Okay, so I was running Ubuntu 11.10 with a dm-crypt/LUKS encrypted file-system and just tried to update to 12.04 with the Update Manager.
It downloaded all the necessary packages and started installing them and suddenly got this error with libc6 : I'm upgrading to Ubuntu 12.04, and the installation is stuck at preparing libc6
Because of this, I had a reboot in the middle of the upgrade because it clearly seemed to have completely crashed.
After that, I can no longer boot Ubuntu. It asks me for the password to open the encrypted partition, says it's successful and I get the boot screen with the dots looping over and over again. The recovery mode doesn't work at all.
I tried booting on a 12.04 live CD to check if my partition was still there. It is but I can't seem to open it. (I don't know if the partition is corrupted or if it's because the live CD is unable to open it).
Anyway, I'm stuck and I fear I might have to format and reinstall everything (which I do not want to do).
Doesn't anybody have any pointers? Any tips? Any help would be greatly appreciated at this point. Thanks.