update-manager crashed with FileNotFoundError in __init__(): [Errno 2] Aucun fichier ou dossier de ce type: '/var/lib/dbus/machine-id'

[cohutche]

There was no distribution update. I simply made a fresh install with Ubuntu-unity 20.10 beta by formatting the original partition that contained Ubuntu-unity 20.10 development.

I then attempted a clean, update, and upgrade using the terminal. That's where I received the software pakage manager crash message.

ProblemType: Crash
DistroRelease: Ubuntu 20.10
Package: update-manager 1:20.10.1
ProcVersionSignature: Ubuntu 5.8.0-20.21-generic 5.8.10
Uname: Linux 5.8.0-20-generic x86_64
ApportVersion: 2.20.11-0ubuntu49
Aptdaemon:

Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: Unity:Unity7:ubuntu
Date: Sat Oct 10 10:15:50 2020
ExecutablePath: /usr/bin/update-manager
GsettingsChanges:
 b'com.ubuntu.update-manager' b'launch-count' b'1'
 b'com.ubuntu.update-manager' b'launch-time' b'int64 1602339348'
InstallationDate: Installed on 2020-10-05 (4 days ago)
InstallationMedia: Ubuntu Unity 20.10
InterpreterPath: /usr/bin/python3.8
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/update-manager --no-update --no-focus-on-map
Python3Details: /usr/bin/python3.8, Python 3.8.6, python3-minimal, 3.8.6-0ubuntu1
PythonArgs: ['/usr/bin/update-manager', '--no-update', '--no-focus-on-map']
PythonDetails: N/A
RebootRequiredPkgs:
 linux-image-5.8.0-21-generic
 linux-base
 evolution-data-server
SourcePackage: update-manager
Title: update-manager crashed with FileNotFoundError in __init__(): [Errno 2] Aucun fichier ou dossier de ce type: '/var/lib/dbus/machine-id'
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo

[Brian Murray (brian-murray)]

While this system was installed with an unofficial remix of Ubuntu, it does seem like there may be a missing fallback option with update-manager. Here's the source code of the Traceback:

        # a stable machine uniq id
        try:
            with open(self.UNIQ_MACHINE_ID_FILE) as f:
                self.machine_uniq_id = f.read()
        except FileNotFoundError:
            with open(self.UNIQ_MACHINE_ID_FILE_FALLBACK) as f:
                self.machine_uniq_id = f.read()

Perhaps the fallback machine_uniq_id should be one that installs all updates which are being phased.