Comment 3 for bug 576798

I have the same symptoms as hilbert

10.04 - clean install; everything appears to be working OK but all Synaptic installs or apt-get install, etc

Here's an example installing apg:

Reading package lists...
Building dependency tree...
Reading state information...
The following NEW packages will be installed
  apg
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 0B/53.2kB of archives.
After this operation, 209kB of additional disk space will be used.
Selecting previously deselected package apg.

(Reading database ...

dpkg: warning: files list file for package `gnome-power-manager' missing, assuming package has no files currently installed.

... and so on for many packages from line 12 until line 2332 finally ....

(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 38406 files and directories currently installed.)

Unpacking apg (from .../apg_2.2.3.dfsg.1-2_i386.deb) ...

Processing triggers for man-db ...

Setting up grub-pc (1.98-1ubuntu6) ...

dpkg: error processing grub-pc (--configure):

 subprocess installed post-installation script returned error exit status 10

Setting up apg (2.2.3.dfsg.1-2) ...

Errors were encountered while processing:

 grub-pc