package lxd 3.0.3-0ubuntu1~18.04.1 failed to install/upgrade: new lxd package pre-installation script subprocess returned error exit status 1

[Jeremy Bícha]

During upgrade from Ubuntu 18.04 LTS to 20.04 LTS

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: lxd 3.0.3-0ubuntu1~18.04.1
ProcVersionSignature: Ubuntu 4.15.0-121.123-generic 4.15.18
Uname: Linux 4.15.0-121-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.18
Architecture: amd64
Date: Sat Oct 17 08:03:18 2020
ErrorMessage: new lxd package pre-installation script subprocess returned error exit status 1
Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.18rc1, python-is-python2, 2.7.17-4
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.2ubuntu0.1
SourcePackage: lxd
Title: package lxd 3.0.3-0ubuntu1~18.04.1 failed to install/upgrade: new lxd package pre-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to focal on 2020-10-17 (0 days ago)

[Stéphane Graber (stgraber)]

Ok, this is an unusual one from snapd.
Usually we only see this if you're running "snap install" inside a privileged container.

Can you confirm that this happened on a "real" system (physical or VM) and not inside a container?

If so, we'll re-assign to snapd for investigation.

[Launchpad Janitor (janitor)]

[Expired for lxd (Ubuntu) because there has been no activity for 60 days.]