Fstab edit crashed system
- Boot your system using a live USB
- Use Disks to determine the name of your system partition (probably
sda1) - Open a terminal window
- Mount the system partition by typing the command
sudo mount /dev/sd__ /mntwhere sd___ is sda1 or whatever the system partition is - Fix fstab using the nano editor
sudo nano /mnt/etc/fstab. Probably just delete the lines you added, or do whatever you need to reverse your changes - Reboot