Introduction
4BSD (November 1980) offered a number of enhancements over 3BSD, notably
job control in the previously released
csh,
delivermail (the antecedent of
sendmail), "reliable"
signals, and the
Curses programming library. In a 1985 review of BSD
releases, John Quarterman et al., wrote:
4BSD was the operating system of choice for VAXs from the beginning until the release of System III (1979–1982) [...] Most organizations would buy a 32V license and order 4BSD from Berkeley without ever bothering to get a 32V tape. Many installations inside the Bell System ran 4.1BSD (many still do, and many others run 4.2BSD).4.1BSD (June 1981) was a response to criticisms of BSD's performance relative to the dominant VAX operating system, VMS. The 4.1BSD kernel was systematically tuned up by Bill Joy until it could perform as well as VMS on several benchmarks. The release would have been called 5BSD, but after objections from AT&T the name was changed; AT&T feared confusion with AT&T's UNIX System V.
Once DARPA was funding the development of BSD, it lead to 2 big improvements from 4.1 to 4.2: the adddition of
TCP/IP, and the new
BSD Fast File System. These were beta-released in three intermediate
versions: 4.1a included BBN's preliminary
TCP/IP implementation; 4.1b included the new FFS; and 4.1c was an interim release of what
became 4.2 BSD, during the last few months of its development.
Apparently 4.1a includes the BBN TCP/IP stack, but on a 750, it only can perform at 56kb on Ethernet, and maximizes the CPU to 100%, whereas Bill Joy's TCP/IP could get upwards of 700k/sec.
Host
- Vendor: Generic
- CPU: 1 x Intel(R) Core(TM) i7-10700K CPU @ 3.80GHz 3.79 GHz
- RAM: 128GB
- OS: Windows 10 64-bits
Guest
- DEC VAX-11/780
- CPU:
- Memory:
- OS: 4.1cBSD
Virtualization
- SimH 4.1 (from GitHub)
Pending
- Additional disks
References
- 4.1cBSD tape #1 image here and tape #2 image here.
- 4.1cBSD pre-build SimH from here.
- SimH 4.1 here.
- Documentation for version SimH 4.0 here.
- Documentation for version SimH 3.12-3 here.
- Classic SimH web-site here.
- SimH VAX-11/780 documentation here.
- SIMH FAQ here.
- https://en.wikipedia.org/wiki/History_of_the_Berkeley_Software_Distribution#4BSD
- https://gunkies.org/wiki/4.1_BSD
- https://gunkies.org/wiki/Installing_4.1c_BSD_on_SIMH
Steps
- bold text is user input from the keyboard
- blue text is automatic input from SimH input processing
- red text are control characters typed by the user
-
Prepare directory structure
$ mkdir -p /cygdrive/m/Emulators/SimH/ $ mkdir -p /cygdrive/m/Emulators/SimH/mirror/ $ mkdir -p /cygdrive/m/Emulators/SimH/guests/ $ mkdir -p /cygdrive/m/Emulators/SimH/guests/vax-11-780_4-1cbsd/ $ mkdir -p /cygdrive/m/Emulators/SimH/guests/by-platform/ $ mkdir -p /cygdrive/m/Emulators/SimH/guests/by-platform/vax-11-780/ $ mkdir -p /cygdrive/m/Emulators/SimH/guests/by-os/ $ mkdir -p /cygdrive/m/Emulators/SimH/guests/by-os/4-1cbsd/ $ ln -sf /cygdrive/m/Emulators/SimH/guests/vax-11-780_4-1cbsd /cygdrive/m/Emulators/SimH/guests/by-platform/vax-11-780/4-1cbsd $ ln -sf /cygdrive/m/Emulators/SimH/guests/vax-11-780_4-1cbsd /cygdrive/m/Emulators/SimH/guests/by-os/4-1cbsd/vax-11-780
- Install cygwin
- install bzip2 (or 7z), uudecode, and wget
-
Install SimH 4.1 from here. This is another fork project from the original emulator.
$ cd /cygdrive/m/Emulators/SimH/mirror/
-
If this is the first time, make a local copy of the simulator
$ git clone https://github.com/open-simh/simh.git simh-4.1 Cloning into 'simh-4.1'... remote: Enumerating objects: 35175, done. remote: Counting objects: 100% (104/104), done. remote: Compressing objects: 100% (66/66), done. remote: Total 35175 (delta 46), reused 86 (delta 38), pack-reused 35071 Receiving objects: 100% (35175/35175), 78.76 MiB | 21.77 MiB/s, done. Resolving deltas: 100% (27237/27237), done. Updating files: 100% (1580/1580), done.
-
Otherwise, update your local copy
$ ( cd simh-4.1 && git fetch --all -v ) POST git-upload-pack (155 bytes) From https://github.com/open-simh/simh = [up to date] master -> origin/master = [up to date] Alpha-CPU -> origin/Alpha-CPU = [up to date] AsyncTmxr -> origin/AsyncTmxr = [up to date] AutoConfigure -> origin/AutoConfigure = [up to date] Bryan-HP-Current -> origin/Bryan-HP-Current = [up to date] BufferedConsole -> origin/BufferedConsole = [up to date] ControlFlow -> origin/ControlFlow = [up to date] Extra-VAXen -> origin/Extra-VAXen = [up to date] FastAsynchIO -> origin/FastAsynchIO = [up to date] HP2100Extensions -> origin/HP2100Extensions = [up to date] KDP -> origin/KDP = [up to date] SerialMux -> origin/SerialMux = [up to date] Supnik-Current -> origin/Supnik-Current = [up to date] VAX-11-BootBlock-Fixup -> origin/VAX-11-BootBlock-Fixup = [up to date] simtools -> origin/simtools = [up to date] v3.9-0-rc1 -> origin/v3.9-0-rc1 = [up to date] vms-pcap -> origin/vms-pcap -
Create the simulator machines
$ ( cd simh-4.1 && make vax780 && ./BIN/vax780 ) lib paths are: /usr/lib ../windows-build/winpcap/WpdPack/Lib /lib/ /usr/lib/ include paths are: /usr/lib/gcc/x86_64-pc-cygwin/11/include /usr/include /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../lib/../include/w32api ../windows-build/winpcap/WpdPack/Include using libm: /usr/lib/libm.a using librt: /usr/lib/librt.a using libpthread: /usr/lib/libpthread.a /usr/include/pthread.h using semaphore: /usr/include/semaphore.h using libdl: /usr/lib/libdl.a /usr/include/dlfcn.h using libedit: /usr/include/editline/readline.h using mman: /usr/include/sys/mman.h *** Warning *** *** Warning *** vax780 Simulator is being built WITHOUT *** Warning *** libpcap networking support *** Warning *** *** Warning *** To build simulator(s) with libpcap networking support you *** Warning *** should read 0readme_ethernet.txt and follow the instructions *** Warning *** regarding the needed libpcap development components for your *** Warning *** cygwin platform *** Warning *** *** Warning *** *** Warning *** vax780 Simulator is being built WITHOUT LAN networking support *** Warning *** *** Warning *** To build simulator(s) with networking support you should read *** Warning *** 0readme_ethernet.txt and follow the instructions regarding the *** Warning *** needed libpcap components for your cygwin platform *** Warning *** *** *** vax780 Simulator being built with: *** - compiler optimizations and no debugging support. GCC Version: 11.3.0. *** - WITHOUT Local LAN networking support. *** - Local LAN packet transports: NAT(SLiRP) *** - Per simulator tests will be run. *** *** git commit id is 4e159a04ed6291509b685dc06f620389b3373cce. *** git commit time is 2023-01-04T13:22:12-0700. *** gcc -std=gnu99 -U__STRICT_ANSI__ -O2 -finline-functions -fgcse-after-reload -fpredictive-commoning -fipa-cp-clone -fno-unsafe-loop-optimizations -fno-strict-overflow -DSIM_GIT_COMMIT_ID=4e159a04ed6291509b685dc06f620389b3373cce -DSIM_GIT_COMMIT_TIME=2023-01-04T13:22:12-0700 -DSIM_COMPILER="GCC Version: 11.3.0" -DSIM_BUILD_TOOL=simh-makefile -I . -Werror -D_GNU_SOURCE -DUSE_READER_THREAD -DSIM_ASYNCH_IO -DHAVE_SEMAPHORE -DHAVE_SYS_IOCTL -DSIM_HAVE_DLOPEN=a -DHAVE_EDITLINE -DHAVE_UTIME -DHAVE_GLOB -DHAVE_SHM_OPEN ./VAX/vax_cpu.c ./VAX/vax_cpu1.c ./VAX/vax_fpa.c ./VAX/vax_cis.c ./VAX/vax_octa.c ./VAX/vax_cmode.c ./VAX/vax_mmu.c ./VAX/vax_sys.c ./VAX/vax_syscm.c ./VAX/vax780_stddev.c ./VAX/vax780_sbi.c ./VAX/vax780_mem.c ./VAX/vax780_uba.c ./VAX/vax7x0_mba.c ./VAX/vax780_fload.c ./VAX/vax780_syslist.c ./PDP11/pdp11_rl.c ./PDP11/pdp11_rq.c ./PDP11/pdp11_ts.c ./PDP11/pdp11_dz.c ./PDP11/pdp11_lp.c ./PDP11/pdp11_tq.c ./PDP11/pdp11_xu.c ./PDP11/pdp11_ry.c ./PDP11/pdp11_cr.c ./PDP11/pdp11_rp.c ./PDP11/pdp11_tu.c ./PDP11/pdp11_hk.c ./PDP11/pdp11_vh.c ./PDP11/pdp11_dmc.c ./PDP11/pdp11_dup.c ./PDP11/pdp11_td.c ./PDP11/pdp11_tc.c ./PDP11/pdp11_rk.c ./PDP11/pdp11_io_lib.c ./PDP11/pdp11_ch.c ./scp.c ./sim_console.c ./sim_fio.c ./sim_timer.c ./sim_sock.c ./sim_tmxr.c ./sim_ether.c ./sim_tape.c ./sim_disk.c ./sim_serial.c ./sim_video.c ./sim_imd.c ./sim_card.c -DVM_VAX -DVAX_780 -DUSE_INT64 -DUSE_ADDR64 -I ./VAX -I ./PDP11 -Islirp -Islirp_glue -Islirp_glue/qemu -DHAVE_SLIRP_NETWORK -DUSE_SIMH_SLIRP_DEBUG slirp/*.c slirp_glue/*.c -DUSE_NETWORK -o BIN/vax780 -lm -lrt -lpthread -ldl -ledit BIN/vax780 RegisterSanityCheck /cygdrive/m/Emulators/SimH/mirror/simh-4.1/VAX/tests/vax-diag_test.ini </dev/null Running internal register sanity checks on VAX 11/780 simulator. *** Good Registers in VAX 11/780 simulator. VAX 11/780 simulator Open SIMH V4.1-0 Current git commit id: 4e159a04 Running Hardware Core Test (EVKAA) *** PASSED - VAX 11/780 Hardware Core Instruction test EVKAA Starting VAX Diagnostic Supervisor Missing Regular Expression support - skipping EVKAB test VAX 11/780 simulator Open SIMH V4.1-0 Current git commit id: 4e159a04 sim> exit Goodbye
-
The simulator program is available in the BIN directory from the compiled git repository. To make life easier, the best is to create a link to the program. I can create a link into /usr/bin or into the guest directory.
I will go with the later.
$ cd /cygdrive/m/Emulators/SimH/guests/vax-11-780_4-1cbsd $ ln -s ../../mirror/simh-4.1/BIN/vax780.exe vax780-4.1.exe $ ls -laF vax780-4.1.exe lrwxrwxrwx 1 afberendsen None 36 Feb 19 15:26 vax780-4.1.exe -> ../../mirror/simh-4.1/BIN/vax780.exe*
- If using the pre-build image
-
Download pre-build image
$ wget https://pspodcasting.net/simh/41cbsd.tar.gz --2023-02-22 23:08:37-- https://pspodcasting.net/simh/41cbsd.tar.gz Resolving pspodcasting.net (pspodcasting.net)... 37.221.196.112 Connecting to pspodcasting.net (pspodcasting.net)|37.221.196.112|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 9915304 (9.5M) [application/octet-stream] Saving to: ‘41cbsd.tar.gz’ 41cbsd.tar.gz 100%[=============================================================>] 9.46M 8.87MB/s in 1.1s 2023-02-22 23:08:38 (8.87 MB/s) - ‘41cbsd.tar.gz’ saved [9915304/9915304] $ -
Unpack package
$ 7z x 41cbsd.tar.gz 7-Zip [64] 15.14 : Copyright (c) 1999-2015 Igor Pavlov : 2015-12-31 p7zip Version 15.14.1 (locale=en_GB.UTF-8,Utf16=on,HugeFiles=on,64 bits,16 CPUs Intel(R) Core(TM) i7-10700K CPU @ 3.80GHz (A0655),ASM,AES-NI) Scanning the drive for archives: 1 file, 9915304 bytes (9683 KiB) Extracting archive: 41cbsd.tar.gz -- Path = 41cbsd.tar.gz Type = gzip Headers Size = 10 Everything is Ok Size: 456243200 Compressed: 9915304 $ tar -xv --strip-components=1 -f 41cbsd.tar 41cbsd/rq.dsk 41cbsd/41cbsd.ini 41cbsd/boot42 41cbsd/README $ mv 41cbsd.ini dboot.ini $ ls -lF -rw-r--r--+ 1 afberendsen None 225 Jan 21 01:13 dboot.ini -rw-r--r--+ 1 afberendsen None 456243200 Jan 27 11:08 41cbsd.tar -rw-rw-rw-+ 1 afberendsen None 9915304 Jan 27 11:08 41cbsd.tar.gz -rw-r--r--+ 1 afberendsen None 2665 Jan 26 23:13 README -rw-------+ 1 afberendsen None 6600 Jan 21 01:13 boot42 -rw-r--r--+ 1 afberendsen None 456228864 Jan 26 21:51 rq.dsk lrwxrwxrwx 1 afberendsen None 36 Feb 22 23:08 vax780-4.1.exe -> ../../mirror/simh-4.1/BIN/vax780.exe* $
- If using the tape image
- Transfer contents of tape to disk
-
Create tboot.ini file to allow the initial disk set-up and code transfer from the tape.
set tto 7b set rq dis set lpt dis set rl dis set hk dis set rq dis set rqb dis set rqc dis set rqd dis set ry dis set ts dis set tq dis set dz lines=8 set rp0 rp06 attach rp0 rp06.disk set tu0 te16 attach tu0 4.1_BSD_19810710-modified.tap SET DEBUG -FN expect-data.dbg SET CON-TELNET DEBUG=EXP;SND D 50000 20009FDE D 50004 D0512001 D 50008 3204A101 D 5000C C113C08F D 50010 A1D40424 D 50014 008FD00C D 50018 C1800000 D 5001C 8F320800 D 50020 10A1FE00 D 50024 00C139D0 D 50028 04c1d004 D 5002C 07e15004 D 50030 0000f750 expect "=" send "mkfs\n"; continue expect "file sys size:" send "7942\n"; continue expect "file system:" send "hp(0,0)\n"; continue expect "=" send "restor\n"; continue expect "Tape?" send "ht(0,1)\n"; continue expect "Disk?" send "hp(0,0)\n"; continue expect "Last chance before scribbling on disk." send "\n boot\n"; continue expect "=" send "boot\n"; continue expect ":" send "hp(0,0)vmunix\n"; continue expect "root device?" send "hp0\n"; continue expect "#" send "fsck /dev/rhp0a\n"; continue expect "#" send "mkfs /dev/hp0g 145673\n"; continue expect "#" send "cd /dev; MAKE ht0; cd /\n"; continue expect "#" send "/etc/mount /dev/hp0g /usr; cd /usr; mt rew; mt fsf 2; tar xpb 20\n"; continue expect "#" send "dd if=/usr/mdec/uboot of=/dev/rhp0a bs=1b count=1\n"; continue expect "#" send "cp /etc/fstab.rp06 /etc/fstab ; df\n"; continue expect "#" send "cd /; chmod 755 / /usr\n"; continue expect "#" send "ls /etc /bin /usr/bin\n"; continue expect "#" send " /etc/shutdown -h +1\n"; continue run 50000 run 0 quit -
Start-up the simulator with the tape boot ini file. This will transfer the OS from the tape into the virtual disk and leave the system ready for boot.
$ ./vax780-4.1.exe tboot.ini VAX 11/780 simulator Open SIMH V4.1-0 Current git commit id: 4e159a04 /cygdrive/m/Emulators/SimH/guests/vax-11-780_4-1bsd/tboot.ini-17> attach tu0 4.1_BSD_19810710-modified.tap %SIM-INFO: TU0: unit is read only %SIM-INFO: TU0: Tape Image '4.1_BSD_19810710-modified.tap' scanned as SIMH format /cygdrive/m/Emulators/SimH/guests/vax-11-780_4-1bsd/tboot.ini-19> SET DEBUG -FN expect-data.dbg %SIM-INFO: Debug output to "expect-data.dbg" %SIM-INFO: Debug messages will not be filtered to summarize duplicate lines HALT instruction, PC: 00050033 (HALT) Resetting all devices... This may not have been your intention. The GO and CONTINUE commands do not reset devices. =mkfs file sys size: 7942 file system: hp(0,0) isize = 5072 m/n = 3 500 =restor Tape? boot Bad device Tape? ht(0,1) Disk? hp(0,0) Last chance before scribbling on disk.ENTER End of tape =boot Boot : hp(0,0)vmunix 123060+27528+24628 start 0xF5C Berkeley VAX/UNIX Version 4.9 Wed Feb 17 15:27:46 PST 1982 real mem = 8322048 avail mem = 7738368 mcr0 at tr1 mcr1 at tr2 uba0 at tr3 dz0 at uba0 csr 160100 vec 300, ipl 15 mba0 at tr8 hp0 at mba0 drive 0 hp1 at mba0 drive 1 hp2 at mba0 drive 2 hp3 at mba0 drive 3 mba1 at tr9 ht0 at mba1 drive 0 tu0 at ht0 slave 0 tu1 at ht0 slave 1 root device? hp0 WARNING: preposterous time in file system -- CHECK AND RESET THE DATE! WARNING: should run interleaved swap with >= 2Mb erase ^?, kill ^U, intr ^C # fsck /dev/rhp0a /dev/rhp0a File System: ** Checking /dev/rhp0a ** Phase 1 - Check Blocks and Sizes ** Phase 2 - Check Pathnames ** Phase 3 - Check Connectivity ** Phase 4 - Check Reference Counts ** Phase 5 - Check Free List 663 files 4277 blocks 3346 free # mkfs /dev/hp0g 145673 isize = 65488 m/n = 3 500 # cd /dev; MAKE ht0; cd / # /etc/mount /dev/hp0g /usr; cd /usr; mt rew; mt fsf 2; tar xpb 20 # dd if=/usr/mdec/uboot of=/dev/rhp0a bs=1b count=1 1+0 records in 1+0 records out # cp /etc/fstab.rp06 /etc/fstab ; df Filesystem Mounted on kbytes used free % used /dev/hp0a / 7623 4278 3345 56% /dev/hp0g /usr 141578 9198 132380 6% # cd /; chmod 755 / /usr # ls /etc /bin /usr/bin /bin: [ chk df false mail nohup rm stty true adb chmod diff grep make od rmail su ucbls ar cmp du kill mkdir oldcsh rmdir sync wall as cp e ld mt passwd sed tar who awk csh echo ln mv pr sh test write cat date ed login nice ps size time cc dd expr ls nm pwd strip tp /etc: 512restor comsat fstab.rm03 mknod shutdown ac config fstab.rm05 motd swapon accton cron fstab.rm80 mount termcap analyze dcheck fstab.rp06 mtab ttys arcv delivermail fstab.rp07 ncheck ttytype arff dmesg fstab.up160m passwd umount arff.bak dump fstab.up300m pstat update bad144 dumpdates getty quot utmp badsect dumpdir group rc vipw catman flcopy halt reboot wall chgrp fsck icheck renice chk fstab init restor chown fstab.ra80 mkfs sa clri fstab.rk07 mklost+found savecore /usr/bin: ar11 crypt explain look ptx spline tc uuclean at cu f77 lookbib ranlib split tee uucp basename dc fgrep lorder ratfor struct tek uulog bc deroff file m4 refer style tk uuname cal diction find man rev sum touch uusend calendar diff3 graph mesg sdb t300 tr uux call efl install neqn sleep t300s troff vplot cb egrep iostat newgrp sort t450 tsort wc checkeq enroll join nroff spell tabs tty xget col eqn lex plot spellin tail uniq xsend comm ex lint prof spellout tbl units yacc # /etc/shutdown -h +1 Shutdown at 12:01 (in 1 minute) [pid 107] # System shutdown time has arrived syncing disks... done halting (in tight loop); hit ^P HALT CTRL+E Infinite loop, PC: 80003AD5 (BRB 80003AD5) Goodbye %SIM-INFO: Debug output disabled $
- (once) Create the boot loader.
-
Create a file called boot.uue, with following contents
begin 644 boot M``#:'Q+0CP``!0!>T`&?!``!(-`!GP0@`2#0`9\$8``@PX_D%@4`CY@Y!0!0 MPX\```4`C^06!0!1+`!N`%!A*.]_$P``GP````!N%_]O$P``^P#O'````-"/ M```%`%X7[^S___\``-"/```%`%X7GU$`!0```,($7M_O21,``/L![RH.``#? M[T,3``#[`>\=#@``W^^+.```^P'O"!```-T`W^]\.```^P+OV08``-!0K?S5 M4!G/W5#[`>\"````!```#,(D7M"L!%O=(-^MX-U;^P/O7P4``-!06M%:(!(* MT:W@CP@!```3#=_OX1(``/L![V((``#=K>3?[]T2``#[`N^H#0``W:WDW0#= M6_L#[R(%``#14*WD$P,QD0#0K>2MW!$)T*W<4-:MW)1@TX__`P``K=P2[=VM MZ-_OGQ(``/L"[V<-``#=K>C=K=S=6_L#[^`$``#14*WH$E+`K>BMW-VM[-_O M>1(``/L"[ST-``#`CP```0"M[-1:$0O0K=Q0UJW<EBM%:K>P?[^4?K?0` MW:WTW^]+$@``^P+O"PT``/L`O?3[`.\($@``W^]`$@``^P'OG0<```0````, MT*P(6]2K?,$?K`10QA!0>`%04,&K=%#+@``RCP`$RX@`P8^,````6\N$`-U; M^P'OD@<``,&/C````%M:P1^L!%#'$%!1Q!!1PU%047@&45#`4%KWK`2K"+!J MJPK0J@BK%-T-P0Q:?L$86W[[`^]@$0``!```#,((7M"L!%L3!)5K$FK?[[T1 M``#[`>]>#```$5C66Y%K+Q/YT%M:$0:5:A,'UEJ1:B\2]9!JK?^4:MVL"-U; M^P+O:P$``-!0K?@3&I6M_Q,XW:P(W5#[`N\L____D*W_:M!:6Q$?W5O?[VX1 M``#[`N\$#```U%`$W:P(/`)^^P+O!/___Y5K$I;0K?A0!```#L(47M"L!%O0 MK`BM[,$$6UG5K`@8"=_O/A$``#%E_]&L"`H8#]"L"%K02JD4K?30K?10!-2M M^-`!K?3""JP(T`.M_!$9P`BM^'@(K?2M]-&L"*WT&0W"K?2L"->M_-6M_!3B MU:W\$@S=K`C?[_80```Q:O_#K?P-4-!`J12M]!(/W:P(W^_H$```,5'_UJW\ MT:W\`Q29T*W\4-%`[WPC``"M]!-&>`&M]%#!JW10RX``>`JM_%">0.]@$P`` MRX0`,H\`!,N(`-U;^P'O\04``'@*K?Q0GD#O01,``*WPT*W\4-"M]$#O,B,` M`'@*K?Q0GD#O)A,``*WPP@BM^,ZM^%!X4*P(4)I06M!*O?"M]!,#,7G_W:P( MW^]A$```,;[^```.P@Q>T*P(6]6L!!(#,;/^E;P$$_C!!%M9/*D&4,J/_P__ M_U#14(\`0```$PG?[S40```Q+/['$*D0K?@2"=_O-1```#$;_C*/``2M]-2M M_!%HUJWTT:WTCT`````90M"M_%#6K?S=4-U;^P+O;/[__W@!4%#!JW10RX`` MP8^,````6\N$`#*/``3+B`#=6_L![PD%``#!CXP```!;6M2M],$"6G[=K`3[ M`N\:````U5`3!#QJ4`3`$%K0K?A0UZWXU5`2C3'[_0``#M"L!%O0K`A:T`Y9 MT%E0UUG54!,0D6MJ$P,QW/V5BQ,$E8H2Y]`!4`0`"-6L#!,1W^^0#P``^P'O MP`D``,X!4`3"`ZP$&?;1K`0$&/#%CXP$``"L!%#`C_0F!0!0T%!;X0)@V="L M"*M\QX\`!```K`A0>`%04,&K=%#+@`#4RX@`U%`$```.P@1>U:P$&0[1K`0" M%`C[`.\G"P``!,(#K`09'=&L!`08%\6/C`0``*P$4,"/]"8%`%#04%O@`F`$ MS@%0!-#+A`!:U<N(`!4#,:``QX\`!```JWQ0>`%0RX``X0-K&L<"RX``?MU; M^P+O'_W__W@!4%#!JW10RX``P8^,````6\N$`#*/``3+B`#=6_L![[P#``#A M`VM%QX\`!```JWQ0Q(\`!```4,-0JWRM_,.M_(\`!```4,"K?%#14*L4&0W# MJWRK%%#!K?Q0RX@`PJW\RX@`U<N(`!0&,5[_U*W\P8^,````6U#!K?Q06M?+ MB`#6JWR8BEG06LN$`-!94`0`#-6L!!D%T`%0$0+44-&L!`(4!=`!41$"U%'2 M45'*45`3)="L#%O[`.\0"@``]E"\"-=;$PS0K`A0UJP(D6`*$N7#6ZP,4`3" M`ZP$&1W1K`0$&!?%CXP$``"L!%#`C_0F!0!0T%!:X`)@!,X!4`3I:OG@`VHA MT*P,RH@`T*P(RH0`W5K[`>_%`@``T%!;P`+*@`#06U`$P:P,JGQ0T5"J%!4' MPZI\JA2L#-"L#%L4`]10!,$#K`1^^P'O0?[__]"L"%'6K`CV4&'76Q+FT*P, M4`0`#-6L!!DKT:P$`A0ET*P,6Q$1T*P(4-:L")A@?OL![^`(``#06U#76]50 M$N;0K`Q0!,(#K`09'=&L!`08%\6/C`0``*P$4,"/]"8%`%#04%K@`F`$S@%0 M!.$!:OC0K`S*B`#0K`C*A`#=6OL![RH"``#04%O``LJ``-!;4`0`#L((7M7O M<0P``!,>U*W\Q8^,!```K?Q0E$#O3!\``/($K?SKU.]1#```U*WXQ8^,!``` MK?A0E4#O+A\``!,2\@2M^.G?[\<,``#[`>^``0``Q8^,!```K?A0P(_T)@4` M4-!06H@$8-"L!%L1!Y%K*!,&UEN5:Q+UD6LH$R#?[Z$,```1"\`061$<W^^@ M#```^P'OD`8``)1JS@%0!)2+WN\�``6=5I$^#=:=VL!/L"[W/\___54!/+ M]BBK_\./-!4%`%E0QA!0]U"J!IB+4,,P4*IPU:IP&0;1JG`'%0C?[UH,```1 MJ)&++!,(W^]A#```$9O=6_L![[$*``#04*IT$025BQ/ED6LI$O?=6OL![R4! 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Decode the text file into a binary file.
$ uudecode boot.uue $ ls -la boot -rw-r--r--+ 1 afberendsen None 5860 Feb 20 22:41 boot -
Create a dboot.ini file which will be used to load the OS
set tto 7b set rq dis set lpt dis set rl dis set hk dis set rq dis set rqb dis set rqc dis set rqd dis set ry dis set ts dis set tq dis set dz lines=8 set rp0 rp06 at rp0 rp06.disk set tu0 te16 load -o boot 0 expect ":" send "hp(0,0)vmunix\n"; continue expect "root device?" send "hp0\n"; continue expect "#" send "\x04\n"; continue run 2 -
Load the simulator for 4BSD
$ ./vax780-4.1.exe dboot.ini VAX 11/780 simulator Open SIMH V4.1-0 Current git commit id: 4e159a04 Boot : hp(0,0)vmunix 123060+27528+24628 start 0xF5C Berkeley VAX/UNIX Version 4.9 Wed Feb 17 15:27:46 PST 1982 real mem = 8322048 avail mem = 7738368 mcr0 at tr1 mcr1 at tr2 uba0 at tr3 dz0 at uba0 csr 160100 vec 300, ipl 15 mba0 at tr8 hp0 at mba0 drive 0 hp1 at mba0 drive 1 hp2 at mba0 drive 2 hp3 at mba0 drive 3 mba1 at tr9 ht0 at mba1 drive 0 tu0 at ht0 slave 0 tu1 at ht0 slave 1 root device? hp0 WARNING: clock lost 132 days -- CHECK AND RESET THE DATE! WARNING: should run interleaved swap with >= 2Mb erase ^?, kill ^U, intr ^C # ^D Sun Feb 22 21:17:04 GMT 1976 Mounted /usr on /dev/hp0g preserving editor files clearing /tmp starting daemons: update cron accounting network mail printer. Sun Feb 22 21:17:04 GMT 1976 Berkeley 4.1 VAX/UNIX (Amnesia-Vax) login:
-
Authenticate with root account
login: root Last login: Tue Nov 11 10:13:06 on tty?? Welcome to Virtual Vax/UNIX. Erase set to control-H # -
Shutdown system
# /etc/shutdown -h +1 Shutdown at 21:21 (in 1 minute) [pid 61] *** System shutdown message from root *** System going down in 60 seconds # *** System shutdown message from root *** System going down in 30 seconds Sun Feb 22 21:21:00 GMT 1976 *** System shutdown message from root *** System going down in 20 seconds *** System shutdown message from root *** System going down in 10 seconds *** System shutdown message from root *** System going down IMMEDIATELY *** System shutdown message from root *** System going down IMMEDIATELY System shutdown time has arrived syncing disks... done halting (in tight loop); hit ^P HALT Infinite loop, PC: 80003AD5 (BRB 80003AD5) sim> q Goodbye $
First look
Pre-packaged version
$ ./vax780-4.1.exe dboot.ini VAX 11/780 simulator Open SIMH V4.1-0 Current git commit id: 4e159a04 /cygdrive/m/Emulators/SimH/guests/vax-11-780_4-1cbsd/dboot.ini-17> att dz -m 4000 %SIM-INFO: Listening on port 4000 Modem control activated loading ra(0,0)boot Boot : ra(0,0)vmunix 215688+63964+69764 start 0xf98 4.1c BSD UNIX #1: Sun Mar 27 14:48:45 PST 1983 real mem = 8384512 avail mem = 7036928 using 148 buffers containing 838656 bytes of memory mcr0 at tr1 mcr1 at tr2 uba0 at tr3 hk0 at uba0 csr 177440 vec 210, ipl 15 rk0 at hk0 slave 0 rk1 at hk0 slave 1 uda0 at uba0 csr 172150 vec 774, ipl 15 ra0 at uda0 slave 0 ra1 at uda0 slave 1 zs0 at uba0 csr 172520 vec 224, ipl 15 ts0 at zs0 slave 0 dz0 at uba0 csr 160100 vec 300, ipl 15 root on ra0 WARNING: should run interleaved swap with >= 2Mb Automatic reboot in progress... Tue Feb 22 15:18:05 PST 1983 /dev/rra0a: 287 files, 3329 used, 4100 free (12 frags, 511 blocks) /dev/rra0h: 3077 files, 22805 used, 339055 free (187 frags, 84717 blocks) /dev/rra0g: 2 files, 9 used, 77750 free (14 frags, 9717 blocks) Tue Feb 22 15:18:06 PST 1983 local daemons: telnetd ftpd tftpd syslog sendmail. preserving editor files clearing /tmp standard daemons: update cron accounting berknet mail printer. starting network: routed. Tue Feb 22 15:18:07 PST 1983 ucbmonet login: root Last login: Tue Feb 22 15:16:41 on console 4.1c BSD UNIX #1: Sun Mar 27 14:48:45 PST 1983 Master source now lives here; freeze your 4.1c stuff now. monet# ls -la total 731 drwxrwxr-x 2 root 24 Jan 26 13:08 -p drwxr-xr-x 14 root 512 Jan 26 13:08 . drwxr-xr-x 14 root 512 Jan 26 13:08 .. -rw-r--r-- 1 root 803 Nov 14 16:40 .cshrc -rwxr-xr-x 1 root 0 Feb 12 14:45 .history -rw-r--r-- 1 root 111 Jan 26 13:17 .login -rw-r--r-- 1 root 132 Jan 26 13:18 .profile -rw-r--r-- 1 root 30 Feb 8 01:08 .rhosts drwxrwxrwx 3 root 512 Jan 26 13:08 a drwxrwxrwx 2 root 24 Feb 12 14:45 arch drwxr-xr-x 2 root 1024 Jan 20 16:41 bin -rwxr-xr-x 1 root 18432 Apr 4 1983 boot -rwxr-xr-x 1 root 22528 Apr 4 1983 copy drwxr-xr-x 2 root 1536 Jan 20 16:44 dev -rwxr-xr-x 1 root 18432 Apr 4 1983 drtest drwxr-xr-x 2 root 2048 Feb 22 15:18 etc -rwxr-xr-x 1 root 21504 Apr 4 1983 format -rwxr-xr-x 1 root 319488 Mar 27 1983 genvmunix drwxr-xr-x 2 root 512 Mar 3 1983 lib drwxr-xr-x 2 root 8192 Feb 13 00:38 lost+found drwxr-xr-x 3 root 44 Jan 20 17:07 mnt lrwxrwxrwx 1 root 8 Jan 20 17:06 sys -> /usr/sys drwxrwxrwx 2 root 512 Feb 22 15:18 tmp drwxr-xr-x 2 root 512 Feb 12 15:39 tp drwxr-xr-x 26 root 512 Jan 26 13:09 usr -rwxr-xr-x 1 root 319488 Mar 27 1983 vmunix monet# df Filesystem kbytes used avail capacity Mounted on /dev/ra0a 7429 3330 3356 50% / /dev/ra0g 38879 4 34987 0% /mnt /dev/ra0h 361860 22806 302868 7% /usr monet# mount ra0g on /mnt ra0h on /usr monet# echo $PATH /etc:/usr/ucb:/bin:/usr/bin:/usr/local:/usr/hosts:. monet# ls /etc /bin /usr/bin /bin: [ chgrp diff hostid make pagesize sed tee adb chmod du hostname mkdir passwd sh test ar cmp e kill mt pr size time as cp echo ld mv ps strip tp awk csh ed ln nice pwd stty true btlgrep date expr login nm rm su wall cat dd false ls nohup rmail sync who cc df grep mail od rmdir tar write /etc: ac flcopy group newfs rwhod accton fsck halt pac sa analyze fstab hosts passwd savecore arff fstab.hp hosts.equiv printcap services atrun fstab.ra60 hosts.local protocols shutdown bad144 fstab.ra80 htable pstat swapon badsect fstab.ra81 icheck quot syslog catman fstab.rb80 implogd rc syslog.conf chk fstab.rk07 init rc.bak telnetd chown fstab.rm03 kgmon rc.local termcap clri fstab.rm05 lpdrestart rdump tftpd comsat fstab.rm80 makekey reboot ttys config fstab.rp06 makewhatis renice ttytype cron fstab.rp07 mkfs restor tunefs dcheck fstab.up mklost+found rexecd umount diskpart fstab.up160m mknod rlogind update disktab fstab.up300m mkproto rmt utmp dmesg ftpd motd route vipw dump ftpusers mount routed vipw.lock dumpdates getNAME mtab rrestor vpac dumpfs gettable ncheck rrestore fastboot getty networks rshd /usr/bin: ar11 deroff file lorder ratfor style touch uuname basename diction find m4 refer sum tr uusend bc diff3 graph man rev t300 troff uux cal efl install mesg sleep t300s tsort vplot calendar egrep iostat neqn sort t450 tty xget cb enroll join nohup spell tabs uniq xsend checkeq eqn learn nroff spellin tbl units yacc col ex lex plot spellout tc uucp comm explain lint prof spline tek uudecode crypt f77 look ptx split tip uuencode dc fgrep lookbib ranlib struct tk uulog monet# dmesg Feb 22 15:18 4.1c BSD UNIX #1: Sun Mar 27 14:48:45 PST 1983 real mem = 8384512 avail mem = 7036928 using 148 buffers containing 838656 bytes of memory mcr0 at tr1 mcr1 at tr2 uba0 at tr3 hk0 at uba0 csr 177440 vec 210, ipl 15 rk0 at hk0 slave 0 rk1 at hk0 slave 1 uda0 at uba0 csr 172150 vec 774, ipl 15 ra0 at uda0 slave 0 ra1 at uda0 slave 1 zs0 at uba0 csr 172520 vec 224, ipl 15 ts0 at zs0 slave 0 dz0 at uba0 csr 160100 vec 300, ipl 15 root on ra0 WARNING: should run interleaved swap with >= 2Mb monet# ps aux USER PID %CPU %MEM SZ RSS TT STAT TIME COMMAND root 89 0.0 1.1 218 152 co S 0:00 -csh (csh) root 62 0.0 0.2 58 26 ? I 0:00 /etc/cron root 1 0.0 0.2 60 22 ? I 0:00 init root 51 0.0 1.3 280 186 ? I 0:00 /usr/lib/sendmail -bd -q1h root 59 0.0 0.1 44 6 ? S 0:00 /etc/update root 99 0.0 0.8 190 104 co R 0:00 ps aux root 33 0.0 0.4 138 46 ? I 0:00 /etc/ftpd root 2 0.0 0.2 2368 0 ? D 0:00 pagedaemon root 0 0.0 0.1 0 0 ? D 0:00 swapper root 81 0.0 0.6 120 78 ? S 0:00 ph/log vx root 70 0.0 0.2 86 23 ? I 0:00 /etc/comsat root 90 0.0 0.5 114 70 ? S 0:00 /etc/routed root 72 0.0 0.2 86 25 ? S 0:00 /etc/comsat root 41 0.0 0.3 84 32 ? I 0:00 /etc/tftpd daemon 44 0.0 0.4 92 44 ? I 0:00 /etc/syslog root 49 0.0 0.3 94 30 ? I 0:00 /etc/telnetd monet# who root console Feb 22 15:18 monet# iostat 5 tty rk0 rk1 ra0 ra1 cpu tin tout sps tps msps sps tps msps sps tps msps sps tps msps us ni sy id 1 70 0 0 0.0 0 0 0.0 0 62 0.0 0 0 0.0 3 0 1 97 0 9 0 0 0.0 0 0 0.0 0 1 0.0 0 0 0.0 0 0 0100 0 9 0 0 0.0 0 0 0.0 0 0 0.0 0 0 0.0 0 0 0100 0 9 0 0 0.0 0 0 0.0 0 0 0.0 0 0 0.0 0 0 0100 0 9 0 0 0.0 0 0 0.0 0 0 0.0 0 0 0.0 0 0 0100 CTRL+C^Cmonet# /etc/shutdown -h +1 Shutdown at 15:20 (in 1 minute) [pid 103] monet# *** System shutdown message from ucbmonet!root *** System going down in 60 seconds *** FINAL System shutdown message from ucbmonet!root *** System going down in 30 seconds *** FINAL System shutdown message from ucbmonet!root *** System going down IMMEDIATELY System shutdown time has arrived syncing disks... done halting (in tight loop); hit ^P HALT Infinite loop, PC: 800200A0 (BRB 800200A0) sim> q Goodbye $
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