Univention-upgrade REMOVES univention-samba4 and breaks my 5.0-3 domain

[damrose]

A fix has just been released. This article should help with restoring the system, if samba4 has been uninstalled:

Samba4 / Active Directory-compatible Domain Controller has been uninstalled when updating UCS 5.0-3 errata, or update to 5.0-4(Bug 56516)

With UCS 5.0-3 errata update 794 Security and bugfix errata for Univention Corporate Server a dependency problem has been introduced, that can cause the Samba4 / Active Directory-compatible Domain Controller packages to be removed during the update. This could happen if errata updates were installed on UCS 5.0-3, or if the system was updated to UCS 5.0-4 A fix was provided with UCS 5.0-3 errata 795 Security and bugfix errata for Univention Corporate Server. To find out if the server affected, …