percona-nagios-plugins fails to install on Debian Squeeze when debsums is installed

[Markus uckelmann]

Hi all,

I just stumbled over this problem. Here the problem in detail:

root@host ~# LANG=C apt-get install percona-nagios-plugins
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
  percona-nagios-plugins
0 upgraded, 1 newly installed, 0 to remove and 3 not upgraded.
Need to get 0 B/20.3 kB of archives.
After this operation, 0 B of additional disk space will be used.
Selecting previously deselected package percona-nagios-plugins.
(Reading database ... 48356 files and directories currently installed.)
Unpacking percona-nagios-plugins (from .../percona-nagios-plugins_1.0.3-1_all.deb) ...
Setting up percona-nagios-plugins (1.0.3-1) ...

Plugins are installed to /usr/lib64/nagios/plugins
debsums: package percona-nagios-plugins version 1.0.3-1 != installed version 1.0.3-1
E: Problem executing scripts DPkg::Post-Invoke 'if [ -x /usr/bin/debsums ]; then /usr/bin/debsums --generate=nocheck -sp /var/cache/apt/archives; fi'
E: Sub-process returned an error code

After some digging I found out that in the following line the first version number has a space at the end:
debsums: package percona-nagios-plugins version 1.0.3-1 != installed version 1.0.3-1

So it is in real '1.0.3-1 ' != '1.0.3-1' and debsums stumbles over this. After some further digging my guess is that the space comes from the control file in deb package:

root@host:/tmp# cat -vte control
[...]
Package: percona-nagios-plugins$
Version: 1.0.3-1 $
Architecture: all $
[...]

I haven't tried anything else, like does upgrading the package work e.g.

Cheers, Shorty

[Roman Vynar (roman-vynar)]

Hi,

Thanks for the report.

However, I was unable to reproduce the problem with debsum. But there is the space in control file so I think it was the reason of your problem. It will be fixed in the next release.