I need help. After restoring a disk, it will no longer boot. Even trying to force a boot from the bios, the machine simply restarts every time I try to boot sda. I do have Ubuntu 12.04 on another drive and it does boot and I can see all my files on the unbootable drive, sda. I even tried older back ups and I get the same results. Any help to restore this disk is appreciated.
What method did you use to restore the disk?
Sort of a long story. I have used ReDo for several years. I have been searching for an alternative as ReDo is no longer supported and I tried Active@ LiveCD thinking worst case if it does not work, I have ReDo. Well, Active@ LiveCD failed at the first attempt. Tried again, wrote 100% than failed on sector 1. So I quit and went back to ReDo. No errors recovering from ReDo, except the drive does not boot (system restarts). I am curious if there is a boot sector that got corrupted. Disks shows no errors.
The worst part is I did this all over FireFox. I followed the Launchpad instructions for installing ESR. When the installation failed, I figured I would simply apply my recent backup to get my Fire Fox re-installed.
OK, I booted to the installation CD, installed Boot-Repair, followed all the defaults. I now have a running system. I also have a Grub menu.
Still curious what went wrong. I have to assume the Active@ LiveCD messed with the boot partition. Any ideas?
One more question: Long ago I got instructions from @Spyder on how to remove the grub menu.
sudo chmod -x /etc/grub.d/30_os-prober
sudo update-grub
This worked perfectly, I assume it is still safe to use. Currently gun shy as I have lost some confidence in back ups.