Changing user's home directory permission

Note: its users home dir and owner is nobody
Do the following steps, it wont allow change on client
Problem:
User home directory is owned by someone else. Changing permission is not allowed.
[root@aigunx225 ~]# ls -ld /home/weblogic
drwxr--r-- 2 nobody webgp 4096 Jun 21  2010 /home/weblogic

[root@aigunx225 ~]# chown -R weblogic:webgp /home/weblogic
chown: changing ownership of `/home/weblogic': Operation not permitted
restarted autofs still problem

Solution
Get the nfs share info
[root@aigunx225 ~]# df -h /home/weblogic
Filesystem            Size  Used Avail Use% Mounted on
aignas2:/vol/aignas512/appserv2/weblogic
                      200G  124G   77G  62% /home/weblogic

[root@aigunx225 ~]# id weblogic
uid=7253690(weblogic) gid=75154(webgp) groups=75154(webgp)

Mount same nas on homeserve01 or he2unx171 and then change the ownership.
On appserv02 server,
# mkdir /tmp/xyz
# mount aignas2:/vol/aignas512/appserv2 /tmp/xyz
# cd /tmp/xyz
# ls -ld weblogic
drwxr--r--   2 100325   webgp    4096 Jun 21  2010 weblogic
# chown -R weblogic:webgp weblogic
drwxr--r-- 2 weblogic webgp 4096 Jun 21  2010 /home/weblogic
Now, login to the client machine and verify.
[root@aigunx225 ~]# ls -ld /home/weblogic
drwxr--r-- 2 weblogic webgp 4096 Jun 21  2010 /home/weblogic
[root@aigunx225 ~]#

make sure umount the nas after your done your change
on appserv02,
# umount /tmp/xyz
# rmdir /tmp/xyz