I have installed Ubuntu 12.04 with Windows 7 as dual-boot. Today I decided to upgrade Windows 7 to Windows 8 on the other partition. I read on some forums that I would most likely need a liveUSB to repair grub after upgrading Windows, so I could boot into Ubuntu again. After installing Windows, I used the live-cd to repair Boot-manager using the program "boot-repair".
However I still cannot get access to Ubuntu and furthermore, according to GParted, the partition with Ubuntu 12.04 is seen as unallocated space (!). Did I do something wrong, did I somehow remove Ubuntu? Since I have not done any data back up before Windows upgrade, I want to access to Ubuntu, without having to re-install it. Could someone look at my url of boot-repair, and give me suggestions what I could do?
PS: I have used testdisk program, but it fails to recognize actual size of Ubuntu partition and thus I didn't proceed.