Skip to content

Latest commit

 

History

History
129 lines (109 loc) · 3.98 KB

README.md

File metadata and controls

129 lines (109 loc) · 3.98 KB
Raw

Notes on oskit: 2.11BSD system on RL02 volumes

General remarks

See notes in w11a_os_guide.md on

  1. I/O emulation setup
  2. FPGA Board setup
  3. Rlink and Backend Server setup
  4. Legal terms

For history see CHANGELOG.md.

Installation

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

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

       cd $RETROBASE/tools/oskit/211bsd_rl/
       wget http://www.retro11.de/data/oc_w11/oskits/211bsd_rlset.tgz
       tar -xzf 211bsd_rlset.tgz

Usage

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

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

  • Hit <ENTER> in the xterm window to connnect 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 rl(0,0,0) at 0174400
     : {<CR>}
     : rl(0,0,0)unix
     Boot: bootdev=03400 bootcsr=0174400

     2.11 BSD UNIX #2: Sat May 20 22:55:40 PDT 2017
         root@w11a:/usr/src/sys/RETRONFPRL

     phys mem  = 3932160
     avail mem = 3577344
     user mem  = 307200

     May 20 23:28:34 init: configure system

     dz ? csr 160100 vector 310 skipped:  No CSR.
     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 non-networking system ...
     preserving editor files
     clearing /tmp
     standard daemons: update cron accounting.
     starting lpd
     starting local daemons:Sat May 20 23:28:41 PDT 2017
     May 20 23:28:41 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 runnng. You can explore
the system, e.g. with a `pstat -T` or a `mount` command. The second
`xterm` can be activated too, it will connect to a second emulated DL11.
At the end is important to shutdown properly with a `halt`:

   # {pstat -T}
     7/186 files
    40/208 inodes
    11/150 processes
     6/ 46 texts active,  31 used
     2/135 swapmap entries,  420 kB used, 2139 kB free, 2133 kB max
    34/150 coremap entries, 2906 kB free, 2818 kB max
     1/ 10  ub_map entries,   10    free,   10    max
   # {mount}
   /dev/rl0a on /
   /dev/rl1h 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: 161322  R2: 053770  R3: 000010
     R4: 003400  R5: 147510  SP: 147466  PC: 000014


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

### Provisos
- **minimal** system !! Maybe useful as recovery system.
- was useful at a time when w11a had only RK11 and RL11 type disk support
- /tmp stays on '/'
- /home is not mounted
- suitable for a 'root' user, other accounts not supported