On my freshly upgraded ubuntu 19.04 system, trying to cleanbuild any snapcraft.yaml that includes 'base: core18' appears to fail with modprobe: FATAL: Module msr not found in directory /lib/modules/5.0.0-13-generic Here's a log: $ snapcraft cleanbuild Creating snapcraft-merely-kind-ox Starting snapcraft-merely-kind-ox Waiting for a network connection... Network connection established Get:1 http://security.ubuntu.com/ubuntu xenial-security InRelease [109 kB] ... core 16-2.38.1 from Canonical✓ installed snapcraft 3.4.1 from Canonical✓ installed ./ ./snapcraft.yaml Using 'snapcraft.yaml': Project assets will be searched for from the 'snap' directory. Support for 'multipass' needs to be set up. Would you like to do that it now? [y/N]: y snapd is not logged in, snap install commands will use sudo multipass (beta) 0.6.1 from Canonical✓ installed Waiting for multipass... Launching a VM. launch failed: modprobe: ERROR: ../libkmod/libkmod.c:586 kmod_search_moddep() could not open moddep file '/lib/modules/5.0.0-13-generic/modules.dep.bin' modprobe: FATAL: Module msr not found in directory /lib/modules/5.0.0-13-generic An error occurred with the instance when trying to launch with 'multipass': returned exit code 2. Ensure that 'multipass' is setup correctly and try again. Error: not found Stopping local:snapcraft-merely-kind-ox An error occurred when trying to copy files using 'lxd': returned exit code 1. The snapcraft.yaml in this case is exactly https://github.com/raulojeda22/Bash-Shell-RPG/blob/master/snap/snapcraft.yaml plus 'base: core18': name: bash-shell-rpg version: '1.1' summary: A 2D open world action RPG to play on the command line. # 79 char long summary description: | This is a pretty cool RPG game with weapons, enemies and an objective, find your lost crown and your 2 childs in the middle of a forest with a bunch of creatures and interesting objects. grade: stable confinement: strict architectures: [ all ] base: core18 apps: bash-shell-rpg: command: bash $SNAP/RPG.sh parts: bash-shell-rpg: plugin: dump source: https://github.com/raulojeda22/Bash-Shell-RPG.git install: | chmod +x RPG.sh lxc is working fine, I'm able to run both 16.04 and 18.04 guests. In those guests, I can trigger the same msr problem manually: root@demo-ubu1804:~# modprobe msr modprobe: ERROR: ../libkmod/libkmod.c:586 kmod_search_moddep() could not open moddep file '/lib/modules/5.0.0-13-generic/modules.dep.bin' modprobe: FATAL: Module msr not found in directory /lib/modules/5.0.0-13-generic So... why's it trying to do modprobe?