$ (echo deb http://de.archive.ubuntu.com/ubuntu/ lucid main restricted universe multiverse; echo deb http://de.archive.ubuntu.com/ubuntu/ lucid-updates main restricted universe multiverse; echo deb http://security.ubuntu.com/ubuntu lucid-security main restricted universe multiverse) | sh -c 'cat >>/etc/apt/sources.list'
$ apt-key update
$ apt-get update && apt-get -y upgrade
$ apt-get install -y build-essential libssl-dev libdb4.8-dev libdb4.8++-dev libboost-all-dev libqrencode-dev

...ELIDED...

WARNING: The following packages cannot be authenticated!
  libdb4.8 libdb4.8++ libdb4.8-dev libdb4.8++-dev
E: There are problems and -y was used without --force-yes