An error occurred while mounting /proc/bus/usb. Press S to skip mounting or M for manual recovery.
If you’re getting this at boot, it is probably a left-over from forcing USB support in VirtualBox in Karmic and before. In Lucid Lynx 10.04, this line is no longer needed, and in fact causes this minor error – though, in some cases, it is actually rendering the system unbootable.
The solution is actually very simple and easy to implement, and merely requires removing or commenting out a line in the fstab file. To do so, open a terminal and enter:
sudo gedit /etc/fstab
Find the line “none /proc/bus/usb usbfs devgid=125,devmode=664 0 0” and either remove it or add a hash (#) to the beginning of the line to turn it into a harmless comment.
If you are in the worst case scenario and can’t get to your desktop at all, then at the command-line (which you can get to in Recovery mode) you’ll have to open fstab in a CLI-based text editor like nano with the command:
sudo nano /etc/fstab
(If using nano, Ctrl+X to exit, Y to confirm saving the changes, leaving the file name as “fstab“, then press Enter)
That’s it – your system should now boot fine.
Did this information make your day? Did it rescue you from hours of headache? Then please consider making a donation via PayPal, to buy me a donut, beer, or some fish’n’chips for my time and effort! Many thanks!