pykolab 0.8.3-0~kola all The file /opt/kolab_guam/releases/0.8.3/sys.config contains referrals to: /etc/pki/cyrus-imapd/cyrus-imapd.pem which is missing in the ubuntu distros. It should be: /etc/ssl/private/cyrus-imapd.pem If I try to start manually erlexec with this command: /opt/kolab_guam/erts-5.10.4/bin/erlexec -boot /opt/kolab_guam/releases/0.8.3/kolab_guam -mode embedded -config /opt/kolab_guam/releases/0.8.3/sys.config -args_file /opt/kolab_guam/releases/0.8.3/vm.args I get back the error: Environment variable BINDIR is not set. Even if I set the variable BINDIR with: export BINDIR=/opt/kolab_guam/erts-5.10.4/bin I still get back the error: Environment variable BINDIR is not set.