FLFO(7-SysV) RISC/os Reference Manual FLFO(7-SysV)
NAME
flfo - floppy disk formatter
SYNOPSIS
/etc/flfo [-m] [-v] [-f ] [-i #] device-name
DESCRIPTION
Formatting of floppy disks is done with the program
/etc/flfo.
The device name should be the character device for the
floppy volume to be formatted. For example, use one of the
following:
/dev/rfd/fd0t00vol low capacity disk
or
/dev/rfd/fd0t01vol high capacity disk
The switches are defined as follows:
-v Print out disk parameters (number of sectors,
tracks, heads)
-f Perform formatting of media. If this switch
is not used, no actual formatting is per-
formed but a new volume header is written to
the floppy.
-i # Set sector interleave to #. Recommended
interleave is 5.
-m Prompt for the floppy mode parameters.
If the -m switch is used, the user may input the values for
the following parameters (see the file
/usr/src/uts/mips/master.d/fl for typical values):
Number of cylinders per disk
Number of bytes per sector
Number of sectors per track
Number of drive heads (surfaces)
Transfer rate
Normal gap length
Format gap length
Motor on delay
Motor off delay
Head settle delay in ms
Head step rate in ms
Head load time in 2 ms units
Head unload time in 16 ms units
MFM encoding (non-zero)
High capacity drive (non-zero)
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FLFO(7-SysV) RISC/os Reference Manual FLFO(7-SysV)
If the floppy has not been previously formatted or the sec-
tor size is not 512 bytes, the floppy driver will return the
message:
FLOPPY: Cannot get volume header: using default
Formatting will proceed normally. This message just informs
the user that the floppy is not in MIPS format.
FILES
/dev/rfd/fd0t00vol
/dev/rfd/fd0t01vol
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