package sgml-base 1.29 failed to install/upgrade: eindeloze triggerlus; afgebroken

[FrankThuis]

upgrade from 18:10 to 19:04

ProblemType: Package
DistroRelease: Ubuntu 19.04
Package: sgml-base 1.29
ProcVersionSignature: Ubuntu 5.0.0-8.9-generic 5.0.1
Uname: Linux 5.0.0-8-generic x86_64
ApportVersion: 2.20.10-0ubuntu25
Architecture: amd64
Date: Fri Apr 5 00:33:37 2019
ErrorMessage: eindeloze triggerlus; afgebroken
InstallationDate: Installed on 2016-12-31 (824 days ago)
InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
PackageArchitecture: all
Python3Details: /usr/bin/python3.7, Python 3.7.3, python3-minimal, 3.7.3-1
PythonDetails: /usr/bin/python2.7, Python 2.7.16, python-minimal, 2.7.16-1
RelatedPackageVersions:
 dpkg 1.19.6ubuntu1
 apt 1.8.0
SourcePackage: sgml-base
Title: package sgml-base 1.29 failed to install/upgrade: eindeloze triggerlus; afgebroken
UpgradeStatus: Upgraded to disco on 2019-04-04 (0 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[AnGus (ozsolarwind)]

I've encountered the same problem. I received message for 'sgml-base' and 'linux-image-5.0.0-13-generic':

""Could not install 'sgml-base'
The upgrade will continue but the 'sgml-base' package may not be in a working state. Please consider submitting a bug report about it.

triggers looping, abandoned"

Followed by the same message for 'linux-image-5.0.0-13-generic'.

When the upgrade from 18.10 to 19.04 finished it showed:

"Could not install the upgrades. The upgrade has aborted. Your system could be in unstable state. A recovery will run now (dpkg --configure -a)"

Other than the package involved this seems a duplicate of https://bugs.launchpad.net/bugs/1823004

In looking at the crash logs they lead to the same conclusion as in https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1823004/comments/5

[Ali Deym (alideym)]

I have faced the same problem, not sure what's causing this.