Comment 7 for bug 140002

I have noticed exactly the same lines in my upgrade log the first time (sorry, the evidence was lost), but I also have additional symptoms (see below). When I unchecked cupsys from the upgrade list the upgrade finished without errors and only cupsys is left as an upgradable package.

Trying to upgrade cupsys now fails with a GUI message:

"E: /var/cache/apt/archives/cupsys_1.3.2-1ubuntu4_i386.deb: trying to overwrite `/usr/share/doc/libcupsys2/CREDITS.txt', which is also in package libcupsys2"

In the log:

Preconfiguring packages ...
(Reading database ... 136800 files and directories currently installed.)
Preparing to replace cupsys 1.3.2-1ubuntu1 (using .../cupsys_1.3.2-1ubuntu4_i386.deb) ...
Ignoring nonregistered document cupsys
 * Stopping Common Unix Printing System: cupsd
   ...done.
Unpacking replacement cupsys ...
dpkg: error processing /var/cache/apt/archives/cupsys_1.3.2-1ubuntu4_i386.deb (--unpack):
 trying to overwrite `/usr/share/doc/libcupsys2/CREDITS.txt', which is also in package libcupsys2
dpkg-deb: subprocess paste killed by signal (Broken pipe)
 * Starting Common Unix Printing System: cupsd
   ...done.
Errors were encountered while processing:
 /var/cache/apt/archives/cupsys_1.3.2-1ubuntu4_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install. Trying to recover: