Your verification showed "permission denied" when NFSv3 was attempted, which I expect when -t nfs4 is used, but not in the -t nfs case, or when "-t" is not used at all.
Since this is a quick check, I ran these tests: root@j-nfs-server:~# cat /proc/fs/nfsd/versions -2 +3 -4 -4.0 -4.1 -4.2 Autonegotiation falls back to 3.0: root@f-nfs-client:~# mount -t nfs j-nfs-server.vms:/storage /mnt root@f-nfs-client:~# mount|grep nfs j-nfs-server.vms:/storage on /mnt type nfs (rw,relatime,vers=3,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.122.149,mountvers=3,mountport=42872,mountproto=udp,local_lock=none,addr=192.168.122.149) And when the server supports them all, and I request v3 specifically, that also works: root@j-nfs-server:~# cat /proc/fs/nfsd/versions -2 +3 +4 +4.1 +4.2 root@f-nfs-client:~# mount -t nfs j-nfs-server.vms:/storage /mnt -o vers=3 root@f-nfs-client:~# mount | grep nfs j-nfs-server.vms:/storage on /mnt type nfs (rw,relatime,vers=3,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.122.149,mountvers=3,mountport=40448,mountproto=udp,local_lock=none,addr=192.168.122.149) And autonegotiation also still works and selects 4.2 when I just use "-t nfs" (not -t nfs4): root@f-nfs-client:~# mount -t nfs j-nfs-server.vms:/storage /mnt root@f-nfs-client:~# mount|grep nfs j-nfs-server.vms:/storage on /mnt type nfs4 (rw,relatime,vers=4.2,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=192.168.122.242,local_lock=none,addr=192.168.122.149) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2059197 Title: mount.nfs: Fix minor version parsing when '-t nfs4' and '-o vers=4.x' are used together To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/2059197/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
