On Thu, Nov 19, 2009 at 3:06 AM, Rick Stevens <ricks@xxxxxxxx> wrote: > On 11/18/2009 10:33 AM, Mr. Teo En Ming (Zhang Enming) wrote: >> >> Hi All, >> >> 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. >> >> 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. >> >> So I think the filesystems are restored properly. So I think it is the >> problem with MBR, sfdisk dump output restoration, or GRUB. Is there a >> problem with restoring data of a 500 GB harddisk to a 1 TB harddisk? > > Well, let's see...the geometry between the two disks are going to be > different so the partition table's going to be screwed up. That may > cause an issue with grub. It's always dangerous to use block-level > backups and restores when the drives are of different sizes or geometries. > > I'd recommend you boot off the DVD in rescue mode, then use fdisk and > the other tools to verify that the partition tables are in good shape. > You should also probably fsck each filesystem just to make sure. Once > all that's done, you may have to rebuild the grub environment: > > chroot /mnt/sysimage > grub-install /dev/sda (or whichever disk it is) > exit (gets out of the chroot) > exit (gets out of the rescue boot) > > Pop the DVD out and try to boot again. That may fix it. > ---------------------------------------------------------------------- > - Rick Stevens, Systems Engineer ricks@xxxxxxxx - > - AIM/Skype: therps2 ICQ: 22643734 Yahoo: origrps2 - > - - > - We have enough youth, how about a fountain of SMART? - > ---------------------------------------------------------------------- > > -- > fedora-list mailing list > fedora-list@xxxxxxxxxx > To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list > Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines > Hi, If I want to use grub-install, I have to mount the partitions on the restore harddisk and then chroot into the mount? Because earlier I have used the interactive grub prompt method without mounting filesystems on the restore harddisk and chrooting. -- 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 -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
