This just happened to me on Xubuntu 15.10 when 4.2.0-11-generic was installed. It wanted to leave me with one kernel. You can refer to these two posts for the detail:
http://ubuntuforums.org/showthread.php?t=2251168&page=4&p=13361806#post13361806 http://ubuntuforums.org/showthread.php?t=2251168&page=4&p=13361833#post13361833 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1440608 Title: /etc/kernel/postinst.d/apt-auto-removal wants to remove all kernels except the latest one To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1440608/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs