apt

[dreadknot]

Install specific version

sudo apt-get -y install perl-modules=5.14.2-6ubuntu2.4 libyaml-0-2=0.1.4-2ubuntu0.12.04.2 libcurl3=7.22.0-3ubuntu4.7 libcurl3-gnutls=7.22.0-3ubuntu4.7

Find specific version

apt-cache showpkg libyaml-0-2

Or change hkp to :80

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 428D7C01

Use defaults or old config

sudo apt-get  -y -o "Dpkg::Options::=--force-confdef" -o "Dpkg::Options::=--force-confold" dist-upgrade