From my experience, you need to have a recent release of SIMH in order to run 4.3BSD. A few months ago, I managed to build "working" Quasijarus and Reno disk images (Quasijarus appears to work fine for me, but Reno is as buggy as I remember it being on real hardware). I had to use Ultrix and Netbsd to do the bootstrap/install; I could not get the tape boot to work at all. Here's my SIMH ini file for Quasijarus: --------------------------------------------------------------------------------------------------------------- set cpu 32m set cpu conhalt set tto 7b set tti 7b at rom ka655.bin at nvr nvr.bin set rq0 ra82 at rq0 bsd43q_ra0.dsk set rq1 ra82 at rq1 /dev/null set rq2 ra82 at rq2 /dev/null set rq3 ra82 at rq3 /dev/null set tq0 locked at tq0 BSD43Q_TAPE.tap set dz 7b at -m dz0 4501 at xq eth0 set lpt dis set ts dis set rl dis boot cpu -------------------------------------------------------------------------------------------------------------- Here's an example boot log for Quasijarus under SIMH: (BOOT/R5:0 DUA0 2.. -DUA0 1..0.. loading boot Boot : /vmunix 327204+103384+130352 start 0x23a8 4.3 BSD Quasijarus UNIX #0: Sat Oct 2 22:15:38 CDT 1999 msokolov@luthien:/usr/src/sys/GENERIC real mem = 33521664 SYSPTSIZE limits number of buffers to 80 avail mem = 31697920 using 80 buffers containing 655360 bytes of memory MicroVAX 3000, ucode rev 6 tmscp0 at uba0 csr 174500 vec 774, ipl 15 tms0 at tmscp0 slave 0 tms1 at tmscp0 slave 1 uda0 at uba0 csr 172150 vec 770, ipl 15 uda0: version 3 model 3 uda0: DMA burst size set to 4 ra0 at uda0 slave 0: RA82, size = 1216665 sectors ra1 at uda0 slave 1: no disk label: ra82, size = 1216665 sectors ra2 at uda0 slave 2: no disk label: ra82, size = 1216665 sectors ra3 at uda0 slave 3: no disk label: ra82, size = 1216665 sectors dz0 at uba0 csr 160100 vec 300, ipl 15 dz1 at uba0 csr 160110 vec 310, ipl 15 dz2 at uba0 csr 160120 vec 320, ipl 15 dz3 at uba0 csr 160130 vec 330, ipl 15 qe0 at uba0 csr 174440 vec 764, ipl 15 qe0: delqa, hardware address 08:00:2b:aa:bb:cc Changing root device to ra0a WARNING: clock gained 91 days -- CHECK AND RESET THE DATE! Automatic reboot in progress... Mon Sep 29 08:38:03 CDT 2003 /dev/ra0a: 669 files, 5242 used, 25429 free (37 frags, 3174 blocks, 0.1% fragmentation) /dev/rra0g: 12267 files, 71408 used, 376714 free (1634 frags, 46885 blocks, 0.4% fragmentation) Mon Sep 29 08:43:51 CDT 2003 checking quotas: done. starting system logger preserving editor files clearing /tmp standard daemons: update cron accounting. starting network daemons: routed named inetd printer. Sep 29 08:44:28 simh named[66]: /etc/named.boot: No such file or directory starting local daemons: sendmail. Mon Sep 29 08:44:52 CDT 2003 4.3 BSD UNIX (simh.localdomain) (console) login: ----------------------------------------------------------------------------------------------------------- Cheers, ---- Joseph Young jy99(a)swbell.net