Preparing to unpack .../language-pack-en_1%3a14.04+20150219_all.deb ...
Unpacking language-pack-en (1:14.04+20150219) over (1:14.04+20141110) ...
Preparing to unpack .../language-pack-en-base_1%3a14.04+20150219_all.deb ...
Unpacking language-pack-en-base (1:14.04+20150219) over (1:14.04+20140707) ...
Preparing to unpack .../unattended-upgrades_0.82.1ubuntu2.1_all.deb ...
Unpacking unattended-upgrades (0.82.1ubuntu2.1) over (0.82.1ubuntu2) ...
Processing triggers for ureadahead (0.100.0-16) ...
ureadahead will be reprofiled on next reboot
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
Setting up x11-utils (7.7+1) ...
dpkg: error processing package x11-utils (--configure):
 cannot compute MD5 hash for file '/etc/X11/app-defaults/Editres.dpkg-new': failed to read (Input/output error)