Fixing a broken Grub2 Bootloader after hard drive upgrade

13 11 2010

I recently replaced the hard drive in my laptop. I used Acronis True Image Home 2011 to clone the old hard drive to the new one. It increased the sizes of the partitions proportionatly and made the drive bootable. So far so good.

In addition to Windows 7 I have Ubuntu 10.10 dual booted using Grub2.

Windows 7 booted just fine after the upgrade but Ubuntu would not boot and dropped into busybox with the following error

/dev/disk/by-uuid/xxxx does not exist
dropping to shell

Where xxxx is a long number called a UUID

Because the Linux partition was now 20GB larger than before it had a new UUID which did not match what Ubuntu expected.  Since the introduction of Grub2 Ubuntu boots using Read the rest of this entry »

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