Re: [gentoo-user] Re: GRUB2 migration

[Dale <rdalek1967@gmail.com>]

walt wrote:
> On 07/05/2012 04:20 PM, Dale wrote:
>  
>> I'm waiting on new/more docs myself.  I want to know not only how to
>> upgrade but how to fix if it pukes on my keyboard.  Hopefully other than
>> chroot'in in and all.
> There are basically only two ways that grub2 or grub1 can fail:
>
> First, you reboot and you don't even see a grub prompt because
> the grub part of your boot sector is broken in some way. I think
> the only practical way is to reinstall grub to the boot sector
> of your boot disk, which probably involves booting from another
> medium like a rescue CD, etc.
>
> Second, you reboot and see a valid grub shell prompt but your
> list of boot selections is missing for some reason.
>
> In that case I've been able to bail out very simply by typing
> various grub shell commands until I re-discover the right disk
> in case the BIOS disk numbering has changed for some reason.
>
> You do have to know the grub shell commands pretty well to get
> away with that, though.  The way to learn them is to hit 'c'
> at the grub menu to drop into the grub shell mode and keep
> hitting 'tab' to see a list of available commands wherever
> you happen to be at the time.  Just like legacy grub.
>
>
>
>


The way it broke for me was when I updated grub but didn't update the
MBR.  I found that out after I rebooted.  It was in one of those ewarn
messages thingys.  It's nice to see those after the fact tho.  ;-) 

Dale

:-)  :-) 

-- 
I am only responsible for what I said ... Not for what you understood or how you interpreted my words!