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:
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.
- -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/.