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

Will Senn will.senn at gmail.com
Thu Oct 21 09:14:46 AEST 2021

Hi Joseph,

# cp hptmconf myconfnf
# echo 4dc >> myconf

looks like a typo. If you actually typed this, all that would be in 
myconf would be 4dc. You need the contents of hptmconf plus 4dc. 
Otherwise you'd be missing some important devices.


On 10/20/21 5:50 PM, joseph turco wrote:
> 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

More information about the TUHS mailing list