Comment 32 for bug 1118447

Maybe it doesn't help much here. It just *could* be that it doesn't have to do anything with the network being up, but with DNS resolution?
I have had the problem on one computer (don't know why), and spotted the following line in /var/log/syslog:

    mount[859]: mount.nfs: Failed to resolve server kerberos: Temporary failure in name resolution

So I tested a bit, and found that if I put "kerberos" with the right IP into /etc/hosts, it works perfectly.

So maybe it is the problem that the name resolution at the boot time when NFS shares should be mounted, does still not work.