GNU cfdisk - a curses-based partition table manipulation program
cfdisk [options] [device]
cfdisk is a disk partition manipulation program, which allows you to
create, destroy, resize, move and copy partitions on a hard drive using
a simple menu-driven interface. It is useful for organising the disk
space on a new drive, reorganising an old drive, creating space for new
operating systems, and copying data to new hard disks. For a list of
the supported partition types, see the --list-partition-types option
displays a help message.
displays the program’s version.
use an arrow cursor, instead of reverse video highlighting, in
case your terminal doesn’t support it.
create a new partition table on the disk. This is useful if you
want to change the partition table type or want to repartition
you entire drive. Note that this does not delete the old table
on the disk until you commit the changes.
sets the default display units to UNIT. A list of possible units
is given below.
displays a list of supported partition types and features.
You can choose in what unit cfdisk should display quantities like
partition sizes. You can choose from sectors, percents, bytes,
kilobytes, etc. Note that one kilobyte is equal to 1,000 bytes, as this
is consistent with the SI prefixes and is used by hard disk
manufacturers. If you prefer to see the sizes in units with binary
prefixes, you should instead select one kilo binary byte (kibibyte),
which is equal to 1,024 bytes. Whatever display unit you have chosen,
you can always enter the quantities in the unit of your choice, for
example 1000000B or 1000kB.
display each size in the most suitable unit from B, kB, MB, GB
B one byte
kB one kilobyte (1,000 bytes)
MB one megabyte (1,000,000 bytes)
GB one gigabyte (1,000,000,000 bytes)
TB one terabyte (1,000,000,000,000 bytes)
KiB one kilo binary byte (1,024 bytes)
MiB one mega binary byte (1,048,576 bytes)
GiB one giga binary byte (1,073,741,824 bytes)
TiB one tera binary byte (1,099,511,627,776 bytes)
s one sector. It depends on the sector size of the disk. You can
use it if you want to see or choose the exact size in sectors.
% one percent from the size of the disk
cyl one cylinder. It depends on the cylinder size.
chs use CHS display units.
There are no known bugs. We are in early stages for development, so be
fdisk(8), mkfs(8), parted(8) The cfdisk program is fully documented in
the info(1) format GNU cfdisk User Manual manual.