Yes, I can confirm it too That's due to a wrong sed command in the prerm script. You need to manually fix it before upgrading or uninstalling wizard-mounter. Follow the howto on prerm on this page : https://garage.maemo.org/frs/?group_id=444 In brief: 1. download the new prerm script on the link upper 2. copy the new prerm script (wizard-mounter.prerm) to /var/lib/dpkg/info/wizard-mounter.prerm 3. You're done. I'm sorry for the troubles