[jacquesm]

Tanenbaum made that deal. He collected royalties from the book (as was his right) but it clearly was a way to make money for him. Just another part of the textbook grift because students were forced to work on Minix long after that that made any sense at all.

Ironically, that single threaded nature of the FS made it a perfect match for my own little OS and I happily hacked it to pieces to bootstrap it using message passing into a FS executable. That trick probably saved me a year in bringing up the kernel to the point that the OS could compile itself, which greatly sped up development.

[justin66]

> students were forced to work on Minix long after that that made any sense at all

Not to defend the textbook grift or the lack of vision here, but I strongly suspect an undergraduate minix course taught at VU would be very good. It’s not obvious to me that it would be inferior to the xv6-based course taught at MIT, for example.

[jacquesm]

That's fair, but it would be no less effective than a similar course based on Linux which would actually give the graduate a far more practical amount of knowledge. Acquisition of knowledge isn't free and to purposefully use a toy when the real thing is freely available for commercial reasons is just grift and AT and VU were well aware of this.

Note that all I'm doing here is taking AT at his word that he developed Minix solely because the source to Unix wasn't free to universities to hack on. They could have adopted Linux from the day that it became available then, or at least the beginning of the next academic year.

[justin66]

I believe in the present day, the premise motivating these undergrad books and courses based on alternatives (VU and Minix, MIT and xv6, Purdue and Xinu, God knows what else) is that Linux has become too complicated for an introductory course. I honestly don’t have any instinct as to whether this is correct pedagogically. I suspect the two main factors are how well the software facilitates getting students situated and in a position to do meaningful programming assignments quickly, and how motivated the students are to work on the software.

I reminder taking a security-oriented class ages ago and hacking on an operating system that was already dead as a trilobite, and we were all smart enough to realize this was not a triumph we’d be bragging about to our future children (or recruiters). Bleh.

[jacquesm]

> Linux has become too complicated for an introductory course.

So that already suggests a fantastic way to make some progress.

I think Tanenbaum had a unique vision at the time, but he went about it in the most ham handed manner possible and if not for VU Minix wouldn't even be remembered today. Linus had a huge advantage: he didn't have a lifestyle to support just yet.