Re: [OpenFirmware2.4] Can't boot on cdrom ('loader: unrecognized client program format')
On Wed, 2006-02-08 at 10:58 +0100, Arnaud Vandyck wrote:
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> Arnaud Vandyck wrote:
> > Benjamin Herrenschmidt wrote:
> >
> >>>On Tue, 2006-02-07 at 14:55 +0100, Arnaud Vandyck wrote:
> >
> > [...]
> >
> >>>>0 > boot ide1/disk@0:0,\install\powerpc\vmlinux
> >>>>
> >>>>OF says 'loader: unrecognized client program format'
> >>>
> >>>Oldworld... it might be able to boot from CD a coff file... do the CD
> >>>contains the vmlinux.coff image ?
>
> Strange!...
> 0 > boot ide1/disk@0:0,\install\powerpc\vmlinuz-coff.initrd
> unable to open: ide1/disk@0:0,\install\powerpc\vmlinuz-coff.initrd ok
>
> grrr!
>
> 0 > dev ide1/disk@0:0
> can't find device ok
>
> aaaaaaaaaaaa! What did I do?! Did I messed up the OF? I reseted it
> Alt-Command-P-R but no way! :'(
One thing that OS X used to do to CD-boot on those machines (at least
earlier versions of OS X that could support those) was to install
patches for OF in nvram that "fix" the cd-booting.... of course, you
lose them if you cmd-opt-P-R...
It's possible that a recent version of MockOS will restore them, that or
trying to boot form an OS X install CD... those are in fact fake macos
boot CDs (that is, they contain a "System" file, a bit like miboot)
which will update the nvram and reboot right away.
Ben.
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