package kdm (not installed) failed to install/upgrade: subprocess installed post-removal script returned error exit status 1

I keep getting this error when trying to purge kdm package. I use gnome mainly but when trying out kde (KDM) was installed but when asked I kept GDM as default (If this helps)

Ok, simple workaround 'sudo rm /var/lib/dpkg/info/kdm.postrm' then retry to purge. Works like a charm

Thanks for your report.

Setting to confirmed/medium because of duplicates.

Less simple but less abrasive workaround to try before purging.

edit /var/lib/dpkg/info/kdm.postrm and comment out the following three lines since they're apparently unnecessary:

if [ "$1" = "purge" ] ; then
        rm /etc/init/kdm.conf || exit $?
fi

Thank you. I had this exact problem too. Tried #3 suggestion and was able to remove residual config from Synaptic.

This bug was fixed in the package kdebase-workspace - 4:4.6.0a-0ubuntu1

---------------
kdebase-workspace (4:4.6.0a-0ubuntu1) natty; urgency=low

  [ Jonathan Riddell ]
  * New upstream release
  * Update kubuntu_103_kdm_theme.diff for 4.6 horos theme
  * Move ethais kdm theme to kdebase-workspace-wallpapers
  * Add link usr/share/wallpapers/kde-default.png into kdebase-workspace-data.links
    so we don't have to update Ubiquity and other bits each release

  [ Felix Geyer ]
  * Invoke global X session scripts on startup. (LP: #688393)
  * Don't remove the kdm upstart job when the package is purged as config
    files are already removed by dpkg. This made it impossible to purge kdm.
    (LP: #634707)
 -- Felix Geyer <email address hidden> Sat, 22 Jan 2011 17:36:22 +0100

Hey!

Bedankt voor je mail! Ik ben er even tussenuit geknepen naar een lekker warm land! Ik beantwoord je mail na mijn vakantie (11 oktober).

Groetjes!

Ruben

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