Ubuntu Revert to Previous Kernel

Temporary Solution

Hold the Shift key when Ubuntu is loading, choose Advanced options for Ubuntu from the Grub screen and load the kernel version.

NOTE: This works for Ubuntu VM running in Virtualbox as well.

NOTE: This change is not permanent, as it will revert back to latest kernel on restart.

Permanent Solution

To make the change permanent, edit /etc/default/grub

sudo nano /etc/default/grub

Change/add the following configuration

# GRUB_DEFAULT=0
GRUB_DEFAULT=saved
GRUB_SAVEDEFAULT=true

Run sudo update-grub

Restart Ubuntu.

Hold the Shift key when Ubuntu is loading, choose Advanced options for Ubuntu from the Grub screen and load the kernel version.

The kernel version is saved and shall be used/loaded after each restart.

References:

• https://www.gnu.org/software/grub/manual/grub/html_node/Simple-configuration.html