On Oct 4, 2018, at 7:13 PM, userm57%yahoo.com@localhost wrote: > > I'd be happy to help with testing. There's a SCSI2SD card (uses > a micro SD card up to 64 GB) that works pretty well on 68k Macs, > though I've had some problems with it on faster systems (such as > PowerMac 61xx). The SCSI2SD also didn't work using the traditional > method to install NetBSD (Mkfs in Mac OS just didn't see it for > some reason); I didn't test it with sysinst. But it works ok an > a IIfx running Mac OS and Debian 3.1. I'm familiar with SCSI2SD! Being in the vintage computing community, it's a lifesaver for a lot of us, not just Mac users; it also supports weird block lengths and other things. However, being *also* an embedded developer, I see a lot of things I'd like to improve on it (most notably, it doesn't do sync SCSI) and I'd also like to be able to map iSCSI LUNs because I'm a lot more confident in the long-term longevity of my SAN array than I am of a consumer SD card. I have a theoretical design for an ESP32-based one with a tiny CPLD for handling the SCSI physical interface, but haven't had the time to prototype anything. > Linux 2.x seems to get around 200 KB/s on the Mac LC III; Linux 4.x > gets around 100 KB/s. NetBSD 8.0 installed from CD at about 25 KB/s, > though that included decompressing the tar files. Yeah, I've found recent NetBSD to be intolerably slow even on my PowerMacs, mostly on anything that touches the filesystem much; I suspect there are some paths under the hood that have gotten a lot longer in recent years. Profiling that has also been on my queue for quite a while. > I have an Asante EN/SC and could help with testing of that, too, > though I'm not aware of any drivers for it (Linux or NetBSD). And > the lack of documentation would likely be a problem. Mostly I'm interested in seeing what's inside. If you've the inclination to take it apart and photograph the innards, that would be a help; the rest of it, I was going to reverse engineer from the Mac driver, because I have a copy of MacNosyII and know what to do with it. :-) If the innards contain some reasonably standard processor, I'd love to be able to dump the firmware for reverse engineering as well (I also have a copy of IDA Pro). Herb Johnson (of http://www.retrotechnology.com/herbs_stuff/mac.html) is a member of my vintage computer group, I might see if he also has an EN/SC that he'd be able to sell me at our holiday gathering. - Dave
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