Error 21 when booting up...???

[Steve]

On Wed, 14 Oct 2009 21:06:39 +0100, Larry Shields <larryesu at charter.net>  
wrote:

> Steve wrote:
>> On Wed, 14 Oct 2009 16:58:39 +0100, Larry Shields <larryesu at charter.net>
>> wrote:
>>
>>
>>> *I have a 250 gb seagate HD, I had 9.04 on it, then I upgraded to 9.10
>>> beta, when it first came out the updates keep'd coming it worked just
>>> fine until last week...I started to boot the system up, but all that I
>>> get is Error 21...
>>>
>>> Might anyone know how I can fix this problem, so it will boot up  
>>> again...
>>>
>>> I have used knoppix 5.1 to view the hard drive, I can see everything on
>>> it, so my stuff is still there...
>>>
>>> But I am in need of help if possible to fix the error 21 problem that I
>>> now have...
>>>
>>> Any help on the would be very appreciated...
>>>
>>> Thanks Larry
>>> *
>>>
>>>
>> Try http://ubuntuforums.org/archive/index.php/t-977673.html
>>
>>
> *Thanks Steve - for the site info...
>
> What I did instead of using the livecd,  for it would not let me switch
> to the root user, to authorizes  it, that from what I no it will not let
> you...
>
> Anyway I then used Knoppix 5.1, everything worked fine, using grub, so
> when I at the grub prompt typed
> grub> root (hd0,0)  It came up with this:
>     Filesystem type is ext2fs, partition type 0x83
> The I used this command:
> grub> setup (hd0) it the said this:
> Checking if "/boot/grub/stage1" exists...NO
> Checking if "/grub/stage1" exists...NO
>
> So it looks as though I have lost stage1 in the boot process...
>
> Do you how I can fix that...???
>
> Thanks Larry
> *
>
I would go with SuperGrub http://www.supergrubdisk.org/ I always have a  
copy of this around, its saved the day on many occasions.

-- 
Steve