>> Did you pass the following option in the dhcpd.conf :
>> use-host-decl-names on;
This dhcp option is not related to the $SERVER variable.
IIRC it's server-name or next-server which defines the variable $SERVER.
IIRC the variable $SERVER is not defined if you are doing fai
softupdate. This is a known bug in fai.
--
regards Thomas