сообщить ядру о наличии и нумерации разделов на диске (tell the kernel about the presence and numbering of on-disk partitions)
Имя (Name)
partx - tell the kernel about the presence and numbering of
on-disk partitions
Синопсис (Synopsis)
partx [-a|-d|-P|-r|-s|-u] [-t type] [-n M:_N_] [-] disk
partx [-a|-d|-P|-r|-s|-u] [-t type] partition [disk]
Описание (Description)
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.
Параметры (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. 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.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.
Окружение (Environment)
LIBBLKID_DEBUG=all
enables libblkid debug output.
Примеры (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 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.
