Sounds like you are doing nothing wrong. Each new release of sdb
has a couple more commands that work. Maybe someday more than
half will. :-)
My favorite is single step 10 instructions:
s10
symbol not found
--
Phil Hughes, SSC, Inc. P.O. Box 55549, Seattle, WA 98155 (206)FOR-UNIX
amc-gw!ssc!fyl or uunet!pilchuck!ssc!fyl or attmail!ssc!fyl