[Starcluster] problem with centOS ami?

[Dan Yamins]

I built a centOS that is supposed to replicate most of the starcluster
ubuntu ami features.

Everything seems to be working fine, except that during the start,  get the
following error message (or something like it)

....
>>> Configuring NFS ....
ERROR: ssh.py - 249 : "mount -t rpc_pipefs sunrpc /var/lib/nfs/rpc_pipefs/"
exited with error status 32
...

Even though I see this error, the resulting cluster seems to work fine (my
EBS volumes are shared via NFS, my SGE is working fine ... &c)

Additionally, when I try to re-run the offending command on the master node
directly, after startup completes,  I get:

[root at domU-12-31-39-0E-40-72 ~]# mount -t rpc_pipefs sunrpc
/var/lib/nfs/rpc_pipefs
mount: sunrpc already mounted or /var/lib/nfs/rpc_pipefs busy
mount: according to mtab, sunrpc is already mounted on
/var/lib/nfs/rpc_pipefs

Justin, do you know what is going on, and how I should fix it?  Are things
actually essentially working, or not?

The image is  ami-74b65c1d, and I've made it public.


Thanks!
Dan

################### MORE INFO:

Here is the output of mount on the master node:

[root at domU-12-31-39-0E-40-72 ~]# mount
/dev/sda1 on / type ext3 (rw)
none on /proc type proc (rw)
none on /sys type sysfs (rw)
none on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/sdb on /mnt type ext3 (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
/dev/sdz1 on /home type ext3 (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
nfsd on /proc/fs/nfsd type nfsd (rw)

Output of mount on the other node (using passwordless ssh from the master):

[root at domU-12-31-39-0E-40-72 ~]# ssh node001 mount
/dev/sda1 on / type ext3 (rw)
none on /proc type proc (rw)
none on /sys type sysfs (rw)
none on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/sdb on /mnt type ext3 (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
domU-12-31-39-0E-40-72.compute-1.internal:/home on /home type nfs
(rw,user=root,nosuid,nodev,user,addr=10.192.67.128)
domU-12-31-39-0E-40-72.compute-1.internal:/opt/sge6 on /opt/sge6 type nfs
(rw,user=root,nosuid,nodev,user,addr=10.192.67.128)
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