wfjm.w11/tools/oskit/211bsd_rl

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/
       211bsd_rl_setup

System properties and intended usage

• 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

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 #3: Wed May 29 22:28:05 PDT 2019
           root@w11a:/usr/src/sys/RETRONFPRL
  
       phys mem  = 3932160
       avail mem = 3577344
       user mem  = 307200
  
       May 29 22:29:16 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 non-networking system ...
       preserving editor files
       clearing /tmp
       standard daemons: update cron accounting.
       starting lpd
       starting local daemons:Wed May 29 22:29:26 PDT 2019
       May 29 22:29:26 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}
    13/186 files
    49/208 inodes
    11/150 processes
     8/ 46 texts active,  35 used
     3/135 swapmap entries,  655 kB used, 1904 kB free, 1897 kB max
    33/150 coremap entries, 2659 kB free, 2556 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`.