More NET/2 to 386BSD 0.0 fun

I just got an email that the ‘officially sanctioned’ patches to Net/2 are still located here.  Just about every 386BSD 0.0 mirror that survives is missing these files.  So I made a copy of them on mine, here.

This dates the patches to February 26th 1992, and all the 3 1/2″ binaries being the 4th of March 1992.  And for more confusion the 5 1/4″ floppies date to the 17th of March.  The 40kb worth of user patches ended around June of 1992.

Also of interest is the Dr Dobbs articles…

Porting Unix to the 386: a Practical Approach.

PORTING UNIX TO THE 386: THREE INITIAL PC UTILITIES

Porting Unix to the 386: Research & the Commercial Sector Where does BSD fit in? 

 

Happy new year!

I thought I’d go ahead and see if I could get Net/2 to build on my own.

Net/2

Net/2

Well it compiles, and tries to boot….   Sadly there is no adb or gdb support.  How on earth did people debug this stuff then?  I’m not sure where the crash location is, or what to do about it.  But I thought this was really cool.

I’ve also tried to track down 4.4BSD encumbered, which was released around the same time as the 4.4BSD-Lite1 which was after the AT&T vs BSDi/CSRG thing..  Or even the release that parallels the Net/2 release…

Anyways, happy 2014!

Old BSD musings

I was thinking after rebuilding the Mach disk, that back in the say it was insinuated that the changes from Net/2 to 386BSD 0.0 were quite minimal.  So I figured I should take a look.  The first thing to do would be to clean up Net/2’s kernel to look more like 386 BSD’s.  This was trivial as there wasn’t much of anything structure wise done.  Running the patch was pretty easy:

$ diff -ruN ../../../../net.2/sys . > /tmp/net2-386bsd00.patch

The patch is about 1MB.  Much larger than I expected!  Applying the patch to Net/2 shows that a substantial amount of files changed:

$ patch -p0 < /tmp/net2-386bsd00.patch
patching file ./conf/files
patching file ./i386/conf/GENERIC.i386
patching file ./i386/conf/Makefile.i386
patching file ./i386/conf/devices.i386
patching file ./i386/conf/files.i386
patching file ./i386/i386/autoconf.c
patching file ./i386/i386/conf.c
patching file ./i386/i386/genassym.c
patching file ./i386/i386/locore.s
patching file ./i386/i386/machdep.c
patching file ./i386/i386/pmap.c
patching file ./i386/i386/symbols.raw
patching file ./i386/i386/trap.c
patching file ./i386/i386/vm_machdep.c
patching file ./i386/include/psl.h
patching file ./i386/isa/com.c
patching file ./i386/isa/fd.c
patching file ./i386/isa/isa.c
patching file ./i386/isa/npx.c
patching file ./i386/isa/pccons.c
patching file ./i386/isa/wd.c
patching file ./i386/isa/wt.c
patching file ./i386/stand/Makefile
patching file ./i386/stand/bmap.c
patching file ./i386/stand/boot.c
patching file ./i386/stand/bootxx.c
patching file ./i386/stand/breadxx.c
patching file ./i386/stand/cga.c
patching file ./i386/stand/conf.c
patching file ./i386/stand/confxx.c
patching file ./i386/stand/fd.c
patching file ./i386/stand/fdbootblk.c
patching file ./i386/stand/fs.c
patching file ./i386/stand/kbd.c
patching file ./i386/stand/libsa/Makefile
patching file ./i386/stand/libsmsa/Makefile
patching file ./i386/stand/prf.c
patching file ./i386/stand/saio.h
patching file ./i386/stand/srt0.c
patching file ./i386/stand/trimhd.c
patching file ./i386/stand/wd.c
patching file ./kern/Makefile
patching file ./kern/init_main.c
patching file ./kern/kern__physio.c
patching file ./kern/kern_descrip.c
patching file ./kern/kern_exec.c
patching file ./kern/kern_execve.c
patching file ./kern/kern_exit.c
patching file ./kern/kern_fork.c
patching file ./kern/kern_malloc.c
patching file ./kern/kern_physio.c
patching file ./kern/kern_proc.c
patching file ./kern/kern_sig.c
patching file ./kern/kern_subr.c
patching file ./kern/makesyscalls.sh
patching file ./kern/subr_rlist.c
patching file ./kern/subr_rmap.c
patching file ./kern/sys_process.c
patching file ./kern/syscalls.master
patching file ./kern/tty.c
patching file ./kern/tty_pty.c
patching file ./kern/tty_ring.c
patching file ./kern/tty_subr.c
patching file ./kern/uipc_mbuf.c
patching file ./kern/vfs__bio.c
patching file ./kern/vfs_bio.c
patching file ./net/af.h
patching file ./net/bpf.c
patching file ./net/bpf.h
patching file ./net/bpfdesc.h
patching file ./net/if.h
patching file ./net/if_arp.h
patching file ./net/if_dl.h
patching file ./net/if_llc.h
patching file ./net/if_sl.c
patching file ./net/if_slvar.h
patching file ./net/if_types.h
patching file ./net/netisr.h
patching file ./net/radix.h
patching file ./net/raw_cb.h
patching file ./net/route.h
patching file ./net/slcompress.h
patching file ./netinet/icmp_var.h
patching file ./netinet/if_ether.h
patching file ./netinet/in.h
patching file ./netinet/in_pcb.h
patching file ./netinet/in_proto.c
patching file ./netinet/in_systm.h
patching file ./netinet/in_var.h
patching file ./netinet/ip.h
patching file ./netinet/ip_icmp.h
patching file ./netinet/ip_var.h
patching file ./netinet/tcp.h
patching file ./netinet/tcp_debug.h
patching file ./netinet/tcp_fsm.h
patching file ./netinet/tcp_seq.h
patching file ./netinet/tcp_timer.h
patching file ./netinet/tcp_var.h
patching file ./netinet/tcpip.h
patching file ./netinet/udp.h
patching file ./netinet/udp_var.h
patching file ./nfs/nfs.h
patching file ./nfs/nfs_subs.c
patching file ./nfs/nfs_vnops.c
patching file ./nfs/nfscompress.h
patching file ./nfs/nfsdiskless.h
patching file ./nfs/nfsiom.h
patching file ./nfs/nfsm_subs.h
patching file ./nfs/nfsmount.h
patching file ./nfs/nfsnode.h
patching file ./nfs/nfsrvcache.h
patching file ./nfs/nfsv2.h
patching file ./nfs/rpcv2.h
patching file ./nfs/xdr_subs.h
patching file ./stand/printf.c
patching file ./stand/saerrno.h
patching file ./stand/saioctl.h
patching file ./sys/acct.h
patching file ./sys/buf.h
patching file ./sys/callout.h
patching file ./sys/cdefs.h
patching file ./sys/clist.h
patching file ./sys/conf.h
patching file ./sys/dir.h
patching file ./sys/disklabel.h
patching file ./sys/dkbad.h
patching file ./sys/dkstat.h
patching file ./sys/dmap.h
patching file ./sys/domain.h
patching file ./sys/errno.h
patching file ./sys/exec.h
patching file ./sys/fcntl.h
patching file ./sys/fifo.h
patching file ./sys/file.h
patching file ./sys/filedesc.h
patching file ./sys/gprof.h
patching file ./sys/ioctl.h
patching file ./sys/ioctl_compat.h
patching file ./sys/ipc.h
patching file ./sys/kernel.h
patching file ./sys/kinfo.h
patching file ./sys/kinfo_proc.h
patching file ./sys/ktrace.h
patching file ./sys/malloc.h
patching file ./sys/map.h
patching file ./sys/mapmem.h
patching file ./sys/mbuf.h
patching file ./sys/mman.h
patching file ./sys/mount.h
patching file ./sys/msgbuf.h
patching file ./sys/mtio.h
patching file ./sys/namei.h
patching file ./sys/param.h
patching file ./sys/proc.h
patching file ./sys/protosw.h
patching file ./sys/ptrace.h
patching file ./sys/reboot.h
patching file ./sys/resource.h
patching file ./sys/resourcevar.h
patching file ./sys/seg.h
patching file ./sys/shm.h
patching file ./sys/signal.h
patching file ./sys/signalvar.h
patching file ./sys/socket.h
patching file ./sys/socketvar.h
patching file ./sys/specdev.h
patching file ./sys/stat.h
patching file ./sys/syscall.h
patching file ./sys/syslimits.h
patching file ./sys/syslog.h
patching file ./sys/systm.h
patching file ./sys/tablet.h
patching file ./sys/termios.h
patching file ./sys/time.h
patching file ./sys/timeb.h
patching file ./sys/times.h
patching file ./sys/tprintf.h
patching file ./sys/trace.h
patching file ./sys/tty.h
patching file ./sys/ttychars.h
patching file ./sys/ttydefaults.h
patching file ./sys/ttydev.h
patching file ./sys/types.h
patching file ./sys/ucred.h
patching file ./sys/uio.h
patching file ./sys/un.h
patching file ./sys/unistd.h
patching file ./sys/unpcb.h
patching file ./sys/user.h
patching file ./sys/vadvise.h
patching file ./sys/vcmd.h
patching file ./sys/vlimit.h
patching file ./sys/vmmeter.h
patching file ./sys/vnode.h
patching file ./sys/vsio.h
patching file ./sys/vtimes.h
patching file ./sys/wait.h
patching file ./ufs/dinode.h
patching file ./ufs/dir.h
patching file ./ufs/fs.h
patching file ./ufs/inode.h
patching file ./ufs/lockf.h
patching file ./ufs/mfs_vnops.c
patching file ./ufs/mfsiom.h
patching file ./ufs/mfsnode.h
patching file ./ufs/quota.h
patching file ./ufs/ufsmount.h
patching file ./vm/device_pager.h
patching file ./vm/lock.h
patching file ./vm/pmap.h
patching file ./vm/queue.h
patching file ./vm/swap_pager.c
patching file ./vm/swap_pager.h
patching file ./vm/vm.h
patching file ./vm/vm_fault.c
patching file ./vm/vm_glue.c
patching file ./vm/vm_inherit.h
patching file ./vm/vm_kern.c
patching file ./vm/vm_kern.h
patching file ./vm/vm_map.h
patching file ./vm/vm_object.h
patching file ./vm/vm_page.h
patching file ./vm/vm_pageout.h
patching file ./vm/vm_pager.h
patching file ./vm/vm_param.h
patching file ./vm/vm_prot.h
patching file ./vm/vm_statistics.h
patching file ./vm/vm_swap.c
patching file ./vm/vm_user.h
patching file ./vm/vnode_pager.h

Clearly the move from Net/2 to 386BSD 0.0 was not trivial.  Which I’ve always wondered, as quotes like this:

Closing the gap from the Networking Release 2 distribution to a fully functioning system did not take long. Within six months of the release, Bill Jolitz had written replacements for the six missing files. He promptly released a fully compiled and bootable system for the 386-based PC architecture which he called 386/BSD.

Make it sound like Bill spent six months on six files.

I guess the real question is can I find a so called encumbered 4.4 BSD, and compare that to the lite to see the magical “six files” and then check the drift into Net/2, to 386BSD 0.0 …

386BSD 0.1 running on a 386sx

Looking around, I found this blog, which kind of reads under google translate where someone went ahead and booted up 386BSD 0.1 on his 386sx laptop. Sadly he doesn’t have a 80387sx so things like PS explode as it has a %f in the code…

Oh well it’s kind of fun to see things go round and round.

—-update…

I should mention I was thinking of 0.0 that didn’t include the floating point support.. Also “the fuck it crashes” is as good as any other google xlate disaster… 🙂

Multiuser DOS

This has been a fun thing to go through, but at one point it was a popular trend to convert big expensive 386 computers from the late 1980’s into multi-user, multi-tasking beasts much like a mainframe. But instead of CICS, and PROFS people ran Dbase III, WordPerfect, and all kinds of email solutions from ccmail, to MS mail, and even some dbase programs, compiled by clipper into being email clients.

In a way things were more ‘simple’ back then, and the 80386 CPU had a card up it’s sleeve v86 mode. v86 mode provides hardware emulation of a 8086, allowing the base OS to spawn dozens of these virtual machines. All that was up to the ‘supervisor’ was to create virtual peripherals, much like how Windows/386 of the day ran multiple MS-DOS VM’s on a single machine that you could see at once, these solutions provide the output to multiple terminals.

While Windows/386 sat on top of MS-DOS, these multitasking DOS’s had the v86 mode multitasking as part of it’s core, and some of the later ones were themselves protected mode operating systems.

But juggling multiple MS-DOS applications at one could be quite a challenge. And of course there was the whole dos extender thing, leading up to VCPI, and DPMI.

While MP/M-86 is a grand daddy to a bunch of Digital Research derived OS’s, it’s not 386 specific so I’m going to omit it for now. I’m sure it’ll be worth doing it’s own write up.

I’m sure I’m going to miss a bunch of these, but let’s have a quick rundown.

  • Concurrent DOS/386
  • DR-Multiuser-DOS 5.0
  • Real/32
  • TSX-32
  • PC-MOS/386
  • VM/386
  • VMOS/3

If anyone knows of any others feel free to give me a shout. It does seem that multiuser DOS was a good market at one point.

Old Unix tree’s

Well I was looking for a good way to see what changed between Net/2, 386BSD 0.0 and 386BSD 0.1 and it appears that nobody has a cvsweb of these early versions….

What is strange, is that cvsweb package for debian is lacking the actual cgi file.. So after going insane with cvsweb, I set one up.

http://unix.superglobalmegacorp.com/cgi-bin/cvsweb.cgi/#dirlist

I’ve never really setup a CVS repository before so this was my first shot…

rm -rf /var/lib/cvs
mkdir -p /var/lib/cvs
cvs -d /var/lib/cvs init
cd /var/www/unix.superglobalmegacorp.com/source/Net2
cvs -d /var/lib/cvs import -m “Net/2” Net2 CSRG Net2
cd /var/www/unix.superglobalmegacorp.com/source/386BSD-0.0
cvs -d /var/lib/cvs import -m “386BSD 0.0” Net2 BJolitz Jolix00
cd /var/www/unix.superglobalmegacorp.com/source/386BSD-0.1
cvs -d /var/lib/cvs import -m “386BSD 0.1” Net2 BJolitz Jolix01
cd /var/www/unix.superglobalmegacorp.com/source/NetBSD-0.8
cvs -d /var/lib/cvs import -m “NetBSD 0.8” Net2 NetBSD NetBSD08
cd /var/www/unix.superglobalmegacorp.com/source/NetBSD-0.9
cvs -d /var/lib/cvs import -m “NetBSD 0.9” Net2 NetBSD NetBSD09 

From what I saw the more the directories align, the better, so I moved all the i386 and other platform stuff into arch directories to better match NetBSD 0.9 …

I also setup src2html to browse various levels, it’s great for quickly finding things that may have moved… It’s here.

Now I just have to see about doing ‘forks’ in CVS and adding in the 4.4 lite stuff.

NetBSD 0.8 kernel boots!

Well, ok it’s not 100% the NetBSD 0.8 kernel, as a good chunk of the files have been intentionally removed from CVS. However from the announcement, it does make it clear that NetBSD 0.8 is 386 BSD pl22 with some pre pl23 changes thrown in. Since patch level 22 is lost, however patch level 23 is still around, then it wasn’t to hard to install a 386 BSD system, patch it to level 23, then unpack the NetBSD 0.8 sources, and fill in the missing parts.

I guess this is the Jurassic Park of kernels?

386bsd-pl22 booted

Anyways, here is the 386 BSD pl 23 kernel booting up

And now..

NetBSD 0.8 booted

NetBSD 0.8 booted

As you can see there is some differences in the boot strings, but at the same time, because so many files were just pulled in from 386 BSD, and I’m still using a 386 BSD userland, it reports itself as 386BSD.

dmesg’s were so small back then, here is the whole thing from the kernel:

386BSD 0.1 (GENERICISA) #2: Sun Dec  5 13:30:14 PST 2010
 root@branch.oldbsd.org:/usr/src/sys.386bsd/arch/compile/J
real mem  = 67104768
avail mem = 64663552
pc0 at 0x60-0x6f irq 1 on isa
pc0: color
wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: 
wd0 at wdc0 slave 0
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
ne0 at 0x320 irq 10 on isa
 ethernet address 52:54:00:12:34:56
npx0 at 0xf0 irq 13 on isa

Oh well it was moderately interesting.

For the insane, the merged source is here. I’ll provide a snapshot of my build environment, under Qemu here.

On the road to X11

This is going to be.. involved to do… But there is some hope. The source to X11 R5 is still online, even though the xfree86-1.2 stuff is long gone. I was able to find a binary 2 bit Xserver for 386BSD, so that’s promising.

So my hope would now lay in making up a configuration file that’ll satisfy the Xfree86 1.2 server, and build enough of X11R5 to where it’s able to do something….

I have no idea if it’s even that easy to do, but if anyone has any leads on a source copy of xfree86-1.2 or 1.3 that’d probably be easier to build for 386BSD as it was used in the time frame… 2.0 was for the forks of NetBSD & FreeBSD so no doubt it’d hinge on things like DLL’s…

In the meantime, you can check out Neils Horn’s blog, with an example of what Xfree86 1.x was capable of on 0.96 linux.. Back in the day.

HTTPD 1.3

Well I was looking for a way to move data out of the 386BSD vm without too much pain, and I’ve just been hitting this brick wall about trying to compile apache.

You see the thing is, 386BSD is so old, it doesn’t have dynamic libraries, and a uname command so you have to ‘fool’ the configure scripts, and even then if you do manage to get an executable it’ll just crash… For some reason gdb couldn’t help with the whole thing… very annoying. I think it may be a program size limit..? Either way, I’m sure it was ‘fixed’ in NetBSD 0.8 ..

So after googling around the ancient news groups, I came across this post..

NCSA httpd 1.1/1.2/1.3 compile straight (well almost) out of the box. I’ve not tried the CERN one yet. I’m happy with my NCSA 1.3.

Well, now that’s interesting… Remember that NCSA gave us Mosaic, but they also gave us httpd, which apache is based on. However NCSA no longer hosts the httpd source code… It’s gone with the wind…. Except for this Slackware mirror.

So after downloading it, and building, naturally…. it crashed. However this time I was able to fire up GDB, and see that it was crashing in the mime initialization… It seems it was using a null pointer… So for the heck of it, I changed the hash macro to use the 2nd definition, and it worked!!

So after all of that, I built some stuff for 386BSD to test the transfer of the web server, and it “seems” ok to me… Naturally I wouldn’t expect this to withstand any large amounts of traffic as it doesn’t seem to fork itself… I also suspect this version may work with the VAX 4.X BSD stuff as well…

httpd-1.3
com (CP/M emulator)
GNUMake-3.75
Frotz-2.32
screen-3.7.1
gcc-2.5.8
bash-1.14.7
bash-2.0

It is kind of scary how this old software is disappearing, and at the same time, we hear this promise of how we can keep everything forever in the “digital age”… At any rate, I guess this preserves a somewhat usable OS/Webserver configuration circa 1993…