After many hours diving down rabbit holes it turns out this is due to a major change in the behaviour of update-initramfs introduced by Debian in July 2018 which made its way into the Ubuntu archive end of april 2019.
01:02 <TJ-> Right! initramfs-tools had a MAJOR import from Debian with "initramfs-tools (0.133ubuntu1)" April 29th; I've worked back through the changes by Debian to "initramfs-tools (0.132) unstable" of 26th July 2018, which contains "[f39625a] update-initramfs: Make "-k all" take over other initramfs images" and looking at that commit seems to indicate it is the cause https://salsa.debian.org/kernel-team/initramfs- tools/commit/f39625afd6ba6c1aa2027286dc3ef1c933da14e0 Running the script with shell logging shows that when Calamares initramfs module calls with: # update-initramfs -k all -c -t We get: ... + break + [ 0 -ne 0 ] + [ -z c ] + [ all = all ] + get_sorted_versions + linux-version list + linux-version sort --reverse + read -r version + test -e /boot/initrd.img-5.0.0-17-generic + read -r version + version_list= + verbose Available versions: + [ 0 = 1 ] + [ -z ] + verbose Nothing to do, exiting. + [ 0 = 1 ] + exit 0 Because there is currently no /boot/initrd.img-$VERSION the version_list is empty. This shouldn't be a concern when we're using the "-c" create option so it looks to be a bug in the logic. The workaround for Lubuntu calamares installer configuration is to make the file exist before calling it: touch /boot/initrd.img-$(uname -r) Until initramfs-tools is fixed. -- 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/1829805 Title: Lubuntu Eoan Daily Image fails to boot after install on KVM Status in initramfs-tools package in Ubuntu: Confirmed Status in linux package in Ubuntu: Invalid Bug description: Context: The live environment appears to function properly and install proceeds as expected with no noticeable errors. Expected results: After a system reboot the virtual machine enters the graphical environment Actual Results: After rebooting the virtual machine a kernel panic error screen appears. I will attempt to attach the screenshot after submitting this bug report. The collected data is from the live environment as the installed environment will not boot. lubuntu@lubuntu:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu Eoan Ermine (development branch) Release: 19.10 Codename: eoan lubuntu@lubuntu:~$ apt-cache policy grub2 grub2: Installed: (none) Candidate: 2.02+dfsg1-12ubuntu2 Version table: 2.02+dfsg1-12ubuntu2 500 500 cdrom://Lubuntu 19.10 _Eoan Ermine_ - Alpha amd64 (20190519) eoan/universe amd64 Packages 500 http://archive.ubuntu.com/ubuntu eoan/universe amd64 Packages ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: grub2 (not installed) ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6 Uname: Linux 5.0.0-13-generic x86_64 ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 CasperVersion: 1.407 CurrentDesktop: LXQt Date: Tue May 21 00:30:39 2019 LiveMediaBuild: Lubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190519) SourcePackage: grub2 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1829805/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
