Ah, that was the piece I was missing. Somehow after adding the debian- installer repo in order to play with d-i creation, either I accidentally installed cdebconf-udeb, or some other package took it on as a dependency and I didn't even notice it (for a few years I might add).
I'm honestly surprised this hadn't caused issues before. It certainly wreaked havoc on my system during this attempted upgrade. I was eventually able to brute-force the removal of cdebconf and reconfigure debconf and fix my broken system. This is resolved, and was not an issue with libpam but rather my own misfortune and cdebconf being _almost good enough_ to fool me. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pam in Ubuntu. https://bugs.launchpad.net/bugs/1831221 Title: do-release-upgrade fails due to package libpam0g:amd64 1.1.8-3.2ubuntu2.1 Status in pam package in Ubuntu: Incomplete Bug description: While performing a release upgrade from 14.04 to 16.04, the do- release-upgrade process crashes, apparently due to a failure installing or upgrading the package libpam0g:amd64 1.1.8-3.2ubuntu2.1 ProblemType: Package DistroRelease: Ubuntu 16.04 Package: libpam0g:amd64 1.1.8-3.2ubuntu2.1 ProcVersionSignature: Ubuntu 3.13.0-165.215-generic 3.13.11-ckt39 Uname: Linux 3.13.0-165-generic x86_64 NonfreeKernelModules: rr232x ApportVersion: 2.14.1-0ubuntu3.29 Architecture: amd64 Date: Fri May 31 04:35:26 2019 DuplicateSignature: package:libpam0g:amd64:1.1.8-3.2ubuntu2.1:subprocess installed post-installation script returned error exit status 1 ErrorMessage: subprocess installed post-installation script returned error exit status 1 RelatedPackageVersions: dpkg 1.18.4ubuntu1.5 apt 1.2.31 SourcePackage: pam Title: package libpam0g:amd64 1.1.8-3.2ubuntu2.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: Upgraded to xenial on 2019-05-31 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pam/+bug/1831221/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
