PDP-11/70 and simh tapes

used OPTION: HA to display hardware. Expected to see DT (DEC tape) or MT (Mag tape) devices. But didn’t. Perhaps I need to attach them?

DECTAPE & MAGTAPE

DT: & MT: ??????

SHOW DEVICES
SHOW MT

in .ini
set tm disable
set ts enable

sim> att -r ts0 CUST-TAPE-1000.aws
%SIM-INFO: TS: Tape Image ‘CUST-TAPE-1000.aws’ scanned as SIMH format
%SIM-INFO: After processing 0 bytes of tape data (0 records, 0 tapemarks)
%SIM-INFO: Read Tape Record Returned Unexpected Status: invalid record length
%SIM-INFO: 164514 bytes of unexamined data remain in the tape image file
sim>

show ts

No tapes. Might have to do a SYSGEN

Maybe something like OPEN “MT0:” FOR INPUT in Basic-Plus