Re: option for "boot to kernel.old"

[Maxim Sobolev <sobomax@xxxxxxxxxxx>]

Paul Herman wrote:
> On Sat, 13 Nov 2004, Matthew Dillon wrote:
>
> >    And, even better... if someone does a 'make installkernel' more 
> > then once
> >    without rebooting it shouldn't overwrite kernel.old the second 
> > time, and
> >    if someone does a 'make installkernel' while *running* kernel.old it
> >    shouldn't overwrite kernel.old either.
>
>
> While we're throwing out ideas...  :-)
>
> I've always had on my wishlist a way to optionaly have /kernel "expire" 
> in such a way that if the timestamp on /kernel is older than, say, 10 
> minutes, then boot from /kernel.old.
>
> The option to "testboot" /kernel would be enormously useful if you don't 
> have physical access to a machine and the newly installed kernel for 
> some reason doesn't boot.  Just have someone hit the reset button 10 
> minutes later.
>
> I think the only real hacking needed would be to make /boot/loader aware 
> of the CMOS clock.  It's been something I've been looking to do, just 
> haven't gotten around to it.

man 8 nextboot is in order.

-Maxim