After some more tests I found that package keyutils is not installed anymore on my newer systems > 16.04. After installing package keyutils mount.cifs is mounting via kerberos ticket again! So there is a dependency for package keyutils in relevant packages missing and should be added!
For those who want to know how to get to the missing package: On 16.04 where mount.cifs is working with krb5 I got messages with cifs.upcall in syslog. The manpage for cifs.upcall showed me a reference to request-key.conf. That file or manpage was not installed in newer systems and is located in keyutils. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1734700 Title: mounting CIFS share failure (cifs_mount failed w/return code = -2) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cifs-utils/+bug/1734700/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
