2005-05-02 15:01:42 +02:00
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.TH FDISK 8
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.SH NAME
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fdisk \- partition a hard disk [IBM]
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.SH SYNOPSIS
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\fBfdisk\fR [\fB\-h\fIm\fR]\fR [\fB\-s\fIn\fR]\fR [\fIfile\fR]\fR
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.br
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.de FL
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.TP
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\\fB\\$1\\fR
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\\$2
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..
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.de EX
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.TP 20
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\\fB\\$1\\fR
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# \\$2
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..
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.SH OPTIONS
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.FL "\fB\-h" "Number of disk heads is \fIm\fR"
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.FL "\fB\-s" "Number of sectors per track is \fIn\fR"
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.SH EXAMPLES
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.EX "fdisk /dev/hd0" "Examine disk partitions"
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.EX "fdisk \-h9 /dev/hd0" "Examine disk with 9 heads"
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.SH DESCRIPTION
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.PP
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When \fIfdisk\fR starts up, it reads in the partition table and displays
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it.
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It then presents a menu to allow the user to modify partitions, store the
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partition table on a file, or load it from a file. Partitions can be marked
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as
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2005-08-22 14:56:02 +02:00
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\s-1MINIX 3\s-1,
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2005-05-02 15:01:42 +02:00
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DOS or other, as well as active or not.
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Using \fIfdisk\fR is self-explanatory.
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However, be aware that
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repartitioning a disk will cause information on it to be lost.
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Rebooting the system \fIimmediately\fR
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is mandatory after changing partition sizes and parameters.
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2005-08-22 14:56:02 +02:00
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\s-1MINIX 3\s-1,
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2005-05-02 15:01:42 +02:00
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\&\s-2XENIX\s0, \s-2PC-IX\s0, and \s-2MS-DOS\s0 all have different
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partition numbering schemes.
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Thus when using multiple systems on the same disk, be careful.
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.PP
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Note that
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2005-08-22 14:56:02 +02:00
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\s-1MINIX 3\s-1,
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2005-05-02 15:01:42 +02:00
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unlike
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\&MS-DOS ,
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cannot access the last sector in a partition with an odd number of sectors.
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The reason that odd partition sizes do not cause a problem with
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\s-2MS-DOS\s0 is that \s-2MS-DOS\s0 allocates disk space in units of
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512-byte sectors, whereas
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2005-08-22 14:56:02 +02:00
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\s-1MINIX 3\s-1
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2005-05-02 15:01:42 +02:00
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uses 1K blocks.
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\fIFdisk\fR has a variety of other features that can be seen by typing \fIh\fR.
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.PP
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.I Fdisk
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normally knows the geometry of the device by asking the driver. You can use
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the \fB\-h\fP and \fB\-s\fP options to override the numbers found.
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.SH "SEE ALSO"
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.BR part (8).
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