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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The VAX 3900, MicroVAX2, and MicroVAX1 simulators all can boot VMS over the network (and join a VMScluster). I think that the MicroVAX 1 has some VMS version constraints, but the boot activity works. The boot host in these cases have been real hardware or smh VAX systems.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> simh-bounces@trailing-edge.com [mailto:simh-bounces@trailing-edge.com] <b>On Behalf Of </b>Joel Heikkila<br><b>Sent:</b> Friday, July 05, 2013 12:47 PM<br><b>To:</b> simh@trailing-edge.com<br><b>Subject:</b> [Simh] Netbooting the SIMH VAX emulator<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hi all,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Just on a whim, I decided to try to netboot NetBSD on the VAX emulator. The mopd/dhcpd/NFS server is FreeBSD amd64 and the machine SIMH was running on is FreeBSD sparc64, they were both on the same hub. I'm using the latest SIMH code from Github. I tried it with both the "vax" µVAX 3900 emulator and the "microvax2" emulator.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>First, the MOP bootloader from every NetBSD since I think 1.5.3 is broken such as <a href="http://ftp.netbsd.org/pub/NetBSD/NetBSD-6.0.2/vax/installation/netboot/boot">http://ftp.netbsd.org/pub/NetBSD/NetBSD-6.0.2/vax/installation/netboot/boot</a> (unless I'm misconfiguring it or downloading the wrong file), so you have to dig into the archives to find a working bootloader such as from 1.5.3 <a href="http://ftp.netbsd.org/pub/NetBSD-archive/NetBSD-1.5.2/vax/installation/netboot/boot.mop">http://ftp.netbsd.org/pub/NetBSD-archive/NetBSD-1.5.2/vax/installation/netboot/boot.mop</a> <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I got mopd to serve up the bootloader, the bootloader to boot and to get bootp configuration info from the dhcpd server. Checking with Wireshark, the emulated VAX then makes a NFS mount request and then goes silent on Ethernet, printing endlessly on the console "stray interrupt: vector 0x18, ipl 31". Googling this wasn't much help and I don't have a real VAX to test with. I got the same error trying with OpenBSD's loader under the same setup too.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Has anyone successfully netbooted any VAX OS under the SIMH emulators? It's not much of pressing issue since I'm just having some fun, but it has made me curious. Maybe this counts as a bug report of sorts.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thanks,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Joel<o:p></o:p></p></div></div></div></div></body></html>