I noticed that pam_krb5 sets: $KRB5CCNAME to /tmp/krb5cc_<uid>_<six-random-chars>
Which can cause the "Required key not available" error because mount.cifs is actually looking for a per-uid, not per-session file at /tmp/_<uid>. Not yet found a way around it, but to mount things manually I have to do e.g.: $ sudo cp /tmp/krb5cc_<1234>_<blahblah> /tmp/krb5cc_<1234> After that, mount commands with "-o sec=krb5" actually works. Some background info here: https://bugzilla.redhat.com/show_bug.cgi?id=517195 ** Bug watch added: Red Hat Bugzilla #517195 https://bugzilla.redhat.com/show_bug.cgi?id=517195 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/676525 Title: mount.cifs cannot mount with kerberos To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cifs-utils/+bug/676525/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs