From owner-freebsd-current  Tue May 25 12:50:27 1999
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To: Mike Smith <mike@smith.net.au>
Cc: current@freebsd.org
Subject: Re: Boot process 
Date: Tue, 25 May 1999 21:49:41 +0200
From: Mark Murray <mark@grondar.za>
Sender: owner-freebsd-current@FreeBSD.ORG
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> > I am having some problems with a machine I recently rebuilt; I suspect
> > either the drive geometry or something else in the boot process. The
> > machine has to be booted "manually".
> > 
> > Situation: I installed FreeBSD 3.1 on a 4G SCSI disk that had had
> > Current on it before (CURRENT snaps wouldn't boot). At the
> > F1 FreeBSD
> > F5 Disk 1
> > prompt, the machine just beeps, and does not reboot. (The other
> > disk is a 2G SCSI)
> 
> Which disk are you trying to boot from?

Default: da0(s1)

> > Drive geometry is 64 heads, 32 sectors and N(>1024) tracks. The
> > a partition is the first and it is only 32MB. Disklabel looks
> > OK.
> > 
> > If I play around (Hit F5 or space or enter), I get "Invalid partition"
> > errors. Hitting enter at that stage gets me a Boot: prompt. The only
> > thing that gets an actial boot is typing 0:da(1,a)/boot/loader. Then
> > both disks are visible and fine. Both disks have had fdisk -b and
> > disklabel -B done to them.
> >
> > Any clues?
> 
> Sounds like the layout of the first disk is not compatible with your 
> BIOS.  What's the slice scheme look like?

Not sure _exactly_ what you want; fdisk says: (copying)

:
cylinders=4340 heads=64 sectors/track=32 (2048 blocks/cyl)
:
The data for partition 1 is:
sysid 165,(FreeBSD/....
	start 32, size 8888288, (4339 Meg), flag 80 (active)
		beg: cyl 0/head 1/sector 1;
		end: cyl 1023/head 32/head 63;
The data for partition 2 is:
<UNUSED>
:

I've seen some funny things in fdisk, but they usually work. ("Funny"
== cyl-is-strange-due-to-11-bit-limit).

M
--
Mark Murray
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