Re: Urgent Help Needed for Boot Problems After Data Restoration

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On Thu, Nov 19, 2009 at 3:09 AM, M A Young <m.a.young@xxxxxxxxxxxx> wrote:
> On Thu, 19 Nov 2009, Mr. Teo En Ming (Zhang Enming) wrote:
>
>> After restoring data from a backup image set for a 500GB harddisk to a
>> 1000 GB harddisk, I am unable to boot up my F11 OS. I have already
>> restored *both* the MBR backup and the dump output from sfdisk.
>
> It isn't that simple. The MBR tells the OS where to find the next boot
> information on the disk and that will most likely have moved so it won't
> find it.
>
>> What else is missing? I am stuck at a blinking cursor at the top left
>> corner of the screen. GRUB is not loading and I am unable to select
>> any kernel to boot.
>>
>> Using System Rescue CD, I am able to activate all the logical volumes
>> and all the volume groups that were restored. I am also able to mount
>> all the logical volumes and access the restored filesystems.
>
> You need to boot off the rescue disk and reactivate grub from there -
> something like chroot into the disk image and then run grub-install, though
> I forget the exat details.
>
>        Michael Young
>
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Thank you!

-- 
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical
Engineering)
Alma Maters:
(1) Singapore Polytechnic
(2) National University of Singapore
My Primary Blog: http://teo-en-ming-aka-zhang-enming.blogspot.com
My Secondary Blog: http://enmingteo.wordpress.com
My Youtube videos: http://www.youtube.com/user/enmingteo
Email: space.time.universe@xxxxxxxxx
Mobile Phone (Starhub Prepaid): +65-8369-2618
Street: Bedok Reservoir Road
Country: Singapore

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