boot/loader broken?

[Ian FREISLICH]

John Baldwin wrote:
> 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 at 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 t
o 
> > > 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.

Fixes the problem.

Thanks
Ian

--
Ian Freislich