I had Ubuntu 14.10 installed, but somehow after installing updates my screen started flickering, I could not access anything so I had to reinstall Ubuntu.
First of all, I had separate partitions for the system and /home, since I've heard that this is a good idea, you can reinstall without losing your account and files.
But, after installation finished I expected to see my old user-accounts in the login window but not, nothing there. So I had to login with the new account that I created during installation.
After login in eith that account I can browse to the /home directory and there i can see my accounts, locked with a key-sign.
Maybe its important to mention that I had to install 14.04, not 14.10, could that be the issue?
How do I reactivate my old accounts?