# apt-get update
Get:1 http://ftp.port80.se unstable Release.gpg [378B]
Hit http://ftp.port80.se unstable Release
Hit http://ftp.port80.se unstable/main Packages/DiffIndex
Hit http://ftp.port80.se unstable/contrib Packages/DiffIndex
Hit http://ftp.port80.se unstable/non-free Packages/DiffIndex
Fetched 378B in 1s (269B/s)
Reading package lists... Done
W: There are no public key available for the following key IDs:
A70DAF536070D3A1
W: You may want to run apt-get update to correct these problems