package openvas-server 2.0.3-4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 10

[Abish Haridasan]

Description: Ubuntu precise (development branch)
Release: 12.04

openvas-server:
  Installed: 2.0.3-4
  Candidate: 2.0.3-4
  Version table:
 *** 2.0.3-4 0
        500 http://in.archive.ubuntu.com/ubuntu/ precise/universe i386 Packages
        100 /var/lib/dpkg/status

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: openvas-server 2.0.3-4
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic-pae 3.2.6
Uname: Linux 3.2.0-17-generic-pae i686
NonfreeKernelModules: wl
ApportVersion: 1.93-0ubuntu2
Architecture: i386
Date: Wed Apr 25 20:22:15 2012
DuplicateSignature:
 Setting up openvas-server (2.0.3-4) ...
 dpkg: error processing openvas-server (--configure):
  subprocess installed post-installation script returned error exit status 10
ErrorMessage: subprocess installed post-installation script returned error exit status 10
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
SourcePackage: openvas-server
Title: package openvas-server 2.0.3-4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 10
UpgradeStatus: Upgraded to precise on 2012-03-21 (34 days ago)

[Launchpad Janitor (janitor)]

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

[Aldo Cassola (aldocassola)]

I can confirm this bug. After running:

DEBCONF_DEBUG=developer dpkg -D777 --configure openvas-server

output:
(...)
Setting up openvas-server (2.0.3-4) ...
D000002: fork/exec /var/lib/dpkg/info/openvas-server.postinst ( configure )
debconf (developer): frontend started
debconf (developer): frontend running, package name is openvas-server
debconf (developer): starting /var/lib/dpkg/info/openvas-server.config configure
debconf (developer): <-- INPUT low openvasd/certificate
debconf (developer): --> 10 "openvasd/certificate" doesn't exist
debconf (developer): <-- INPUT medium openvasd/califetime
debconf (developer): --> 10 "openvasd/califetime" doesn't exist
debconf (developer): <-- INPUT medium openvasd/srvlifetime
debconf (developer): --> 10 "openvasd/srvlifetime" doesn't exist
debconf (developer): <-- SET openvasd/country US
debconf (developer): --> 10 openvasd/country doesn't exist
dpkg: error processing openvas-server (--configure):
 subprocess installed post-installation script returned error exit status 10
Errors were encountered while processing:
 openvas-server

It seems the debconf file /var/cache/debconf/config.dat lists openvas-server/certificate as the key, while the script /var/lib/dpkg/info/openvas-server.config expects it to be openvasd/certificate. Changing the script file and rebuilding the .deb file fixed the problem for me.