.org/pub/linux/utils/util-linux/>. This page is
part of the util-linux (a random collection of Linux utilities)
project. Information about the project can be found at
⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩. If you have a
bug report for this manual page, send it to
util-linux@vger.kernel.org. This page was obtained from the
project's upstream Git repository
⟨git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git⟩ on
2025-08-11. (At that time, the date of the most recent commit that
was found in the repository was 2025-08-05.) If you discover any
rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page,
or you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a
mail to man-pages@man7.org
util-linux 2.42-start-521-ec46 2025-08-09 PARTX(8)
Pages that refer to this page: addpart(8), cfdisk(8), delpart(8), fdisk(8), findfs(8), resizepart(8), sfdisk(8)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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