cfdisk - display or manipulate a disk partition table
is a curses-based program for partitioning any block device. The
default device is /dev/sda
Note that cfdisk
provides basic partitioning functionality with a
user-friendly interface. If you need advanced features, use fdisk(8)
Since version 2.25 cfdisk
supports MBR (DOS), GPT, SUN and SGI disk
labels, but no longer provides any functionality for CHS
(Cylinder-Head-Sector) addressing. CHS has never been important for Linux, and
this addressing concept does not make any sense for new devices.
Since version 2.25 cfdisk
also does not provide a 'print' command any
more. This functionality is provided by the utilities partx(8)
in a very comfortable and rich way.
If you want to remove an old partition table from a device, use
- -h, --help
- Display help text and exit.
- -L, --color[=when]
- Colorize the output. The optional argument when can be auto,
never or always. If the when argument is omitted, it
defaults to auto. The colors can be disabled, for the current
built-in default see --help output. See also the COLORS
- -V, --version
- Display version information and exit.
- -z, --zero
- Start with an in-memory zeroed partition table. This option does not zero
the partition table on the disk; rather, it simply starts the program
without reading the existing partition table. This option allows you to
create a new partition table from scratch or from an sfdisk-compatible
The commands for cfdisk
can be entered by pressing the corresponding key
after the command is not necessary). Here is a list of
the available commands:
- Toggle the bootable flag of the current partition. This allows you to
select which primary partition is bootable on the drive. This command may
not be available for all partition label types.
- Delete the current partition. This will convert the current partition into
free space and merge it with any free space immediately surrounding the
current partition. A partition already marked as free space or marked as
unusable cannot be deleted.
- Show the help screen.
- Create a new partition from free space. cfdisk then prompts you for
the size of the partition you want to create. The default size is equal to
the entire available free space at the current position.
The size may be followed by a multiplicative suffix: KiB (=1024), MiB
(=1024*1024), and so on for GiB, TiB, PiB, EiB, ZiB and YiB (the
"iB" is optional, e.g. "K" has the same meaning as
- Quit the program. This will exit the program without writing any data to
- Sort the partitions in ascending start-sector order. When deleting and
adding partitions, it is likely that the numbering of the partitions will
no longer match their order on the disk. This command restores that
- Change the partition type. By default, new partitions are created as
- Dump the current in-memory partition table to an sfdisk-compatible script
The script files are compatible between cfdisk, fdisk,
sfdisk and other libfdisk applications. For more details see
It is also possible to load an sfdisk-script into cfdisk if there is
no partition table on the device or when you start cfdisk with the
--zero command-line option.
- Write the partition table to disk (you must enter an uppercase W). Since
this might destroy data on the disk, you must either confirm or deny the
write by entering `yes' or `no'. If you enter `yes', cfdisk will
write the partition table to disk and then tell the kernel to re-read the
partition table from the disk.
The re-reading of the partition table does not always work. In such a case
you need to inform the kernel about any new partitions by using
partprobe(8) or partx(8), or by rebooting the system.
- Toggle extra information about a partition.
- Up Arrow, Down Arrow
- Move the cursor to the previous or next partition. If there are more
partitions than can be displayed on a screen, you can display the next
(previous) set of partitions by moving down (up) at the last (first)
partition displayed on the screen.
- Left Arrow, Right Arrow
- Select the preceding or the next menu item. Hitting Enter will
execute the currently selected item.
All commands can be entered with either uppercase or lowercase letters (except
rite). When in a submenu or at a prompt, you can hit the
key to return to the main menu.
Implicit coloring can be disabled by creating the empty file
for more details about colorization
does not support color customization with a color-scheme file.
- enables cfdisk debug output.
- enables libfdisk debug output.
- enables libblkid debug output.
- enables libsmartcols debug output.
- use visible padding characters. Requires enabled LIBSMARTCOLS_DEBUG.
Karel Zak <email@example.com>
The current cfdisk implementation is based on the original cfdisk from Kevin E.
The cfdisk command is part of the util-linux package and is available from