Booting with a previous kernel

Booting with a Previous Kernel

If your system fails to start after a kernel update, you can try booting with an earlier kernel version. Here’s how:

1. Boot into GRUB

Turn on your laptop and repeatedly tap the Esc key as it starts up.

Stop pressing it once the Star Labs logo disappears — this should bring up the GRUB menu, as shown below:

2. If You Press Esc Too Many Times

If you see the screen below, you’ve gone one step too far.

At the GRUB command line, type:

Then press Enter, and tap Esc again until the menu appears.

If that doesn’t work, simply restart the laptop and repeat step 1.

3. Select a Previous Kernel

Use the arrow keys to highlight “Advanced options for Ubuntu”, then press Enter.

You’ll see a list of available kernels.
When troubleshooting, it’s usually best to choose the oldest version (listed near the bottom) — just make sure to select one without “(recovery mode)” at the end.

4. Boot the Selected Kernel

Press Enter to start your laptop using the kernel you selected.