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Neither Beige or B&W have -5V. Here's the pinout for both:

Yep, my mistake. MODE32 must be installed on 7.5.3/7.5.5. When Apple licensed it from Connectix in 1994, they announced that a future release of MacOS would have it built-in. Never happened.

You need to change the clock divider ratio. Refer to https://lowendmac.com/1997/overclocking-beige-power-mac-g3/ You may be able to over-clock it beyond 400MHz.

A footnote to this: System 7.5.3 and 7.5.5 have MODE32 builtin. No need to install anything .. just enable 32-bit addressing in the Memory control panel and your dirty old SE/30 will happily see more than 8MB. I use 7.5.5 on my SE/30 with 16MB (4*4MB in bank A).

Yep, you grok the issue. My patch is just a cheap fix to get around the issue for my configuration. Lazy initialization would seem to be the solution so long as duplicate connections are permitted.

I did some debugging and the flashrom failure is due to a conflict between the pciutils and DirectHW libraries. The IOUserClient port is being obtained by the PCI library and the PCI bus is successfully probed. But the subsequently attempted memory mapping via the DirectHW library fails because...

I pulled your repos and rebuilt. See attached flashrom.txt and lspci.txt for the latest ouput. Better, but no cigar.

ADS Technologies USBX-500 is what's in my G3 Minitower. Reliable 2-port card.

I cloned your trees to my G3 Minitower running 10.4.11 with TigerBrew installed and built and installed everything. DirectHW and pciutils seem to work OK producing this output - see lspci.txt. But flashrom has trouble - see flashrom.txt. Running under gdb, I see this backtrace - see gdb.txt...

Although UTM is convenient for running potted configs from the gallery, I find that for creating other configurations it adds another level of complexity. In particular for QEMU, it makes configuration switches more difficult to set. I've been experimenting with QEMU instances (guests) on a...

Attached are zipped binary source diffs for Linux built on Debian 8.

I can build and post a macppc Linux binary if dosdude1 posts the AM28F010 source diff.

And here's my verbose lspci for the device:

I meant flashrom -VVV -p satasii. My spew is attached.

Have you tried running flashrom with the verbose switch (-V, -VV or -VVV) to get more information? It's pretty specific.

Oh .. my mistake .. I hit the wrong device. It should read: 01:02.0 Mass storage controller: Silicon Image, Inc. SiI 3112 [SATALink/SATARaid] Serial ATA Controller (rev 01) Subsystem: Silicon Image, Inc. SiI 3112 SATALink Controller Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV-...

indeed. Alas, I have no recollection of what device/class I saw when I originally flashed the card. It had BIOS firmware installed originally, but I guess it was advertising compatible IDs for flashrom to grok.

For reference, here's what my B&W G3 reports for a flashrom-programmable PCI SATA card under Tiger: And running Debian, I see: root@blue:~# lspci 00:00.0 Host bridge: Motorola MPC106 [Grackle] (rev 40) 00:0d.0 PCI bridge: Digital Equipment Corporation DECchip 21154 (rev 02) 00:10.0 VGA...

I second eric's SATA PCI suggestion. I have a couple of G3s running with these. The Gossamer's restriction of only being able to boot off the first 8GB of any IDE drive is a real pain. Having SATA drives on a PCI RAID controller is way faster and not subject to this IDE boot restriction. And...

Yeah, this generation of machine can be picky with CD-R media. I've had better luck with DVD drives. However, one trick that may work with your reluctant CD drive is to burn your CD image onto a DVD-R disc. This has worked for me on a number of occasions.