Grub broken.

[Chris Andrew]

"This device apparently does not exist".

Does anyone know why this has happened?  I'm reluctant to do a long
install just to replicate the error.

Thanks again, Auke.

Cheers,

Chris.

2008/8/12 Kok, Auke <sofar at foo-projects.org>:
> Chris Andrew wrote:
>> Hi, all.
>>
>> Thanks, Auke,
>>
>>> root (hd0,0)
>>> setup (hd0)
>>> reboot
>>
>> did the job and it now boots.  For some strange reason I am now
>> getting an fcsk error 8 on /dev/hda2.
>>
>> I tried /sbin/fsck -y /dev/hda2, boot it says that my superblock is
>> missing or corrupt. Before I installed Lunar, I did an exhaustive HDD
>> check, so I'm sure my HDD is ok.
>
> ew. fortunately there are backup superblocks. To find out where they are, run
> `mkfs.ext3` with the -n option so that it displays their location (but doesn't
> actually format the filesystem):
>
> # mkfs.ext3 -n /dev/hda2
>
> then use fsck.ext3 with one of those numbers to see if it can be recovered:
>
> # fsck.ext3 -b $BLOCKNUMBER /dev/hda2
>
>
> warning: if the superblock is bad it's quite likely something trashed the
> filesystem alltogether (like installing grub in the wrong location).
>
> Auke
>
>
>>
>> Can anyone help me get past this?  Failing that, I will try 1 fresh install.
>>
>> Many thanks,
>>
>> Chris.
>>
>> 2008/8/12 Kok, Auke <sofar at foo-projects.org>:
>>> Chris Andrew wrote:
>>>> Can anyone tell me what I should type at the Grub > prompt to see what
>>>> my menu.1st looks like?
>>> Ive seen this bug and it's sometimes not even needed to fix a menu.lst file. At
>>> the failed boot prompt you can `reinstall` grub on the fly:
>>>
>>>> root (hd0,0)
>>>> setup (hd0)
>>>> reboot
>>> this will work if your /boot partition is /dev/sda and you had/want grub in the
>>> mbr. if the above `setup` command works then grub will find your menu.lst file
>>> again and hopefully it'll work
>>>
>>> if not then you can boot as follows:
>>>
>>>> root (hd0,0)
>>>> kernel 2.6.2x root=/dev/sda2
>>>> boot
>>> and then try to use lunar to fix it (lin -c grub, lin -c linux-2.6)
>>>
>>> Auke
>>> _______________________________________________
>>> Lunar mailing list
>>> Lunar at lunar-linux.org
>>> http://foo-projects.org/mailman/listinfo/lunar
>>>
>>
>>
>>
>
> _______________________________________________
> Lunar mailing list
> Lunar at lunar-linux.org
> http://foo-projects.org/mailman/listinfo/lunar
>



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