Grub rescue - error: unknown filesystem
I was using Ubuntu 12.04 x64 as a Virtual Box guest. Because I started with it just to do some tests, the VM was created just with 10 GB but grown fast, then I wanted resizing it. Of course, I was a fully noob... No backup before doing it.
After some reading, I thought it would be so simple as:
VBoxManage modifyhd MY_DISK.vdi --resize 81920
Unfortunately, no boot:
error: unknown filesystem. grub rescue>
Then I tried many suggestions, including Boot-Repair as described here: grub rescue after install of Ubuntu 12.04 (dual boot).
Nothing has worked. It seens that my Linux partition isn't there anymore?! Here is the Pastebin with all the information collected by Boot-Repair.
And the last try, the GParted Live CD can't also recover any data, saying that there isn't data on any partition. Well, I should just give up? Or some way to recover this disk?