package opennebula-sunstone 4.12.3+dfsg-3.1build1 failed to install/upgrade: installed opennebula-sunstone package post-installation script subprocess returned error exit status 1

[Matheswaran]

Open nebula is not working

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: opennebula-sunstone 4.12.3+dfsg-3.1build1
ProcVersionSignature: Ubuntu 4.15.0-36.39-generic 4.15.18
Uname: Linux 4.15.0-36-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
Date: Thu Oct 25 14:11:55 2018
ErrorMessage: installed opennebula-sunstone package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2018-09-14 (40 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.6, python3-minimal, 3.6.5-3ubuntu1
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6.3ubuntu0.1
SourcePackage: opennebula
Title: package opennebula-sunstone 4.12.3+dfsg-3.1build1 failed to install/upgrade: installed opennebula-sunstone package post-installation script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[Christian Ehrhardt  (paelzer)]

Hi,
this package was buggy and unmaintained for quite a while already.
Due to that it was removed from the Archive after Bionic in Debain and Ubuntu.

=> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=903743

The package is only in universe and with a track record like that it seems nobody uses/cares about it much. Due to that the error is correctly "confirmed", but I doubt anyone will do something about it.

You can - if you want - start the effort to fix it up yourself and propose changes to the SRU
 [1] request, but other than that I'd not expect much to happen.

[1]: https://wiki.ubuntu.com/StableReleaseUpdates

[Christian Ehrhardt  (paelzer)]

For the sake of help and guidance, this particular error was rather trivial.
xmlrpc/client is missing (it was part of ruby but not is separated).
Due to that old dependencies are missing it.

You can
root@b:~# gem install xmlrpc

And restart the service:
$ systemctl restart opennebula-novnc

This makes the service run, but I'd not really want to rely on it seeing how broken it seems.