mckinley@csvax.cs.ukans.edu (11/13/90)
I have installed SCO Xenix 2.3.2 on a i386 before and had it recognize the alternate floppy (1) as being a 3 1/2 high density drive, but cannot repeat what I did. Can anybody clue me in on how to tell the OS about the other drive's type? -- ---------------------------------------------------------------- Chuck McKinley mckinley@csvax.cs.ukans.edu
ge@dutlru1.tudelft.nl (Ge van Geldorp) (11/16/90)
In article <1990Nov12.234521.3394@csvax.cs.ukans.edu> mckinley@csvax.cs.ukans.edu writes: >I have installed SCO Xenix 2.3.2 on a i386 before and had it >recognize the alternate floppy (1) as being a 3 1/2 high >density drive, but cannot repeat what I did. Can anybody clue >me in on how to tell the OS about the other drive's type? Having received this information recently from some kind netters (thanks, guys!) I suppose it is my turn to pass it on. I assume that during startup you see both drives listed in the list of devices (two %floppy lines there). Then, the only thing which remains to be done is add the devices to the /dev directory. You can do this by executing commands like: ln /dev/rfd196ds18 /dev/rfd1135ds18 ln /dev/rfd1135ds18 /dev/rfd1 ln /dev/fd196ds18 /dev/fd1135ds18 ln /dev/fd1135ds18 /dev/fd1 This works because both 96 tpi (1.2M 5.25 in) and 135 tpi (1.44M 3.5 in) drives are 80 track drives. Ge van Geldorp. ge@dutlru2.tudelft.nl ...!uunet!hp4nl!dutlru2.tudelft.nl!ge
aryeh@eddie.mit.edu (Aryeh M. Weiss) (11/16/90)
In article <1990Nov12.234521.3394@csvax.cs.ukans.edu> mckinley@csvax.cs.ukans.edu writes: >I have installed SCO Xenix 2.3.2 on a i386 before and had it >recognize the alternate floppy (1) as being a 3 1/2 high >density drive, but cannot repeat what I did. Can anybody clue >me in on how to tell the OS about the other drive's type? >-- >---------------------------------------------------------------- >Chuck McKinley mckinley@csvax.cs.ukans.edu There are two things: (1) you must enter the info into your cmos and reboot. This can be done via the cmos(HW) command. CMOS byte location 0x10 is the floppy disk setup the high-order 4-bits (nybble) is the first (A:) drive and the low-order is the second (B:). Say cmos 0x10 to view the floppy byte. You can change the value via cmos 0x10 0x24 which would set the floppy configuration for the A: drive to 5.25 high density and B: to 3.5 high density. The nybble values are: 0=no drive, 1=5.25 low density, 2=5.25 high, 3=3.5 low, 4=3.5 high. Then reboot the system. (2) you must use the /dev/fd1135ds18 device. Check /etc/default/tar and /etc/default/msdos for the default drives used for tar and dos commands. You can link (via ln) various names to these devices. --