Date: Sat, 1 Jun 1996 21:21:49 -0700 (PDT) From: "Jonathan M. Bresler" <jmb> To: chuckr@Glue.umd.edu (Chuck Robey) Cc: FreeBSD-Questions@FreeBSD.org Subject: Re: Booting up Message-ID: <199606020421.VAA29156@freefall.freebsd.org> In-Reply-To: <Pine.OSF.3.91.960601232202.25722D-100000@ginger.eng.umd.edu> from "Chuck Robey" at Jun 1, 96 11:25:22 pm
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Chuck Robey wrote:
>
> On Sat, 1 Jun 1996, Jonathan M. Bresler wrote:
>
> > Chuck Robey wrote:
> > >
> > > I need to get the bootup process working. My setup is 3 scsi disks:
> > > sd0: dedicated to FreeBSD, /, 48M swap (b), and /usr
> > > sd1: also dedicated to FreeBSD, 48M swap (b), and /usr2 (e)
> > > sd2: The small one, 200M dedicated to dos.
> >
> > are all three on the primary scsi controller?
> > i have an ncr on the motherboard nd a second ncr pci card,
> > but i can only boot from disks connected to the first (motherboard)
> > ncr controller
>
> Yeah, just one controller, a Tyan one (obviously oem'ed from NCR).
> All three have partition tables made by dos, but only one has
> an active dos partition. Actually, that's not true, FreeBSD made the
> partition tables on the first 2 disks, dos only did the third one.
does bteasy offer you the choice of the other two disks??
you should see an option "F5 disk 2" or some such.
BUT looking at the code, it appears that bteasy-1.7 does not
allow you to boot from the third or higher disk ;(
rather if your BIOS reports 3 disks, bteasy-1.7 behaves as
if there is only one disk! fie!
cmp BYTE PTR DS:NumDisks,2 ; is the second disk present?
je have2disks ; have disk 2
lea SI,Base+defaultMsg ; prepare 'Default' message
or DH,DH ; no disk 2; do we have valid partitions
jne prompt ; several partitions, wait for reply
int 18h ; no partitions, load ROM basic
jmp Menu ; repeat, if no ROM basic
have2disks:
lea SI,Base+FkeyMsg ; print 'F5'
call Output ; now SI points to "disk 2\nDefault..."
more over bteasy-1.7 relies upon BIOS int 13 to select which
drive it will read the partition (dos partitions aka slices
*not* unix partitions) table from. i dont know if the drive
parameter (register dl) can legally point to a drive other
than the first or second drive. van gilluwe does not say ;(
so.....rearrange your drives. put dos on either the first or
second drive. exit your fstab to match the changes. if you
have dump scripts dont forget to edit them as well.
jmb
--
Jonathan M. Bresler FreeBSD Postmaster jmb@FreeBSD.ORG
FreeBSD--4.4BSD Unix for PC clones, source included. http://www.freebsd.org/
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