Re: silo, dual boot, cylinder 0 (was Re: booting at last!)
Adam Di Carlo <adam@onshore.com> writes:
> In message <[🔎] m9bn21priog.fsf@fatneck.cse.msu.edu> you wrote:
> >You can't put a swap partition there. ext2 and ufs have a couple of
> >unused blocks at the beginning, so they coexist with the disk label.
> >I've always used an ext2 partition at the beginning of the disk
> >without problems.
> Cool; that's what I thought and what I had documented.
> Yet, I personally do have a problem which is confusing.
> Install solaris on my ultra5: /dev/hda1 == sunos-root (on cyl. 0)
> /dev/hda2 == swap (shared)
> /dev/hda3 == whole disk
> /dev/hda4 == linux root
> ...
> This all boots fine, into solaris. I can still manage to
> boot into linux via TFTP. Then run silo; after which I can boot into
> silo but the solaris options don't work (even specifying the full
> OpenPROM path, and every possible combination). It always returns the
> error 'Can't find executable kernel/unix', IIRC.
IIRC, there is a bug in silo. It looks in:
/platform/SUNW,Ultra-5_10/
which is empty, rather than in /platform/sun4u.
I thought that Jakub had fixed this, but apparently, he didn't.
Making SUNW,Ultra-5_10 into a symlink should fix it. Then add:
image=1/kernel/unix
label=solaris
solaris
to silo.conf. (Silo gets the architecture string from the OpenPROM.)
You might also try installing silo on the linux partition:
boot=/dev/hda4
and using "boot disk:d" to boot Linux (I think this will work.)
Steve
dunham@cse.msu.edu
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