I have upgraded Ubuntu 11.10 to 12.04 . After that I am trying to start the system and got the following error. I think that the system crashed.
mountall: /lib/x86_64-linux-gnu/lib.so.6: version 'GLIBC_2.14' not found (required) by /lib/libply.so.2 General error mounting filesystems. A maintenace shell will now be started. CONTROL-D will terminate this shell and reboot the system. root@xxxx-VirtualBox`#