[comp.os.minix] booting

kjh@pollux.usc.edu (Kenneth J. Hendrickson) (01/06/91)

In article <1990Dec31.200332.12381@dsuvax.uucp> ghelmer@dsuvax.uucp (Guy Helmer) writes:
>Also, the bootblok.s that's in my copy of MINIX version 1.5 has very
>poor support for booting off 3.5" drives.  It's supposed to support
>booting off a 720K 3.5" drive,

This reminds me ... I cheerfully re-submit this idea about booting:
(I hope it finds its way into an official release.  Please feel free to
test it and fix any bugs, and then post to the net.  I think it is
already bug-free.)

1)	When you create a bootdisk, you definitely know what size disk
	it is.

2)	The boot program on a disk of type X can (and should) know what
	type of disk it exists on, and doesn't need to check!

3)	Other "configuration" routines exist for the kernel - for
	example the hard disk device driver.

Therefore, I submit my configuration routines for bootblok.s, for the
/usr/minix/tools directory.  This configuration is for choosing the type
of disk a boot image is being made on.  It has the advantages that it
doesn't beat the disk drive to death upon boot-up, and booting is
significantly faster.  I have tested it for 360k and 1200k disks - but
not for 720k disks.  1.44M disks are left as an exercise for the
reader.  I didn't actually write any new code - I just did a hack job on
bootblok.s to keep just the revelant portions for each type of disk.

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`
end

-- 
favourite oxymorons:   student athlete, military justice, mercy killing
Ken Hendrickson N8DGN/6       kjh@usc.edu      ...!uunet!usc!pollux!kjh