1 |
walt wrote: |
2 |
> On 07/05/2012 04:20 PM, Dale wrote: |
3 |
> |
4 |
>> I'm waiting on new/more docs myself. I want to know not only how to |
5 |
>> upgrade but how to fix if it pukes on my keyboard. Hopefully other than |
6 |
>> chroot'in in and all. |
7 |
> There are basically only two ways that grub2 or grub1 can fail: |
8 |
> |
9 |
> First, you reboot and you don't even see a grub prompt because |
10 |
> the grub part of your boot sector is broken in some way. I think |
11 |
> the only practical way is to reinstall grub to the boot sector |
12 |
> of your boot disk, which probably involves booting from another |
13 |
> medium like a rescue CD, etc. |
14 |
> |
15 |
> Second, you reboot and see a valid grub shell prompt but your |
16 |
> list of boot selections is missing for some reason. |
17 |
> |
18 |
> In that case I've been able to bail out very simply by typing |
19 |
> various grub shell commands until I re-discover the right disk |
20 |
> in case the BIOS disk numbering has changed for some reason. |
21 |
> |
22 |
> You do have to know the grub shell commands pretty well to get |
23 |
> away with that, though. The way to learn them is to hit 'c' |
24 |
> at the grub menu to drop into the grub shell mode and keep |
25 |
> hitting 'tab' to see a list of available commands wherever |
26 |
> you happen to be at the time. Just like legacy grub. |
27 |
> |
28 |
> |
29 |
> |
30 |
> |
31 |
|
32 |
|
33 |
The way it broke for me was when I updated grub but didn't update the |
34 |
MBR. I found that out after I rebooted. It was in one of those ewarn |
35 |
messages thingys. It's nice to see those after the fact tho. ;-) |
36 |
|
37 |
Dale |
38 |
|
39 |
:-) :-) |
40 |
|
41 |
-- |
42 |
I am only responsible for what I said ... Not for what you understood or how you interpreted my words! |