nfs mount: mount: /mnt/nfs: Not owner
When you get this error from a Solaris Host, because you are trying to mount an nfsV3 share with an nfsV4 client.
This occurs when you want to share an nfs from a linux host to a solaris host.
Just use the option vers=3 to avoid this problem or configure nfsV4 on the linux host.
mount -o vers=3 linux_nfs_01:/htdocs /htdocs