I recently dug out of the closet my old IBM PS/2E, which had served as my firewall box from 2000ish-06, and was in fact the very first machine I ever installed OpenBSD on, to see if it still worked properly. It did (after changing the CMOS battery), but booted into OpenBSD 4.1... yeah, just a *bit* out of date there. The machine may not be of great use nowadays (I'd retired it when it couldn't keep up with my internet connection), but even as a retro-computing playground, running a 10-year-old/20-releases-ago version of OpenBSD is of no benefit. Let's rectify that!
==== >> OpenBSD/i386 BOOT 3.31 boot> hd0a:/bsd61.rd cannot open hd0a:/etc/random.seed: No such file or directory booting hd0a:/bsd61.rd: 3208120+1332224+3342348+0+446464 [72+288736+277711]=0x87e694 entry point at 0x2000d4 Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. Copyright (c) 1995-2017 OpenBSD. All rights reserved. https://www.OpenBSD.org OpenBSD 6.1 (RAMDISK_CD) #289: Sat Apr 1 13:58:25 MDT 2017 dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/RAMDISK_CD fatal privileged instruction fault (0) in supervisor mode trap type 0 code 0 eip d03b1f7c cs d09f0008 eflags 10046 cr2 0 cpl 0 panic: trap type 0, code=0, pc=d03b1f7c The operating system has halted. Please press any key to reboot. ==== Well, that's not good -- I didn't expect 6.1 to run particularly well on this, but I figured it would at least boot... how about 6.0? ==== booting hd0a:/bsd60.rd: 3211188+1318224+2061312+0+442368 [72+298576+282894]=0x744144 entry point at 0x2000d4 Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. Copyright (c) 1995-2016 OpenBSD. All rights reserved. http://www.OpenBSD.org OpenBSD 6.0 (RAMDISK_CD) #1864: Tue Jul 26 12:57:09 MDT 2016 dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/RAMDISK_CD cpu0: Intel 486DX (486-class) real mem = 16183296 (15MB) avail mem = 8122368 (7MB) mainbus0 at root bios0 at mainbus0: date 03/31/93 pcibios at bios0 function 0x1a not configured bios0: ROM list: 0xc8000/0x1000 0xc9000/0x1000 0xca000/0x2000 cpu0 at mainbus0: (uniprocessor) isa0 at mainbus0 isadma0 at isa0 fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec com0 at isa0 port 0x3f8/8 irq 4: ns16450, no fifo com0: console pckbc0 at isa0 port 0x60/5 irq 1 irq 12 pckbd0 at pckbc0 (kbd slot) wskbd0 at pckbd0: console keyboard vga0 at isa0 port 0x3b0/48 iomem 0xa0000/131072 wsdisplay0 at vga0 mux 1: console (80x25, vt100 emulation), using wskbd0 wdc0 at isa0 port 0x1f0/8 irq 14 wd0 at wdc0 channel 0 drive 0: <IBM-DARA-206000> wd0: 16-sector PIO, LBA, 5729MB, 11733120 sectors wd0(wdc0:0:0): using BIOS timings npx0 at isa0 port 0xf0/16 irq 13 pcic0 at isa0 port 0x3e0/2 iomem 0xd0000/16384 pcic0 controller 0: <Intel 82365SL rev 1> has sockets A and B pcic0 controller 1: <Intel 82365SL rev 1> has sockets A and B pcmcia0 at pcic0 controller 0 socket 0 pcmcia1 at pcic0 controller 0 socket 1 pcmcia2 at pcic0 controller 1 socket 0 ep1 at pcmcia2 function 0 "3Com, 3C574-TX Fast EtherLink PC Card, A" port 0x340/32, irq 3: address 00:10:4b:5f:20:c0 tqphy0 at ep1 phy 0: 78Q2120 10/100 PHY, rev. 3 pcmcia3 at pcic0 controller 1 socket 1 ep2 at pcmcia3 function 0 "3Com, 3C574-TX Fast EtherLink PC Card, A" port 0x300/32, irq 9: address 00:60:08:93:80:48 tqphy1 at ep2 phy 0: 78Q2120 10/100 PHY, rev. 3 pcic0: irq 5, polling enabled softraid0 at root scsibus0 at softraid0: 256 targets root on rd0a swap on rd0b dump on rd0b erase ^?, werase ^W, kill ^U, intr ^C, status ^T Welcome to the OpenBSD/i386 6.0 installation program. (I)nstall, (U)pgrade, (A)utoinstall or (S)hell? ==== Seems fairly normal. Did I miss something about 6.1 dropping 486 support? [/me checks i386.html... still says 486 or better!] Turns out that GENERIC can give us a little more useful information than RAMDISK_CD, as it drops into ddb: ==== boot> hd0a:/bsd.61 cannot open hd0a:/etc/random.seed: No such file or directory booting hd0a:/bsd.61: 7678420+2057220+174556+0+1097728 [72+501520+501951]=0xb761b4 entry point at 0x2000d4 [ using 1003956 bytes of bsd ELF symbol table ] Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. Copyright (c) 1995-2017 OpenBSD. All rights reserved. https://www.OpenBSD.org OpenBSD 6.1 (GENERIC) #291: Sat Apr 1 13:49:08 MDT 2017 dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC kernel: privileged instruction fault trap, code=0 Stopped at cpuid+0x12: cpuid ddb> trace cpuid(80000000,d0d78ef0,d0d78ed8,0,7d) at cpuid+0x12 identifycpu(d0c7d8a0,d09fbb83,10,0,ffffffff) at identifycpu+0x80d cpu_startup(d09cefed,d09d1680,16c,8,0) at cpu_startup+0xb9 main(d02004c6,d02004ce,0,0,0) at main+0x6a ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND ddb> ==== Looks like it's trying to run the CPUID instruction, which this processor probably doesn't support. Maybe this was an accidental breakage, rather than intentionally dropping 486es? Time to examine the CVS logs, I guess. (A -current snapshot also fails in the same manner, so something happened between 6.0 & 6.1.)