The reasons to why old kernels are not intentionally being marked for autoremoval (as of 2008-11-04) is because it was considered too dangerous and apt has an exception to not tag linux-image-* packages for autoremoval because we had no idea which kernels actually worked for a system.
However, I had thought that this problem had been addressed using last- good-boot for grub after runlevel 2 was reached, here: https://wiki.ubuntu.com/KernelTeam/removing-old-kernels But since the wiki hasn't been updated since '08, maybe that is not true anymore. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1460396 Title: Old kernels filling up /boot, causing failed updates To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1460396/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs