rummler@ubuntu:~$ sudo apt-get install tortoisehg
sudo: unable to resolve host ubuntu
E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
rummler@ubuntu:~$ sudo apt-get install tortoisehg
sudo: unable to resolve host ubuntu
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  tortoisehg: Depends: mercurial (>= 2.0) but 1.4.3-1 is to be installed
E: Broken packages