I'm not sure if G is saying something similar above, but I found that performing the following steps when still on Ubuntu 18.04 allows for do- release-upgrade to complete successfully:
sudo rm -r /etc/apparmor.d/cache/87595f25.0/ sudo rm -r /etc/apparmor.d/cache/bf9d6da9.0/ I think that these were the only subfolders in cache. There were other files in the cache folder, but I assume that rm can handle those. I wasn't sure if it was safe to delete the cache folder, but it didn't appear to be present after do-release-upgrade completed. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apparmor in Ubuntu. https://bugs.launchpad.net/bugs/2032851 Title: package apparmor 2.12-4ubuntu5.3 failed to install/upgrade: new apparmor package pre-installation script subprocess returned error exit status 1 Status in apparmor package in Ubuntu: Confirmed Bug description: package install error ProblemType: Package DistroRelease: Ubuntu 20.04 Package: apparmor 2.12-4ubuntu5.3 ProcVersionSignature: Ubuntu 4.15.0-213.224-generic 4.15.18 Uname: Linux 4.15.0-213-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.27 Architecture: amd64 CasperMD5CheckResult: skip Date: Thu Aug 24 02:35:35 2023 DuplicateSignature: package:apparmor:2.12-4ubuntu5.3 Preparing to unpack .../16-apparmor_2.13.3-7ubuntu5.2_amd64.deb ... rm: cannot remove '/etc/apparmor.d/cache/bf9d6da9.0': Is a directory dpkg: error processing archive /tmp/apt-dpkg-install-InP0fz/16-apparmor_2.13.3-7ubuntu5.2_amd64.deb (--unpack): new apparmor package pre-installation script subprocess returned error exit status 1 ErrorMessage: new apparmor package pre-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2023-08-22 (1 days ago) InstallationMedia: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release amd64 (20160803) ProcKernelCmdline: BOOT_IMAGE=/boot/vmlinuz-4.15.0-213-generic root=UUID=c5495aa8-cf2c-4042-a2ea-4533e9343808 ro quiet splash vt.handoff=1 Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2 PythonDetails: N/A RelatedPackageVersions: dpkg 1.19.7ubuntu3.2 apt 2.0.9 SourcePackage: apparmor Syslog: Aug 24 02:04:25 adminn-Lenovo-V110-15ISK dbus-daemon[4678]: [session uid=1000 pid=4678] AppArmor D-Bus mediation is enabled Aug 24 02:05:26 adminn-Lenovo-V110-15ISK dbus-daemon[856]: [system] AppArmor D-Bus mediation is enabled Aug 24 02:05:31 adminn-Lenovo-V110-15ISK dbus-daemon[1021]: [session uid=124 pid=1021] AppArmor D-Bus mediation is enabled Aug 24 02:06:04 adminn-Lenovo-V110-15ISK dbus-daemon[1506]: [session uid=1000 pid=1506] AppArmor D-Bus mediation is enabled Aug 24 03:39:11 adminn-Lenovo-V110-15ISK dbus-daemon[9963]: [session uid=0 pid=9956] AppArmor D-Bus mediation is enabled Title: package apparmor 2.12-4ubuntu5.3 failed to install/upgrade: new apparmor package pre-installation script subprocess returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/2032851/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
