I managed to figure it out.  nfs-lock doesn't seem to be starting through systemd, and I'm not sure why.  I can start it using start manually, but when I try to enable it to start on system load, it claims "No file or directory".

On Mon, Apr 13, 2015 at 6:15 PM, Kelly Miller <lightsolphoenix@gmail.com> wrote:
Let's see...
The server is CentOS 6.  There's nothing fancy about the setup; rather than running an account sync like NIS or LDAP, I just make sure that both computers have the same users with the same user id's on both computers (it's a home network setup with both computers sitting right next to each other with a switch between them, so I can guarantee that).  I'm using the same fstab options I normally use: hard, intr, rsize=8192, wsize=8192, tcp, nfsvers=3 .  But for whatever reason, I get this message whenever I try to mount the drive.

On Mon, Apr 13, 2015 at 12:54 PM, Jason L Tibbitts III <tibbs@math.uh.edu> wrote:
>>>>> "KM" == Kelly Miller <lightsolphoenix@gmail.com> writes:

KM> I just tried to mount my home folders using NFS as I usually do, but
KM> no matter what I get the error mount.nfs: requested NFS version or
KM> transport protocol is not supported.  Did something change in the
KM> Alpha of Fedora 22 to suddenly break NFS mounting?  I've tried a
KM> bunch of mount options, but nothing seems to work.

I know that a kernel update in Fedora 21 broke kerberized NFS4 export
(on the server) when selinux is enabled, but I'm guessing that's not
your issue.  Perhaps you could provide more details.

 - J<