myhostname ~ # apt-get clean
myhostname ~ # apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
 kate : Depends: kate-data (>= 4:4.8.4-0ubuntu0.1) but 4:4.8.3-0ubuntu0.1 is installed
 katepart : Depends: kate-data (>= 4:4.8.4-0ubuntu0.1) but 4:4.8.3-0ubuntu0.1 is installed
E: Unmet dependencies. Try using -f.
myhostname ~ # apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following extra packages will be installed:
  kate-data
The following packages will be upgraded:
  kate-data
1 upgraded, 0 newly installed, 0 to remove and 12 not upgraded.
230 not fully installed or removed.
Need to get 1,155 kB of archives.
After this operation, 91.1 kB of additional disk space will be used.
Do you want to continue [Y/n]?
Get:1 http://archive.ubuntu.com/ubuntu/ precise-updates/main kate-data all 4:4.8.4-0ubuntu0.1 [1,155 kB]
Fetched 1,155 kB in 2s (467 kB/s)
(Reading database ... 125204 files and directories currently installed.)
Preparing to replace kate-data 4:4.8.3-0ubuntu0.1 (using .../kate-data_4%3a4.8.4-0ubuntu0.1_all.deb) ...
Unpacking replacement kate-data ...
dpkg: error processing /var/cache/apt/archives/kate-data_4%3a4.8.4-0ubuntu0.1_all.deb (--unpack):
 unable to stat `./usr/share/doc/kde/HTML/en/kate/common' (which I was about to install): Input/output error
Processing triggers for shared-mime-info ...
Unknown media type in type 'all/all'
Unknown media type in type 'all/allfiles'
Unknown media type in type 'uri/mms'
Unknown media type in type 'uri/mmst'
Unknown media type in type 'uri/mmsu'
Unknown media type in type 'uri/pnm'
Unknown media type in type 'uri/rtspt'
Unknown media type in type 'uri/rtspu'
Processing triggers for man-db ...
Processing triggers for hicolor-icon-theme ...
Errors were encountered while processing:
 /var/cache/apt/archives/kate-data_4%3a4.8.4-0ubuntu0.1_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)