Regarding the Ubuntu package search there is no repository for Zentyal 4.2, but it provides a link to the homepage. It obviously was dropped after Trusty, so you need to get the source from Github. Seemingly you got the package from a third party and not from official Ubuntu repositories.
http://packages.ubuntu.com/search?suite=all&arch=any&searchon=names&keywords=zentyal-samba http://archive.ubuntu.com/ubuntu/pool/universe/z/zentyal-samba/zentyal-samba_2.3.12+quantal1ubuntu1.tar.gz http://archive.ubuntu.com/ubuntu/pool/universe/z/zentyal-samba/zentyal-samba_2.3.3.tar.gz http://www.zentyal.org/ https://github.com/Zentyal/zentyal -- Ubuntu-devel-discuss mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss
