ps showing user id not username

Hi,

I'm having this really odd problem with the test cluster (Ubuntu/Dapper + heartbeat 2.0.7) that I'm currently setting up.

I think the following summises it nicely:-

# id hacluster
uid=105(hacluster) gid=111(haclient) groups=111(haclient)

# grep hacluster /etc/passwd
hacluster:x:105:111:Heartbeat System Account,,,:/usr/lib/heartbeat:/bin/false

# grep hacluster /etc/shadow
hacluster:<snip - was valid hash!>:13412:0:99999:7:::

# ps -ef | grep heart
root      4767     1  0 13:51 ?        00:00:00 heartbeat: master control process
root      4804  4767  0 13:51 ?        00:00:00 heartbeat: FIFO reader      
root      4805  4767  0 13:51 ?        00:00:00 heartbeat: write: bcast eth1
root      4806  4767  0 13:51 ?        00:00:00 heartbeat: read: bcast eth1
105       4849  4767  0 13:55 ?        00:00:00 /usr/lib/heartbeat/ccm
105       4850  4767  0 13:55 ?        00:00:13 /usr/lib/heartbeat/cib
nobody    4851  4767  0 13:55 ?        00:00:00 /usr/lib/heartbeat/lrmd
root      4852  4767  0 13:55 ?        00:00:00 /usr/lib/heartbeat/stonithd
105       4853  4767  0 13:55 ?        00:00:00 /usr/lib/heartbeat/attrd
105       4854  4767  0 13:55 ?        00:00:00 /usr/lib/heartbeat/crmd
root      4855  4767  0 13:55 ?        00:00:01 /usr/lib/heartbeat/mgmtd -v
105       4856  4767  0 13:55 ?        00:00:00 /usr/lib/heartbeat/pingd -h 192.168.100.1 -m 100 -d 5s

As you can see 'ps -ef' isn't showing hacluster but instead is showing the uid of 105.

Also worth noting is that heartbeat is telling these processes to run as "hacluster" so it's getting that bit right, it's almost as if it can't reverse lookup the userid but I'm just guessing now!

Any ideas are most appreciated...