OK, after setting up the NOS Apple /// I bought from Jim Thomas, I have some questions, because although I had one of these Back in the Day, I've forgotten a lot (although it is apparent just have much the Apple //e and its successors benefitted from the 10 or so years of continued software development after the /// was cancelled). So:
1. Was there ever a way to get the /// to boot from anything _except_ its internal drive? As best I can find, the answer is "No"; the SOS Kernel, drivers, and interpreter have to be loaded from that. Which sucks.
2. Did anyone ever come up with a post-boot way for Apple /// Pascal to run entirely from a Profile or other device? I have Apple's instructions for moving all the required files to the Profile (or, in my case, a CFFA3000), and that works fine, but since the system still treats the internal floppy as the boot drive, that's where your work file goes, which slows things down immensely.
I know #2 is at least theoretically possible since Applied Engineering released a patch to make their 1MB RAM disk card for the Apple //e the Pascal boot volume. Sadly they did not release the source code.
I've taken lots and lots of photos, including a pseudo-unboxing photo and clock chip installation series. I'll be posting these soon.