[Bug 989788] Re: package nagios-plugins-basic 1.4.15-5ubuntu3 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 127

[Clint Byrum]

Hi James, thanks for taking the time to file this bug report and help us
make Ubuntu better.

It appears that Nagios was just a victim of insufficient dependencies:

Setting up libperl5.14 (5.14.2-6ubuntu2) ...
Setting up libperl-dev (5.14.2-6ubuntu2) ...
Setting up update-inetd (4.41) ...
Setting up iputils-ping (3:20101006-1ubuntu1) ...
Setting up nagios-plugins-basic (1.4.15-5ubuntu3) ...
perl: error while loading shared libraries: libperl.so.5.12: cannot open shared object file: No such file or directory
dpkg: error processing nagios-plugins-basic (--configure):
 subprocess installed post-installation script returned error exit status 127

As you see, libperl was updated without updating perl, so the linking
failed. Nagios uses 'ucf', which is a perl program, and depends on
debhelper, which then depends on perl. The problem is that perl was
basically in an inconsistent state at that point. It seems to me that
perl should Depend: libperl5 ${binary:Version} so that apt will upgrade
perl before trying to use perl. Perl is so fundamental to package
management though, its possible that this is one of those corner cases
that has to be dealt with differently.

Anyway, I believe this is perl's problem, not nagios's, and so I'm
redirecting the bug, and marking it as Medium importance.

** Package changed: nagios-plugins (Ubuntu) => perl (Ubuntu)

** Changed in: perl (Ubuntu)
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/989788

Title:
  package nagios-plugins-basic 1.4.15-5ubuntu3 failed to
  install/upgrade: ErrorMessage: subprocess installed post-installation
  script returned error exit status 127

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