It appears from the screenshot the panic is occurring because the initramfs /init script is failing to find and mount the real root file- system.
You can drop to a busybox shell in the initramfs by adding a kernel- command line option manually in the GRUB boot menu. Tap Esc key to get to the GRUB menu, highlight the default entry, press 'e' to edit it, navigate down to the line beginning "linux ..." and add the option "break=premount" then press Ctrl+X (or F10) to immediately boot with this change. This should drop you into the busbyox initramfs shell so you can investigate where the root-fs is. Start with "cat /proc/cmdline" and then verify the root= device actually exists. There are other points to break= at; On an working system identify them with: grep maybe_break /usr/share/initramfs-tools/init -- 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 linux package in Ubuntu: Confirmed 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/linux/+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