changing grub

[Derek Broughton]

Gary Kirkpatrick wrote:

> On Sat, Mar 28, 2009 at 4:43 PM, Derek Broughton
> <derek at pointerstop.ca>wrote:
> 
>> So, what you do if you _must_ have Windows first (and can't get a
>> divorce...) is move the Windows stanza _before_ the AUTOMAGIC KERNELS,
>> and then it will always be the first option.
> 
> So if I make a mistake how can I recover? Is there a way to make a back up
> of grub and then use it to get the computer going?  Or if I can't get it
> going again, do I just go ahead and get the divorce anyway, unless she
> seeks treatment for Windows syndrome?

The latter is always best, but short of that:
- make sure you have a copy of the last working grub menu and know where it
is.
- reboot with new menu
- if you've screwed it up so badly that it won't boot, boot with a LiveCD,
mount the partition with /boot on it, copy the working menu.lst over the
one that failed
- reboot
-- 
derek