I found a discussion from 2008 on the net which seems to indicate that this is by design and won't get changed:
http://thread.gmane.org/gmane.linux.nfsv4/7103/focus=7105 Sad, but probably there is nothing that can be done about this (aside from using Kerberos, syncing IDs, or switching to Samba). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/966734 Title: nfs4+idmap does not map uids correctly when using AUTH_SYS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/966734/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs