NAME
fdisk - partition a hard disk [IBM]
SYNOPSIS
fdisk [-hm] [-sn] [file]
OPTIONS
-h Number of disk heads is m
-s Number of sectors per track is n
EXAMPLES
fdisk /dev/hd0 # Examine disk partitions
fdisk -h9 /dev/hd0 # Examine disk with 9 heads
DESCRIPTION
When fdisk starts up, it reads in the partition table and
displays it. It then presents a menu to allow the user to
modify partitions, store the partition table on a file, or
load it from a file. Partitions can be marked as MINIX 3,
DOS or other, as well as active or not. Using fdisk is
self-explanatory. However, be aware that repartitioning a
disk will cause information on it to be lost. Rebooting the
system immediately is mandatory after changing partition
sizes and parameters. MINIX 3, XENIX, PC-IX, and MS-DOS all
have different partition numbering schemes. Thus when using
multiple systems on the same disk, be careful.
Note that MINIX 3, unlike MS-DOS , cannot access the last
sector in a partition with an odd number of sectors. The
reason that odd partition sizes do not cause a problem with
MS-DOS is that MS-DOS allocates disk space in units of 512-
byte sectors, whereas MINIX 3 uses 1K blocks. Fdisk has a
variety of other features that can be seen by typing h.
Fdisk normally knows the geometry of the device by asking
the driver. You can use the -h and -s options to override
the numbers found.
SEE ALSO
part(8).