This is what happens if you use the /dev/PS0 device (ie "b 2 28") - to

read a 720kB floppy you have to use anuther device number: linux doesn't

try to find out what kind of floppy you are using (which seems to be

relatively standard unix practice). Use /dev/ps0 ("b 2 16")
Minor number for floppies are as follows (should be in the FAQ):
nr+4*type, where nr = 0,1,2,3 for A,B etc floppy

type:

1 - 360kB floppy in 360kB drive

2 - 1.2M floppy in 1.2M drive

3 - 360kB floppy in 3.5" drive

4 - 720kB floppy in 3.5" drive

5 - 360kN floppy in 1.2M drive

6 - 720kB floppy in 1.2M drive
Ok, I was lazy: I use "-Wall" for gcc which gives warnings for most

everything, and I didn't correct quite all the warnings. They are easy
Hedrick's patches break with more than one drive: he had only one drive

to test on.  I'll make a new alpha-patch available which should fix most
It doesn't even try right now: I don't know in what format the core-file

should be anyway etc..  I might implement it if somebody tells me what

format gdb expects, or I'll accept patches (the stubs are there already,
Ok, at least the 0.95(a) kernel supports it: I haven't tested it out,

but the reboot system call should be able to reboot the machine, so

automatic shutdown isn't that difficult any more.  Anybody interested in

writing one? Note that the reboot system call needs a lot of magic

numbers (I didn't want any accidental reboots), and can also

disable/enable the three-finger-salute for people who don't like it. 
                Linus