NFS Mounting oddity...

[Arthur Dent]

Hello all,

I have just upgraded my desktop to F16 from F14 (I skipped F15 because the
live distro did not seem able to run gnome 3 on - now it does
apparently!).

I did a clean install (but with the existing /home partition) and copied
accross some config files (see below).

Now, although F16 works OK I notice it takes a veeeerrry looooong time to
boot. A little investigation led me to this:
[root at localhost ~]# systemd-analyze blame
 60374ms mnt-NFSmark.mount
 60369ms mnt-datastore.mount
 60368ms mnt-stuff.mount
  3819ms mdmonitor-takeover.service
  ....

Now this machine connects to a server running F15 on my home network
(192.168.2.2). This is the /etc/exports on that machine:
cat /etc/exports
/home/mark                    
192.168.2.4(rw,async,no_subtree_check,nohide,no_root_squash)
/mnt/tempstore                
192.168.2.4(rw,async,no_subtree_check,nohide,no_root_squash)
/mnt/datastore                
192.168.2.4(rw,async,no_subtree_check,nohide,no_root_squash)
/mnt/f11                      
192.168.2.4(rw,async,no_subtree_check,nohide,no_root_squash)

The NFS drives on the F16 desktop PC (192.168.2.4) are mounted by /etc/fstab:
192.168.2.2:/home/mark /mnt/NFSmark     nfs     rw              0 0
192.168.2.2:/mnt/tempstore/ /mnt/stuff  nfs     rw              0 0
192.168.2.2:/mnt/datastore/ /mnt/datastore      nfs     rw              0 0

This was copied from the previous F14 install where it worked fine and
there were no such delays during boot.

Why does it now take so long?
How do I troubleshoot further, or - better yet - fix it?

Thanks in advance...

Mark