When I try to install updates with update manager I get this message
The package system is broken Check if you are using third party repositories. If so disable them, since they are a common source of problems. Furthermore run the following command in a Terminal: `apt-get install -f` The following packages have unmet dependencies: libc6-dev:i386: Depends: libc6 (= 2.15-0ubuntu10) but 2.15-0ubuntu10 is installed Depends: libc-dev-bin (= 2.15-0ubuntu10) but 2.15-0ubuntu10 is installed
And when i type in
apt-get install -f I get this answer
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied) E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
What to do?