On Fri, Jul 09, 2010 at 17:07:53, Hugo Villeneuve wrote:
>
> On Fri, Jul 09, 2010 at 11:20:51AM +0200, Ariel Burbaickij wrote:
> > Hello all,
> > following situation:
> > I installed OpenBSD 4.7 on Toshiba Libretto 70 4.7 using hard drive donor
> > installation method,
> > i.e. I used the original Libretto harddrive and installed OpenBSD 4.7 from
> > install47.iso
> > on it using different machine. Space is left on the disk for hybernation
> > information to be saved.
> > Once installed back to Libretto 70 I am able to boot but only up to
> > following point (last 3 messages from dmesg and message from kernel):
> > vscsi0 at root
> > scsibus0 at vscsii0: 256 targets
> > softraid0 at root
> > kernel: integer divide fault trap, code=0
> > Stopped at cpu_switchto+0x76
>
>
> My Compaq 433 20MB upgraded to 486DX2 stop one instruction before
> that. So it's probably unrelated.
>
> http://eintr.net/temporaire/GENERIC.47.issue.full.txt
>
>
> I thought it was a combinaison of low memory (originaly 12MB and
> then 20MB) and the archaic hardware being left behind so I haven't
> made an proper bug yet.
>
> But the machine works with a slimed-down 4.7 kernel. (One where
> every non-necessary driver is commented.)
I self reply to this very old email for prosperity and because I
was asked off list how I boot GENERIC on my Compaq Presario 433
(486).
I figured which drivers to disable via trial and error and it has
worked every release since. I can boot GENERIC by disabling:
it
schsio
Disabling one or the other doesn't work. Both need to be disabled.
See boot(8/i386) and boot_config(8) for details on how to do that.
dmesg with trace/ps:
http://eintr.net/temporaire/486-issues.txt
I don't know if that would work with the original Toshiba Libretto
70, but it works for my Compaq Presario 433 and I've been told for
an IBM ValuePoint 486DX2/66.
[Note: GENERIC compiled without it,schsio works fine. GENERIC with
every drivers, that attach to isa, not in RAMDISK disabled and it
and/or schsio re-enabled fails. Beside this, my Compaq Presario 433
works fine. It's my only OpenBSD computer running 24/7 and
occasionally does NFS/Diskless server duty.]
