package nagvis 1:1.7.10+dfsg1-2 failed to install/upgrade: subprocess installed post-installation script goes zombie

[Marc-André DOLL]

When trying to install the nagvis 1.7.10 package on my Ubuntu 14.04 desktop, the installation configuration step freezes. When doing a "ps auxf" check in an other terminal I can see that a child process is seen as defunct (see the attachment). The package installation can not go any further. I have to kill a process for the rest of the steps to continue. At the end, the nagvis package is not seen as installed by the system.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: nagvis 1:1.7.10+dfsg1-2
ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
Date: Wed Dec 17 15:44:23 2014
DuplicateSignature: package:nagvis:1:1.7.10+dfsg1-2:subprocess installed post-installation script was killed by signal (Terminated)
ErrorMessage: subprocess installed post-installation script was killed by signal (Terminated)
InstallationDate: Installed on 2012-11-22 (754 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
PackageArchitecture: all
SourcePackage: nagvis
Title: package nagvis 1:1.7.10+dfsg1-2 failed to install/upgrade: subprocess installed post-installation script was killed by signal (Terminated)
UpgradeStatus: Upgraded to trusty on 2014-05-09 (222 days ago)

[Jibus (jibe555)]

Nagvis hangs up when installing after shinken (with shinken option)

[Launchpad Janitor (janitor)]

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

[Patrick Kinney (pkinney-mn)]

when will this be fixed?

[Christofer Bernander (christoferb)]

I encountered this problem today with nagvis 1:1.7.10+dfsg1-2 on Ubuntu 14.04.4 (server), where the package configuration was hanging and I had to terminate with Ctrl+C.

I was able to resolve the issue by editing /var/lib/dpkg/info/nagvis.postinst and adding the following line just before the last (exit 0) line:

db_stop

I was then able to run 'dpkg --configure nagvis' and complete the package setup.

Cheers