Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I was trying to upgrade to 12.04 LTS, but the upgrade froze in the process (it was stuck for over 8 hours) and I had to do a hard reboot. Now when I boot up, I get the following:

mountall /lib/x86_64-linux-gnu/ version 'glibc_2.14' not found.

I'm not sure what I need to do from here. Do I need to go back to the previous version? Or can 12.04 still be installed? I don't want to lose any of my files.

I am still new to Linux, so please give detailed step-by-step instructions.

share|improve this question
If you happen to have your files on a separate partition to your system one I'd try again. It's situations like this that taught me to keep /home on a separate partition to / – dibs Oct 29 '12 at 4:12
I can't find an option to try to install the upgrade again. I have found my files, but I still don't know the best option on how to upgrade. – stargazergal Oct 31 '12 at 1:18

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.