I am using ubuntu 12 and am unable to use
sudo anymore (it was working a few days ago) but apparently got corrupted somehow. Below is the error I receive when I try using
sudo: unable to stat /etc/sudoers: No such file or directory
sudo: no valid sudoers sources found, quitting
sudo: unable to initialize policy plugin
Besides reusing the ubuntu live cd, is there anything else I can possibly look into in order to fix this?