Comment 26 for bug 1089195

I created a high level tool called linux-purge to recover system when this problem appears.

In this case you would run
sudo linux-purge --fix
(It may let you choose which kernel to purge interactively.)

The script can be used for automatic removing of old kernels, if run as cron job or as systemd script (even with older Ubuntu releases). It can be used for checklist based interactive kernel removing, too. It took me a lot of time and effort to write and test that versatile script to save your time and effort. Therefore I have not published the script yet, but I am looking for to get something in return by crowd funding.

Please see here for more information:
https://www.bountysource.com/issues/38300038-feature-request-the-command-should-work-like-this

If you have a better idea on how to share the expenses, please tell me.