I'm running ubuntu 13.04 on a compaq pressario cq56. After system update unity and terminal will not load. I've read some forums on how to fix the unity problem but without terminal I can't use them, and I've found forums about the terminal issue but cannot fix it without software center which I cannot load.

I can go into root terminal from recovery mode but that seems to be ready only and will not let me install or modify files. Any help I can get to get unity or terminal back would be great. If this isn't possible I'll just try to copy some data to a flash drive and reinstall.