Installing 2.9 BSD on SIMH
This is my quick guide to installing 2.9 BSD on SIMH
first my ini file:
set cpu 11/70 set cpu 2M set cpu fpp set cpu nocis show cpu ;set cpu idle set tti 7b set tto 7b set rl0 rl02 set rl1 rl02 set rl2 dis set rl3 dis att rl0 2.9BSD-root.rl02 att rl1 swap.rl02 set rk dis set hk dis set rq dis set tq dis set xq dis set rx dis set cr dis set rha dis set ptp dis set ptr dis set pclk ena set rp0 rm05 att rp0 test.disk att tm0 1.tap set dz lines=8 set dz 7b att dz -m 4429
This is probably a little extreme, but it does work.
You'll also need a tape image, with the files found on the TUHS archive. Alternatively I have a pre-made tape on sourceforge.
First thing boot off the magnetic tape with a 'boot tm0' from inside SIMH. I ran the 'cat' program to verify the tape is working.
CPU, 11/44, FPP, NOCIS, idle disabled, autoconfiguration enabled, 1024KB
70Boot
: tm(0,1)
cat
File: tm(0,2)
Contents of this tape:
File 0:
2 copies of magtape bootstrap (2 blocks total)
The standalone bootstrap
File 1:
A file to console copy program
File 2:
This file
File 3:
The program mkfs
File 4:
The program restor
File 5:
The program icheck
File 6:
A dump of the root file system
File 7:
A tar format dump of the /usr filesystem
(extract with: "cd /usr; tar xpf /dev/rmtX", where X is 0 or 1)
Exit called
Next we make the root filesystem
70Boot : tm(0,3) Mkfs file system: rl(0,0) file sys size: 8500 interleaving factor (m; 5 default): 5 interleaving modulus (n; 10 default): 10 isize = 5440 m/n = 5 10 Exit called
Now to restore the root dump onto the root disk
70Boot : tm(0,4) Restor Tape? tm(0,6) Disk? rl(0,0) Last chance before scribbling on disk. End of tape
As per the instructions suggestion, check the root disk's integrity.
70Boot : tm(0,5) Icheck File: rl(0,0) rl(0,0): files 238 (r=145,d=10,b=27,c=56,q=0,l=0) used 1917 (i=94,ii=0,iii=0,d=1823) free 6241 missing 0
Now we can boot 2.9BSD
70Boot : rl(0,0)rlunix Berkeley UNIX (Rev. 2.9.1) Sun Nov 20 14:55:50 PST 1983 mem = 930496 CONFIGURE SYSTEM: xp 0 csr 176700 vector 254 attached rk 0 csr 177400 vector 220 attached hk 0 csr 177440 vector 210 attached rl 0 csr 174400 vector 160 attached rp ? csr 176700 vector 254 interrupt vector already in use ht 0 csr 172440 vector 224 skipped: No CSR tm 0 csr 172520 vector 224 attached ts 0 csr 172520 vector 224 interrupt vector already in use dh ? csr 160020 vector 370 skipped: No CSR dm ? csr 170500 vector 360 skipped: No autoconfig routines dz ? csr 160110 vector 320 interrupt vector wrong dz ? csr 160110 vector 320 interrupt vector wrong dn 0 csr 175200 vector 300 skipped: No autoconfig routines vp ? csr 177500 vector 174 skipped: No autoconfig routines lp 0 csr 177514 vector 200 attached Erase=^?, kill=^U, intr=^C #
# cd /mdec # dd if=rluboot of=/dev/rl0 count=1 0+1 records in 0+1 records out
# fsck /dev/rl0 /dev/rl0 File System: / ** Checking /dev/rl0 ** Phase 1 - Check Blocks and Sizes ** Phase 2 - Check Pathnames ** Phase 3 - Check Connectivity ** Phase 4 - Check Reference Counts ** Phase 5 - Check Free List 238 files 1916 blocks 6242 free #
# cat > /etc/fstab /dev/rl0:/:rw:7:1 ^D
cd /dev sh MAKE rmt0
# df Filesystem Mounted on kbytes used free % used /dev/rl0 / 8158 1916 6242 23%
Format our xp disk
mkfs /dev/xp0h 248000
mount and restore the usr part of the tape. This takes a LONG LONG time.
mount /dev/xp0h /usr cd /usr tar xpfv /dev/rmt0
mknod swap b 8 1
cat > /etc/fstab /dev/rl0:/:rw:7:1 /dev/xp0h:/usr:rw:7:2 /dev/rl1:swap:sw:0::0
By default the auto-configuration listens to the wrong port for the DZ serial interface, and I decided to turn off devices I'm not using. This is important if you want to use the tty's
cat > /etc/dtab # Device Configuration Table # Clock and console are pre-configured and should not be listed here # # Dev# Addr Vector Br Handler(s) ; Comment xp ? 176700 254 5 xpio ; SMD disk (RP04/5/6, RM) #rk ? 177400 220 5 rkio ; RK05 #hk ? 177440 210 5 hkio ; RK06/7 rl ? 174400 160 5 rlio ; RL01/02 #rp ? 176700 254 5 rpio ; RP03 #ht 0 172440 224 5 htio ; TM03/TE16, etc. tm 0 172520 224 5 tmio ; TM-11 #ts 0 172520 224 5 tsio ; TS-11 #dh ? 160020 370 5 dhin dhou ; DH11 terminal mux #dm ? 170500 360 4 dmin ; DM-11 BB DH Modem Control dz ? 160100 300 5 dzin dzdma ; DZ11 terminal mux #dz ? 160110 320 5 dzin dzou ; DZ11 if pseudo-DMA not enabled #dn 0 175200 300 5 dnou ; DN-11 dialer # kl 1 176500 300 5 klin klou ; DL-11 #vp ? 177500 174 4 vpio ; Versatec; should be before lp lp ? 177514 200 4 lpio ; LP-11 line printer
By default it detected my putty as a CP/M adm3a terminal which wasn't even close to correct. 2.9BSD doesn't have definitions for the vt220 (it probably didn't exist yet).
cat > /etc/ttytype ansi tty00 ansi tty01 ansi tty02 ansi tty03 ansi tty04 ansi tty05 ansi tty06 ansi tty07
