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Notes on oskit: 2.11BSD system on a RP06 volume

General remarks

See notes on

System properties and intended usage

  • patch level is #447 plus fpsim+tcsh patch
  • for history see CHANGELOG.md
  • This system is created for multi-user usage without Ethernet. The RETRONFPNW kernel is configured with 
      INET    YES        # networking available
  NETHER  0          # no Ethernet
  NSL     1          # Serial Line IP enabled
  • see 211bsd_rpeth for a system with DEUNA support
  • see 211bsd_rpmin for a minimal memory system.

Installation

A disk set is available from http://www.retro11.de/data/oc_w11/oskits/211bsd_rpset.tgz

Download, unpack and copy the disk images (*.dsk), e.g.

       cd $RETROBASE/tools/oskit/211bsd_rp/
       211bsd_rp_setup

Usage

  • Start backend server and boot system (see section Rlink in w11a_os_guide)

         boot script:  211bsd_rp_boot.tcl
     example:      ti_w11 <opt> @211bsd_rp_boot.tcl
                   where <opt> is the proper option set for the board.

    or use for verification the SimH simulator (see section SimH in w11a_os_guide)

    pdp11 211bsd_rp_boot.scmd

  • Hit <ENTER> in the xterm window to connect to backend server. The boot dialog in the console xterm window will look like (required input is in {..}, with {<CR>} denoting a carriage return:

         70Boot from xp(0,0,0) at 0176700
     : {<CR>}
     : xp(0,0,0)unix
     Boot: bootdev=05000 bootcsr=0176700

     2.11 BSD UNIX #13: Wed May 29 22:05:40 PDT 2019
         root@w11a:/usr/src/sys/RETRONFPNW

     attaching sl
     attaching lo0

     phys mem  = 3932160
     avail mem = 3461952
     user mem  = 307200

     May 29 22:25:35 init: configure system
     
     dz 0 csr 160100 vector 310 attached
     lp 0 csr 177514 vector 200 attached
     rk 0 csr 177400 vector 220 attached
     rl 0 csr 174400 vector 160 attached
     tm 0 csr 172520 vector 224 attached
     xp 0 csr 176700 vector 254 attached
     cn 1 csr 176500 vector 300 attached
     erase, kill ^U, intr ^C

    In first '#' prompt the system is in single-user mode. Just enter a ^D to continue the system startup to multi-user mode:

         #^D
     Fast boot ... skipping disk checks
     Checking quotas: done.
     Assuming NETWORKING system ...
     add host w11a: gateway localhost
     starting system logger
     checking for core dump... 
     preserving editor files
     clearing /tmp
     standard daemons: update cron accounting.
     starting network daemons: inetd printer.
     starting local daemons:Wed May 29 22:25:49 PDT 2019
     May 29 22:25:49 w11a init: kernel security level changed from 0 to 1
     
     
     2.11 BSD UNIX (w11a) (console)
     
     login:

    The login prompt is sometimes mangled with system messages, if its not visible just hit <ENTER> to get a fresh one.

         login: {root}
     erase, kill ^U, intr ^C

    Now the system is in multi-user mode, daemons running. You can explore the system, e.g. with a pstat -T or a mount command.

    The second DL11 and the first four DZ11 lines can be activated too. Also simple networking via SLIP and a DZ11 line, for details see using SLIP with 211bsd.

    At the end is important to shutdown properly with a halt:

         # {pstat -T}
      49/186 files
      65/208 inodes
      16/150 processes
      11/ 46 texts active,  37 used
       3/135 swapmap entries,  530 kB used, 3649 kB free, 3642 kB max
      33/150 coremap entries, 2599 kB free, 2520 kB max
       1/ 10  ub_map entries,    8    free,    8    max
     # {mount}
     /dev/xp0a on /
     /dev/xp0c on /tmp
     /dev/xp0d on /home
     /dev/xp0e on /usr
     # {halt}
     syncing disks... done
     halting

    While the system was running the server process display the

         cpu0>

    prompt. When the w11 has halted after 211bsd shutdown a message like

         CPU down attention
     Processor registers and status:
       PS: 030350 cm,pm=k,u s,p,t=0,7,0 NZVC=1000  rust: 01 HALTed
       R0: 177560  R1: 010330  R2: 056172  R3: 000010
       R4: 005000  R5: 147510  SP: 147466  PC: 000014

    will be visible. Now the server process can be stopped with ^D.