Free space on boot partition for Linux Mint

A weird bug in 2025, Linux Mint is still not able to remove old kernels after upgrading to new ones…

So an error message like “Free Space 0 bytes” or “low disk space on boot” may appear.

Open the program “Disk Utility”, open the “boot” section, and view old kernels :

You can see herre 133 and 134, but initially I got also 127, 128, 129, 130, 131, 132… wow!

So I ran sudo apt autoremove in the Terminal, and it cleaned the boot partition only.

It removes all the old kernels, excerpt the last 2.

I had this trick from an 2019 article about Ubuntu-based problems, (still valid many years after!) and it worked.

Best,

David.