PARTX("8") manual page
Table of Contents
partx - tell the Linux kernel about the presence and numbering
of on-disk partitions
partx [-a | -d | -s | -u] [-t TYPE] [-n M:N] [-] disk
partx [-a | -d | -s | -u] [-t TYPE] partition [disk]
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 "-" (hyphen-minus). For example:
- partx --show - /dev/sda3
This
will see sda3 as a whole-disk rather than a partition.
The partx is not an
fdisk program en 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 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.
- -h, --help
- Display
help text and exit.
- -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.
- -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.
This option cannot be combined with --add, --delete, or --list options.
- -P, --pairs
- Output
using key="value" format.
- -n, --nr M:N
- Specify the range of partitions. For
backward compatibility also the format MenN 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
- MenN 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.
- 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.
addpart(8)
, delpart(8)
, fdisk(8)
,
parted(8)
, partprobe(8)
Davidlohr Bueso
Karel Zak
The original version was written by Andries E. Brouwer
- LIBBLKID_DEBUG=0xffff
- enables
debug output.
The partx command is part of the util-linux package
and is available from Linux Kernel Archive
Table of Contents
![[Go to CFHT Home Page]](/images/cfht-icon.gif){kind=icon}
Man Pages 
Back to Software Index 
Manpage Top Level