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
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 the disk.
- 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 match.
- Change the partition type. By default, new partitions are
created as Linux partitions.
- Dump the current in-memory partition table to an
sfdisk-compatible script file.
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
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