Gregory's Servertrying something else. unfortunately this didn't seem to work, I suspect the HFS partition needs to come before the ProDOS partitions.
|
54 comments
@tubetime Seeing this is dredging up ancient memories of playing with not-new SCSI gear as a kid… staring at the baroque arrangement of peripherals, utterly confused as to why it wouldn’t just WORK.  @tubetime Memories of SE30s, Classics and a few Quadras in a graphics shop I worked at in 92. I used Filemaker Pro to manage work flow and create job tickets. Great relational database program. @natemartinsf it's super clean! also dang you're on mastodon too, i will follow you asap @tubetime copyright 1982 on the ROM--wow! @tubetime thanks! I think Apple added the expansion port on the Mac SE; I recall working on a prototype add-on for that port in 1989. I think the port used a conventional DIN 41612 connector; this one looks like a newer, extended version.  @tubetime Definitely a #Macintosh #mainboard: I've not seen and #PDS "slot" sockets anywhere else... @tubetime This post suggests power management. https://68kmla.org/bb/index.php?threads/where-to-find-341s0851-c-1990-apple-lciii-boot-issues.37152/ @tubetime that's 343S0120, often found alongside the customized 68HC05 Apple calls Egret (Cuda in later models) used for ADB, housekeeping tasks, PRAM, reset (and NMI) management, etc. IIRC '0120 serves as a power monitor, switching the HC05 to battery power when system power is cut. ...as seen here on a 630 DOS/LC580 board. i removed the 'ls125. there was definitely a puddle of electrolyte underneath (it crackled and fizzed during desoldering). note that the potentiometer connection (red arrow) is right next to a pin tied to ground (blue arrow). electrolyte is conductive, so maybe it was creating a leakage current. @tubetime Did you figure out what the ‘LS125 is doing there? I looked it up and guess it’s just a buffer. https://www.ti.com/lit/ds/symlink/sn54ls125a.pdf  @tubetime Ahhh, so IBM _wasn't_ the only company that used an RC circuit as an integrating ADC :'D!   @tubetime I feel like that's the spiritual successor of the SE's BBU which turned a half dozen or so PALs into a single chip @tubetime I wonder why a similar situation didn't cause problems in PC land when going from 8088 to 286 bus (and again from 286 to 386)? 8-bit ISA works (mostly) fine on newer machines. I wonder if this is a port-mapped I/O accommodation? I remember hearing- emphasis on _only hearing_- the 286 has some _slight_ incompatibilities when talking to 8-bit devices with an I/O port at an odd address. But most cards in practice didn't run into this. @cr1901 hmm, i don't know. intel was all about backwards compatibility, so probably the CPU handled it automatically. @tubetime The Apple IIgs was the first to have this tool-less design. I don’t know why that is so. It made working on Apple products so nice. @tubetime Oooh that looks fun. Alas all I have in the classic mac world is a Mac SE with no slots. @tubetime @tubetime Yeah I've had mixed results with the SCSI2SD and random old hardware. A particularly weird one is suddenly the same one I've had forever stopped working on my Microvax. Used to work, now doesn't, no explanation. |
well this explains why it was hanging. there's probably some setting on the SCSI2SD that's not exactly right.