in this blog post I will show a little trick to avoid your Ubuntu installation got stuck on GRUB boot menu waiting for you to choose an option after a power failure.
To force Ubuntu boot you can edit your /etc/default/grub with your favourite text editor, e.g. running this command from your terminal:
and then add this line in the file:
Afterwards, remember to run:
Next time your pc will have a power failure it will reboot without getting stuck on GRUB!