update-grub help

[Dave Howorth]

Goh Lip wrote:
> On 05/26/2010 11:14 PM, Goh Lip wrote:
>> On 05/26/2010 10:10 PM, Dave Howorth wrote:
>>
>>> So I tried to boot from the revised grub.cfg and it failed with "error:
>>> no such device" so I've commented out lines in
>>> /usr/lib/grub/grub-mkconfig_lib so as not to generate search lines in
>>> grub.cfg as described in
>>> http://sourceforge.net/apps/mediawiki/bootinfoscript/index.php?title=Boot_Problems:search
>>>
>>> But it still doesn't work. It now says "you need to load the kernel
>>> first" and my googling hasn't answered that yet. The relevant stanza in
>>> grub.cfg is:
> 
> Wrote to you separately as I do not want to mess up the previous 
> message.  If you noticed the reference to the launchpad bugs, I was one 
> of the 'reporters' of the bugs. I can assure you the bug has been 
> resolved long long ago.
> 
> What you did in removing the search line is wrong and you can rectify 
> this at karmic by doing again "sudo grub-install /dev/sda" and try again 
> if this boots to opensuse.

OK, it's also easily fixable by removing the three # characters I added
to the file :)

> But it's best you recheck the uuid (by sudo 
> blkid) with the grub menu. (partly why I want the previous message to go 
> first).

I already did that, as that page suggested. The UUID in the search
command was identical to that reported by blkid. That's why I did the patch.

> Also, I want to stress that using "search --no-floppy --xxxxxxxx" is far 
> better than using (hdx,y)/vmlinuz-xx xxxx  or set root=(hdx,y) which was 
> used by grub-legacy and is prone to errors as you have found out.

Yes, I can see that if it works it's much better. The question is how to
get it to work?

Anyway, tomorrow I'll try what you suggested in your other message.

Thanks again,
Dave