i tried your way of installing but following error came up:
Hit
http://in.archive.ubuntu.com precise-backports/universe Translation-en
Fetched 3,597 kB in 13min 19s (4,497 B/s)
W: Failed to fetch
http://packages.medibuntu.org/dists/precise/Release.gpg Something wicked happened resolving 'packages.medibuntu.org:http' (-5 - No address associated with hostname)
W: Failed to fetch
http://packages.medibuntu.org/dists/pre ... 4/Packages Something wicked happened resolving 'packages.medibuntu.org:http' (-5 - No address associated with hostname)
W: Failed to fetch
http://packages.medibuntu.org/dists/pre ... 4/Packages Something wicked happened resolving 'packages.medibuntu.org:http' (-5 - No address associated with hostname)
W: Failed to fetch
http://packages.medibuntu.org/dists/pre ... 6/Packages Something wicked happened resolving 'packages.medibuntu.org:http' (-5 - No address associated with hostname)
W: Failed to fetch
http://packages.medibuntu.org/dists/pre ... 6/Packages Something wicked happened resolving 'packages.medibuntu.org:http' (-5 - No address associated with hostname)
W: Failed to fetch
http://packages.medibuntu.org/dists/pre ... tion-en_IN Something wicked happened resolving 'packages.medibuntu.org:http' (-5 - No address associated with hostname)
W: Failed to fetch
http://packages.medibuntu.org/dists/pre ... slation-en Something wicked happened resolving 'packages.medibuntu.org:http' (-5 - No address associated with hostname)
W: Failed to fetch
http://packages.medibuntu.org/dists/pre ... tion-en_IN Something wicked happened resolving 'packages.medibuntu.org:http' (-5 - No address associated with hostname)
W: Failed to fetch
http://packages.medibuntu.org/dists/pre ... slation-en Something wicked happened resolving 'packages.medibuntu.org:http' (-5 - No address associated with hostname)
E: Some index files failed to download. They have been ignored, or old ones used instead.
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?
what is wrong. same thing happens whenever i try to install other apps, in the last it shows an error.
HELP!!!!!