Re: is booting an OS without power cycling a host possible?

[Jordan Uggla]

On Sat, Mar 17, 2012 at 11:33 AM, Peter Van Wieren <address@hidden> wrote:
> P.S. Why would I want to do this?  Answer: I threw my old USB keyboard in the 
> trash, and replaced it with a new one.  It was all well and good, until I 
> found that the new keyboard doesn't work at all during the BIOS or GRUB 
> stages -- the new keyboard only works after the OS has been booted.  Thus if 
> I change the default option in grub.conf to "B" and something doesn't work, 
> my host will become completely useless until such a time as I can locate a 
> 2002 era USB keyboard -- which in theory should work in the BIOS and GRUB 
> stages.

This goal is better accomplished using the grub-reboot utility which
will change grub's default for one boot only. Note that for
grub-reboot to work you need to set GRUB_DEFAULT=saved in
/etc/default/grub and re-run grub-mkconfig.

-- 
Jordan Uggla (Jordan_U on irc.freenode.net)