Comment 3 for bug 448268

I apologize, this ticket is only about 9.04 systems. I seem to have intermixed 8.04 and 9.04 previously. Updating the title of the ticket.

I tried your apt-get clean suggestion, still does not clean up the crud caused by Update Notifier silently started while Synaptic was updating the system.

id@host:~$ sudo apt-get clean
id@host:~$ sudo apt-get install
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0B of additional disk space will be used.
Setting up mono-jit (2.0.1-4ubuntu0.1) ...
update-alternatives: error or eof reading /var/lib/dpkg/alternatives/cli for update_mode ()
dpkg: error processing mono-jit (--configure):
 subprocess post-installation script returned error exit status 2
Errors were encountered while processing:
 mono-jit
E: Sub-process /usr/bin/dpkg returned an error code (1)
id@host:~$