Here are the basic facts:
CompactFlash is spelled "CompactFlash". So many people get this wrong. PowerPC (not "Power PC"), PowerBook (not "Power Book"), MacBook (not "Mac Book"), CompactFlash. CompactFlash is a superset of ATA and PC Card, not a subset. So many people get this wrong.
you can get a CF to PCMCIA adapter … and install the system on it … except for the Powerbook 500 series … wont be able to boot from it
Can't it? I really do not know, I do not mean to argue. If I understand correctly,
Paralel has some success booting from Cage Rev C.
Just recently, one member tried out a "Syba-USA" (aka Syba) adapter for his CF and Performa 630CD and it is not working for him.
"Syba" and "Best Connectivity" are two brand names of
SHENZHEN MMUI Co.,LTD. A better name than Syba is a different, also four letters long, s-word. SYBA STUFF IS NO GOOD. I hope never to give money to them again. Be very careful before using any MMUI product. Either their engineering, quality assurance, or quality control, is lacking. Syba stuff is harmful. To all who consider to use Syba parts: first carefully examine all circuit boards, look for mistakes like reverse-polarity circuit components, solder blob shorts, or missing solder (loose pins/legs). One design defect which is more difficult to notice is inadequate voltage regulation, which can cause intermediate operation (and data loss).
In my opinion, MMUI parts are simply not worth using. I would rather have no part at all, than a MMUI/Syba/Best Connectivity.
That person's hardware hack is impressive. Most of us forum members can only dream of having such skill. Anyway, rather than design a identity-change circuit, one can just find a different card. "Signature for the CompactFlash Storage Card" (848Ah) is optional. Says the spec, "alternate handling of Word 0 is permitted". Some CF drive identify as a conventional fixed-disk PATA drive. Some suppliers might call them "industrial", and might cost insane price increase for one logical difference in otherwise identical hardware.
Another problem was a physical problem with the adapters not fitting on the connector … the ribbon connector on the laptop has a plug in it, … drives, there is a pin missing to correspond to the ribbon connector (Pin #20). But on CF-to-ATA/IDE adapters the pin is there.
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This is the Syba (SybaUSA) CF Adapter. Avoid them!
If the designer/producer do not bother to make standard-compliant parts, then I do not use them. The key pin is part of ATA specification. It is not merely a good idea which caught-on "de-facto but not part of the standard". Indeed, avoid Syba!
On the PC-XP OS side of the Computer Universe, CFs are not always recognized as 'hard drive media' but many times are recognized as "removable media." This is because of a hardware identification bit in its media.
Once again, in case anybody missed it: the 'Word 0 CF Standard Configuration Value' is optional. Some CFs do not pretend to be ATAPI nor removable, identify as plain PATA HDD (firsthand experience, I know).