Date: Tue, 2 Dec 2003 18:17:12 -0500 From: Garance A Drosihn <drosih@rpi.edu> To: sparc64@FreeBSD.ORG Subject: Booting from alternate disk in sparc64 Message-ID: <p06002022bbf2bed61931@[128.113.24.47]>
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Well, I started to write up one observation, and in the process
found out that the situation was a bit different than what I
thought.
I now have two drives in my Ultra-10, and wanted to boot off
the second drive. I got to the open-firmware prompt. Typing
"boot disk0" boots up off the first disk, with the messages:
- - - - [start]
Rebooting with command: boot disk0
Boot device: /pci@1f,0/pci@1,1/ide@3/disk@0,0 File and args:
>> FreeBSD/sparc64 boot block
Boot path: /pci@1f,0/pci@1,1/ide@3/disk@0,0:a
Boot loader: /boot/loader
Console: OpenFirmware console
FreeBSD/sparc64 bootstrap loader, Revision 1.0
[etc]
- - - - [end]
So I tried typing 'boot disk1' at the open-firmware prompt. It
starts up about the same, except that it has 'disk@1,0' where
the above has 'disk@0,0', and then it hangs before printing out
the message 'Console: OpenFirmware console'.
Well, I always thought it was completely dead there, and I would
drop back to the openfirmware prompt and try again. But while it
does stop there for a minute and 15 seconds, apparently it will
continue on and boot OK if I'm just patient enough to wait for it.
What I *was* going to say in this message, was that I had an
alternate trick for getting to the second disk. I'd type
'boot disk0', and then hit the space key to fall into the boot
loader. I would type "show currdev", and it displayed:
/pci@1f,0/pci@1,1/ide@3/disk@0,0:a
so I would type in:
unload
set currdev=/pci@1f,0/pci@1,1/ide@3/disk@1,1:a
load boot/kernel/kernel
boot
(ie, just changing disk@0,0 to disk@1,1). And with that, it
does boot up off the second disk. Of course, now I imagine
that 'disk@1,1' isn't all that different than 'disk@1,0'.
So I don't know why there's such a long pause there when I
try "boot disk1", but it does seem to work...
Do others have multi-boot setups on their sparc64 machines?
--
Garance Alistair Drosehn = gad@gilead.netel.rpi.edu
Senior Systems Programmer or gad@freebsd.org
Rensselaer Polytechnic Institute or drosih@rpi.edu
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