Ubuntu crash after update: Mount of root filesystem failed

Problem:

The version is 9.10. After an update, the system cannot be restarted. Black screen prompt: Mount of root filesystem failed. A maintenance shell will now started ....

Solution:

1. Insert the Ubuntu installation disk into the optical drive and select "Try Ubuntu without any changes ".

2. Go to the Ubuntu trial and open a terminal. Enter the following command:

1:Mkdir/mnt/Ubuntu

2:Mount/dev/sda7/mnt/Ubuntu

3:Gedit/mnt/Ubuntu/etc/fstab

The third command opens the corrupted "boot file ". The second command needs to change sda7 according to the partition where your Ubuntu is located. You can view it by running fdisk-L.

3. Open another terminal and run gedit/etc/fstab. Opened a good boot file.

4. copy the file content opened in step 3 to the file content opened in step 2. Remember to delete the file content in step 2.

5. Save and restart.

6. Success!