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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1829805 Title: Lubuntu Eoan Daily Image fails to boot after install on KVM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1829805/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs