However, apt-get upgrade choked (with nothing less than a segmentation fault) when I tried to update the package 'shared-mine-types'. Even a gdb backtrace wasn't helpful at all.
I could replicate the seg/fault by trying to update the mime database:
The workaround I found was pretty easy (though also ugly). The problem is a conflict with an early version of libxml2 and libxml2-dev. The workaround is to do this (pull never versions from Ubuntu 10.10 (Maverick)):
apt-get purge shared-mime-info
dpkg -i libxml2-dev_2.7.7.dfsg-4ubuntu0.3_amd64.deb
dpkg -i libxml2_2.7.7.dfsg-4ubuntu0.3_amd64.deb
apt-get install shared-mime-info
Now you should be able to do:
The specs of the Ubuntu is 10.04.4 LTS (Lucid) with a custom compilation of gdm-2.20 from Ubuntu 9.10 (Karmic).
Happy apt-get upgrade'ing!