OK, I upgraded my Ubuntu yesterday. Everything went smooth, but in the end my cab arrived. It led to disaster as when I reached my office, my Laptop would not boot. It just showed a screen of Grub with the command line.
So, I google’d it and found a nice solution here.
The problem was I needed a live CD for that, so I downloaded Ubuntu 12.04, made a Live USB with the help of LiLi Live USB creator.
I booted the system, but the problem did not ended there. The problem was that my Hard drive was encrypted and I needed some way to mount that before I could re-install grub all over once again.
So, I followed these steps to mount my Encrypted Disk.
sudo apt-get install lvm2
- Mount your hard drive using cryptsetup
sudo cryptsetup luksOpen /dev/sda2 backup
- Your Hard drive will be mounted.