When your ubuntu distribution is installed using the LVM partition system, you can run into an issue while performing updates and upgrades of the distribution because, at some points, the
/boot partition becomes too small. This results in messages of this type:
Not enough free disk space The upgrade has aborted. The upgrade needs a total of 617 M free space on disk '/boot'. Please free at least an additional 282 M of disk space on '/boot'.
When this happens,
- check the content of your
ls /boot) and remove all unused kernels. This can be performed with
sudo apt autoremove --purgeor, if you have old kernels and images, this sometimes require that you remove them one by one by removing the
linux-images-...packages along with the remaining files in
- if this is still not enough, edit (as sudo) the file
/etc/initramfs-tools/initramfs.confand change the line
sudo update-initramfs -u -k all sudo apt autoremove --purge
This should be enough to solve the problem.