Comment 79 for bug 1357093

Ian Weisser, the issue is covered by the title of this bug report, anyway. If 'Unattended-Upgrade::Remove-Unused-Dependencies "true";' is used, U-U removes extra kernels, even if new kernels are installed by Software Updater in 16.04. In 14.04 (and in 12.04 I suppose) it does not work due to bug Bug #1439769. So running 'apt-get autoremove' in 14.04/12.04 may not have the desired effect. Anyway, the point of this bug report was that old kernels should be autoremoving so that administator does not have to be concerned of /boot getting full, so I think another package should be added as being affected, too.

How does installing kernel header packages (which do normally get installed anyway) prevent marking kernel packages as 'auto'? I do not see that happening in 16.04 at least. linux-header packages do not depend on linux-image packages besides linux-header packages may itself be marked 'auto'.