[HECnet] Re: RPM (was: APL help needed)

There is another use case for MOP downline load: VAXeln. The ePascal build system on VMS produces VAXeln system images (*.SYS files) that are available for download (either remote network boot from the VAXeln systems, or via NCP TRIGGER on a VMS host). I have such a setup available for testing. HECnet node PIRTVX is served from node PIVAX0 in this way. /Wilm -----Original Message----- From: Johnny Billquist <bqt(a)softjar.se> Sent: Sunday, October 16, 2022 6:20 PM To: hecnet(a)lists.dfupdate.se Subject: [HECnet] Re: RPM (was: APL help needed) On 2022-10-16 16:42, Paul Koning wrote: wrote: It also provides MOP services for our DECserver terminal servers, etc. Because the transatlantic links can sometimes be a bit slow, and there are several RSX-11M-PLUS systems between LSSM and my place, I maintain a local copy of the RPM repository on that system, that I copy periodically from MIM:: and all local instances of rpm are configured to point at that. some network traces of how VMS loads a terminal server would be helpful, along with a copy of the image it uses. do contain a lot about MOP, and you also have the free mopd which you can find in the NetBSD distribution among other places. remember it...) What I was looking for is a trace of what VMS does, since reality doesn't always match the spec. That, and an understanding of what loadable files look like, that's an implementation specific detail not give in the DECNet specs. Hmm. I see that I conflated MOP with microcode updates a bit when trying to remember this. Anyway, the mopd in NetBSD can boot both DECservers as well as actual VAXen (I've done it *lots* of times). The DELUA manual gives a good start, and the mopd code should give enough to get it all running in PyDECnet, I would expect. The actual file format of the system images for the DECservers that I have is actually the same as the RSX task image format. But it is images without a task header (if you dive into it, you'll understand). .tin du:[5,54]pr0801ENG.SYS TIN V1.8 Task name: DS2$WR Date: 10-DEC-90 Pri=0. Start=013000. EXTTSK=000000. Label block revision: 0. Task addresses - Low: 013000, W0 high: 177777, High: 177777 Load size: 00570200 Max size: 00570200 # of window blocks: 1. Task flags (040100): -HD -CHK Partition: SYSTEM Offset: 000000 System ID: RSX-11M. . Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt(a)softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol _______________________________________________ HECnet mailing list -- hecnet(a)lists.dfupdate.se To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se