Comment 6 for bug 46784

Semms that the update also messed up the package DB.. I just tried:

[0] nokile:~$ sudo aptitude install gnus
Password:
Reading package lists... Done
Building dependency tree... Done
Reading extended state information
Initializing package states... Done
Writing extended state information... Done
Building tag database... Done
The following packages are unused and will be REMOVED:
  dash libdb1-compat libdb3 libgcj6-common libglide2 libreiserfs0.3-0 libsigc++-1.2-5c2
  xserver-xorg-driver-glide
The following packages have been kept back:
  acpi-support appres aptitude-doc-en aspell aspell-de at auctex bbdb bc beforelight bicyclerepair
[....]
The following packages will be upgraded:
  gnus
1 packages upgraded, 0 newly installed, 8 to remove and 744 not upgraded.
Need to get 0B of archives. After unpacking 11.6MB will be freed.
Do you want to continue? [Y/n/?]
Writing extended state information... Error!
E: I wasn't able to locate file for the acpi-support package. This might mean you need to manually fix this package.
E: Couldn't lock list directory..are you root?