package gufw 10.04.1-0ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Naminator_X_]

This error showed up when i tried to upgrade my 9.10 installation to 10.04 and that stopped my upgrade process at like 80% and now i have partially upgraded system :D anyway few hours later i checked the update manager there was some 56KB about some linux device mapper (devmap ?) i tried to install it and this error showed up

ProblemType: Package
AptOrdering:
 dmsetup: Install
 gufw: Configure
 dmsetup: Configure
Architecture: i386
Date: Sun Mar 21 22:11:36 2010
DistroRelease: Ubuntu 10.04
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
Package: gufw 10.04.1-0ubuntu1
PackageArchitecture: all
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
SourcePackage: gui-ufw
Title: package gufw 10.04.1-0ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
Uname: Linux 2.6.32-16-generic i686