As for #46, you could have ran `sudo /etc/kernel/postinst.d/apt-auto- removal ; sudo apt-get autoremove --purge` after reboot. I don't know, if you can configure unattended upgrade to do purging, as well.
As for #47, it is the matter of Bug #1458204 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1440608 Title: /etc/kernel/postinst.d/apt-auto-removal wants to remove all kernels except the latest one Status in One Hundred Papercuts: Triaged Status in apt package in Ubuntu: Triaged Status in linux package in Ubuntu: Invalid Bug description: After installing a 3rd kernel currently 3.19.0-12-generic, the /etc/apt/apt.conf.d/01autoremove-kernels file looks normal listing the 3.19.0-11-generic and 3.19.0-12-generic with 3.19.0-10-generic listed to be autoremoved. But once autoremove is completed the machine requests to be rebooted and at that time the /etc/apt/apt.conf.d /01autoremove-kernels file lists the 3.19.0-12-generic and 3.19.0-10-generic kernels. So upon rebooting the 3.19.0-11-generic is requested to be autoremoved leaving only one kernel the latest one 3.19.0-12-generic. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: apt 184.108.40.206ubuntu3 ProcVersionSignature: Ubuntu 3.19.0-12.12-generic 3.19.3 Uname: Linux 3.19.0-12-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17-0ubuntu1 Architecture: amd64 CurrentDesktop: MATE Date: Sun Apr 5 17:03:01 2015 InstallationDate: Installed on 2015-04-02 (3 days ago) InstallationMedia: Ubuntu-MATE 15.04 "Vivid Vervet" - Beta amd64 (20150401) SourcePackage: apt UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/hundredpapercuts/+bug/1440608/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp