because of problems connecting OSX clients to the UCS AD domain (see thread) I would recreate a new test scenario with a modified/corrected MS Server 2012R2 DC Controller.
After new install of a UCS Master AND update to the newest version, the AD TakeOver failed.
Exactly the same error message as here.
The Log from the AD TakeOver /var/log/univention/ad-takeover.log:
2018-12-17 14:29:55,700 Adding DNS A record UCS-6657.My.Domain.Name for IPv4 IP: 192.168.1.127
2018-12-17 14:29:55,809 Could not find machine account in secrets database: Failed to fetch machine account password for DOMAIN from both secrets.ldb (Could not find entry to match filter: ‘(&(flatname=DOMAIN)(objectclass=primaryDomain))’ base: ‘cn=Primary Domains’: No such object: dsdb_search at …/source4/dsdb/common/util.c:4636) and from /var/lib/samba/private/secrets.tdb: NT_STATUS_CANT_ACCESS_DOMAIN_INFO
2018-12-17 14:29:55,818 ERROR(runtime): uncaught exception - (9003, ‘WERR_DNS_ERROR_RCODE_NAME_ERROR’)
The Log from the updater /var/log/univention/updater.log:
File: /etc/apt/sources.list.d/15_ucs-online-version.list
Cannot find service-record of _pkgdb._tcp.
No DB-Server-Name found.
Current UCS version is 4.3-3 errata381
Because a AD Takeover with a previous UCS version worked perfectly, I have no clue what´s happend.
Any help is appreciated