[TUHS] having issues with simh and setting up dci for unixV7

hello all, i am a new unix user, so please excuse my ignorance. I am trying to setup using unixV7 with simh pdp11 emulator. The guide i am following is by Will Senn (in PDF form). I have been able to successfully get the machine to boot with unix, and login as root. what i am having problems with, is trying to get telnet access via dci to work. when i follow the guide and do the following: # cd /usr/sys/conf # rm l.o c.o # cp hptmconf myconfnf # echo 4dc >> myconf # mkconf < myconf # make as - -o l.o l.s cc -c c.c ld -o unix -X -i l.o mch.o c.o ../sys/LIB1 ../dev/LIB2 # sum unix 10314 106 # ls -l unix -rwxrwxr-x 1 root 54122 Dec 31 19:09 unix etc... when i issue the mkconf < myconf command, i get a bunch of text printed out, but with a 'root device not found'. the sum unix value is different, as well as the size of the ls -l unix file size.. now when i try booting it with the newly created mboot.ini file (as per the guide), i go to start up the system with 'hp(0,0)munix' and it starts but hangs with the text 'fault devtab' what am I doing wrong? regards, Joseph Turco