(Note that this question is only relevant for well designed clones of the NEC
and Intel chips - lots of broken clones don't support FM mode at all...)
Is it possible from user-space to either:
a) put the linux floppy driver permanently into FM recording mode for all
subsequent requests, or
b) do this temporarily for a per-command basis?
I suspect that b) *might* be possible via a raw command, but the man page for
fdrawcmd doesn't seem to mention being able to change the density bit (bit 6
of the first byte in the command).
Anyone know (without me pulling source apart) whether fdutils supports it -
and even whether the linux floppy driver supports it? (For all I know it may
do something 'broken' like hard-coding the top three flag bits in the first
byte of each command, and ignoring whatever gets sent from user space :)
cheers
Jules
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Hi all,
Hope someone can point me in the right direction. I've been banging at
this thing for months off-and-on and I can't get it to work.
System is running Fedora Core 4, kernel is 2.6.14-1.1644_FC4smp. This is
with fdutils 5.5
I'm trying to format old 8 bit OS9 disks in my 1.44 meg /dev/fd0 drive.
The format is 720k, 80 tracks, 18 sectors, 256 bytes per sector, 2
sides. I'm using 720k media.
I can set the parameters fine:
[root@testbox bin]# setfdprm /dev/fd0 DS DD sect=18 cyl=80 ssize=256
but superformat has never worked for me, no matter what I do I get
output like this:
[root@testbox bin]# ./superformat /dev/fd0
Measuring drive 0's raw capacity
Fatal error while measuring raw capacity
0: 40
1: 01
2: 00
3: 00
4: 00
5: 01
6: 08
if I use regular old fdformat, it works, but it reports the wrong number
of sectors- so maybe it really doesn't work.
Note that I can format the disks in the actual system and transfer
images back and forth just fine. I just can't format them in linux.
thanks
-Mike
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