I automount an nfs share from my mac mini to a linux file server. I upgraded the mac to leopard and discovered that automounts are nolonger set in the netinfo app, in fact netinfo doesn’t exist anymore in leopard. Instead you are supposed to use Directory Utility. The only issue was that the original mount didn’t show up in the utility. After some more searching I found this webpage that explains where the mount files are stored in /var/db/dslocal/nodes/Default/mounts and you need to update the file to say <key>vfstype</key> instead or <key>type</key>