mcdermott_2.dsk:
#  NAME TYPE MODE SIZ BLK KIND U V ENT USER
01 SYS  TD8E RWF  737 SYS      0 A   7 
02 DSK  TD8E RWF  737 SYS      0 A   7 
03 DTA0 TD8E RWF  737 SYS      0 A   7 
04 DTA1 TD8E RWF  737 SYS      0 A   7 
05 TTY  TTY  RW       16+ KL8E   C 176 
06 PTP  PTP   W       17  PT8E   A   0 
07 PTR  PTR  R        17  PT8E   A 110