FORMAT.1
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操作系统开发
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C/C++
- FORMAT(1) Minix Programmer's Manual FORMAT(1)
- NAME
- format - format a PC floppy diskette
- SYNOPSIS
- format [-v] device [media-size [drive-size]]
- DESCRIPTION
- Format allows a user with read-write permission to device to format a
- floppy. Either one of the special floppy devices must be used, see
- fd(4), or an automatic device may be used with the size of the floppy
- specified on the command line. Two sizes must be given when formatting a
- low density diskette in a high density drive. For example:
- format /dev/at1
- format /dev/fd1 1200
- format /dev/fd1 360 1200
- The first two commands format a 1.2M diskette, the last formats a 360k
- diskette in a 1.2M drive. A 1.44M drive knows when it's dealing with a
- low density floppy, so all these commands format a 720k diskette:
- format /dev/fd0 720
- format /dev/fd0 720 1440
- format /dev/ps0
- No sizes may be specified when using a special floppy device, a size must
- be specified when using an automatic device.
- OPTIONS
- -v Verify the process by reading each track after formatting it.
- Formatting is normally blind, the controller has no idea whether it
- succeeds or not. Use -v on a new box of cheap diskettes, or on a
- diskette that may have gone bad. Verifying will increase formatting
- time by 50%.
- SEE ALSO
- mkfs(1), fd(4).
- DIAGNOSTICS
- Numbers will be printed on standard output to show that it is busy. The
- locations of bad sectors are printed on standard error when verifying.
- The exit code is zero unless there are too many bad spots.
- AUTHOR
- Kees J. Bot (kjb@cs.vu.nl)
- 1