well, because this became a big issue for me and my users i googled a lot and finally got this solved...
the segfault issue was caused by a previos mod to hald.conf trying to solve the original issue, after comparing between the bad an sane system i've managed to found the problem and after looking to the policy problem i've added this to /etc/dbus-1/system.d/hal.conf <!-- 01-08-2006 modification in order to KDE users can mount --> <policy group="plugdev"> <allow send_interface="org.freedesktop.Hal.Device.Volume"/> <allow send_interface="org.freedesktop.Hal.Device.Volume.Crypto"/> </policy> so is working again right now... the info needed was founded here: http://www.mail-archive.com/debian-kde@lists.debian.org/msg25907.html and this http://www.nabble.com/Bug-347233:-dbus-1-on-sarge-segfaults-if-a -unpriviliged-user-run-%22lshal%22-t880937.html something i believe is important: the sane system is my home laptop, and standalone system. the other two systems with the issue are using ldap as auth backend for the users. from the last link it seems to be some issue here with a different auth backend system. in fact at the laptop system the hal.conf mod is not needed but at the ldap system is needed... (just modify one of them, 'til monday i can get to the other one.. to double check) -- security policy error with hald after latest updates https://launchpad.net/bugs/58165 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs