Installed Ubuntu in my MacBook. It worked fine at first. Installed additional drivers and updated the restarted. Now, all I get is a command line. I can't boot back into the USB stick I originally used to install Ubuntu. Help?
I had a similar problem after choosing the
nvidia_current driver. I had my background picture displayed after logging in, but nothing else except for an error message.
In my case, it turned out that the
nvidia_current driver had been blacklisted, so it was not loading correctly. To check if that's your problem, run the following:
grep nvidia_current /etc/modules /etc/modprobe.d/*
I had a file called
blacklist-local.conf containing the line
blacklist nvidia_current. Since that was the only line in the file, I used
sudo to remove it, and everything worked.
I've raised bug #1083998 to complain that the Additional Drivers utility didn't spot the blacklist.