Ok, so I decided to make a backup of my ubuntu 13.04 system using tar. I was following guide here and I made a backup of my ubuntu installation.
Now, what I don't understand, is how to restore from this backup. Should i just untar this file to newly created partition and repair grub? Because that didn't work. By the way for grub repair I used boot-repair. The thing about restoration is not explained well in the guide in my opinion.
I also found some alternatives like clonezilla and remastersys which isn't supported anymore, alternative for that is relinux, but I really find this tar backup satisfying, just restoration is something still unexplained to me.
Can you please tell how to restore?