Has something changed with the LDBASE command?
 
This is what I received:
 
 
ldbase
You must "NUCXLOAD LSVIUCV (SYSTEM SERVICE" prior to initialization.
Error 24 during initialization. Executed command was:
LSVIUCV INIT WEAVER OHSTVMA RSCS
Ready(00100); T=0.05/0.07 08:19:51
 
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Duane D. Weaver
LISTSERV Postmaster
Senior Systems Programmer
Ohio State University