CFDISK(8) System Administration CFDISK(8) NAME cfdisk - display or manipulate a disk partition table SYNOPSIS cfdisk [options] [device] DESCRIPTION cfdisk is a curses/slang-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) instead. 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) and lsblk(8) in a very comfortable and rich way. If you want to remove an old partition table from a device, use wipefs(8). OPTIONS -h, --help Display help text and exit. -L, --color[=when] Colorize the output; enabled by default. The optional argument when can be auto, never or always. If the when argument is omitted, it defaults to auto. -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. COMMANDS The commands for cfdisk can be entered by pressing the corresponding key (pressing Enter after the command is not necessary). Here is a list of the available commands: b 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. d Delete the current partition. This will convert the current partition into free space and merge it with any free space imme- diately surrounding the current partition. A partition already marked as free space or marked as unusable cannot be deleted. h Show the help screen. n 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 "KiB"). q Quit the program. This will exit the program without writing any data to the disk. t Change the partition type. By default, new partitions are cre- ated as Linux partitions. W 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 parti- tions by using partprobe(8) or partx(8), or by rebooting the system. 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 dis- play the next (previous) set of partitions by moving down (up) at the last (first) partition displayed on the screen. All commands can be entered with either uppercase or lowercase letters (except for Write). When in a submenu or at a prompt for entering a size, you can hit the ESC key to return to the main menu. COLORS Implicit coloring can be disabled by creating the empty file /etc/ter- minal-colors.d/cfdisk.disable. See terminal-colors.d(5) for more details about colorization configura- tion. cfdisk does not support color customization with a color-scheme file. SEE ALSO fdisk(8), sfdisk(8), parted(8), partprobe(8), partx(8) AUTHOR Karel Zak <email@example.com> The current cfdisk implementation is based on the original cfdisk from Kevin E. Martin (firstname.lastname@example.org). AVAILABILITY The cfdisk command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux March 2014 CFDISK(8)
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