Before the days of grub2 in Ubuntu 9.10 and above, cleaning up your boot menu was easy, requiring nothing more than editing the menu.lst file, but the new boot manager doesn't work the same way.

By following these steps, you can effectively boot into Recovery Mode or Safe Graphics Mode in Ubuntu, allowing you to troubleshoot and fix various system issues.

If this doesn't happen, hold Shift at boot to bring up the Grub menu if necessary, then select 'Advanced options' followed by ' (recovery mode)', which will launch Ubuntu in a minimal state, plus ...

Save the file, and then close Gedit. Next time you reboot, Ubuntu will bypass the text grub boot menu and go straight to the LightDM login.

How to repair GRUB2 Boot the affected or test machine from the USB device and click Try Ubuntu. Once the desktop appears, make sure there’s a working network connection and open the terminal window.