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.

--
Robert Nordier

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