I wrote:
> Peter Jeremy wrote:
>
> > Mark Blackman <t...@rcru.rl.ac.uk> wrote:
> > >FWIW, I've done it under 2.2.7 by
> > >
> > >1) installing booteasy on both wd0 *AND* wd2
> > >2) altering the boot.config to
> > > 1:wd(2,a)kernel
> >
> > This works for an a.out 3.0 kernel, but the old bootloader can't handle
> > ELF kernels, so this isn't a usable solution.
>
> The new boot blocks, installed by
>
> disklabel -B $DRIVE
>
> do handle (both a.out and) ELF kernels, despite looking very similar
> to the old a.out-only ones. The idea is to provide a fallback
> means of booting a kernel in either format.
>
> So using a /boot.config statement like the above (or hitting any
> key before seeing the /boot/loader prompt, to get the old "boot:"
> prompt instead), is a recommended workaround for any temporary
> /boot/loader problems.
I should have added that, where more than one version of FreeBSD
is installed on the same machine, updating the default boot disk to
the latest boot blocks is also suggested.
A /boot.config like
1:wd(2,a)
would then pass control directly to a non-default copy of /boot/loader.
--
Robert Nordier
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