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Date:      Wed, 4 Oct 2006 14:55:45 -0400
From:      John Baldwin <jhb@freebsd.org>
To:        Ian FREISLICH <if@hetzner.co.za>
Cc:        freebsd-current@freebsd.org
Subject:   Re: boot/loader broken?
Message-ID:  <200610041455.45991.jhb@freebsd.org>
In-Reply-To: <E1GUzzS-000Hao-MI@hetzner.co.za>
References:  <E1GUzzS-000Hao-MI@hetzner.co.za>

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On Wednesday 04 October 2006 02:12, Ian FREISLICH wrote:
> John Baldwin wrote:
> > On Tuesday 03 October 2006 09:00, Ian FREISLICH wrote:
> > > Hi
> > > 
> > > After a build/install today, I can't boot my boxes:
> > > 
> > > BTX loader 1.00  BTX version is 1.01
> > > Consoles: internal video/keyboard
> > > BIOS drive C: is disk0
> > > BIOS 633kB/2096000kB available memory
> > > 
> > > FreeBSD/i386 bootstrap loader, Revision 1.1
> > > (ianf@testbed, Tue Oct  3 08:22:43 SAST 2006)
> > >                                                                            
>      
> > > can't load 'kernel'
> > > 
> > > Type '?' for a list of commands, 'help' for more detailed help.
> > > OK ls
> > > open '/' failed: input/output error
> > > OK lsdev
> > > cd devices:
> > > disk devices:
> > >     disk0:   BIOS drive C:
> > > pxe devices:
> > > 
> > > I don't know what else I can get of interest from this interface.
> > > It's happened to 2 of my test servers.  They rebooted fine before
> > > the upgrade.
> > 
> > What drive controller do they have?  Try backing out the recent commits to 
> > sys/boot/i386/btx/btx/btx.S in case they cause it.
> 
> It's an Adaptec 2410SA.  I tried ru's suggestion and the old loader works.
> 
> Some time between:
> 
> -r-xr-xr-x  1 root  wheel  245760 Sep 26 12:03 /boot/loader.working
> -r-xr-xr-x  1 root  wheel  245760 Oct  3 12:31 /boot/loader.broken
> 
> 1.41 of sys/boot/i386/btx/btx/btx.S breaks the loader.

Try www.freebsd.org/~jhb/patches/btx_fix.patch

I misused leal, the scale is a multiplicative factor in gas, not a shift 
count.

-- 
John Baldwin



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