The following packages will be upgraded:
  cupsys
1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
27 not fully installed or removed.
Need to get 0B/1557kB of archives.
After unpacking 496kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Preconfiguring packages ...
(Reading database ... 106216 files and directories currently installed.)
Preparing to replace cupsys 1.2.5-1ubuntu1 (using .../cupsys_1.2.7-1ubuntu1_i386.deb) ...
Document `cupsys' is not installed, cannot remove.
invoke-rc.d: initscript cupsys, action "stop" failed.
dpkg: warning - old pre-removal script returned error exit status 1
dpkg - trying script from the new package instead ...
invoke-rc.d: initscript cupsys, action "stop" failed.
dpkg: error processing /var/cache/apt/archives/cupsys_1.2.7-1ubuntu1_i386.deb (--unpack):
 subprocess new pre-removal script returned error exit status 1
invoke-rc.d: initscript cupsys, action "start" failed.
dpkg: error while cleaning up:
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 /var/cache/apt/archives/cupsys_1.2.7-1ubuntu1_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)