$ sudo apt-get update
Err http://kubuntu.org breezy Release.gpg
  Temporary failure resolving 'kubuntu.org'
Err http://us.archive.ubuntu.com dapper Release.gpg
  Temporary failure resolving 'us.archive.ubuntu.com'
Err http://security.ubuntu.com dapper-security Release.gpg
  Temporary failure resolving 'security.ubuntu.com'
Err http://us.archive.ubuntu.com dapper-updates Release.gpg
  Temporary failure resolving 'us.archive.ubuntu.com'
Err http://security.ubuntu.com breezy-security Release.gpg
  Temporary failure resolving 'security.ubuntu.com'
Get:1 http://us.archive.ubuntu.com breezy Release.gpg [189B]
Get:2 http://us.archive.ubuntu.com breezy-backports Release.gpg [191B]
Hit http://us.archive.ubuntu.com breezy Release
Hit http://us.archive.ubuntu.com breezy-backports Release
Hit http://us.archive.ubuntu.com breezy/universe Sources
Hit http://us.archive.ubuntu.com breezy-backports/main Sources
Hit http://us.archive.ubuntu.com breezy-backports/restricted Sources
Hit http://us.archive.ubuntu.com breezy-backports/universe Sources
Hit http://us.archive.ubuntu.com breezy-backports/multiverse Sources
Fetched 2B in 3m2s (0B/s)
Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/dapper/Release.gpg  Temporary failure resolving 'us.archive.ubuntu.com'
Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/dapper-updates/Release.gpg  Temporary failure resolving 'us.archive.ubuntu.com'
Failed to fetch http://security.ubuntu.com/ubuntu/dists/dapper-security/Release.gpg  Temporary failure resolving 'security.ubuntu.com'
Failed to fetch http://security.ubuntu.com/ubuntu/dists/breezy-security/Release.gpg  Temporary failure resolving 'security.ubuntu.com'
Failed to fetch http://kubuntu.org/packages/kde35/dists/breezy/Release.gpg  Temporary failure resolving 'kubuntu.org'
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?