I've set up a test eDir environment and I'm trying to use LDIF to import
users from our prod environment. The user import fails with a schema
validation error. I then tried unsuccessfully to import the schema from
the prod tree. If I use "ndsrepair -S -Ad > import schema from Tree", I
get "Unable to extend schema on this server. Error -603". If I use
iManager "eDirectory maintenance > import remote schema", I get "Error
-347156450" immediately after I input the source tree's IP and click

Our production system is eDirectory (DS version 20701.48) on
RHEL 6. The test system is eDir (DS version 20705.00) on the
same OS. Do both systems need to be exactly the same eDirectory patch
level? If not, what else should I check?