Was this necessary? What exactly are we arguing about again?
The fact that BSD was incomplete is relevant because it illustrates the fact that the only people who could run BSD were shops that had a source-code license for the proprietary AT&T Unix.
>> When exactly did GNU ship a complete OS?
> the only people who could run BSD were shops that had a source-code license for the proprietary AT&T Unix.
So -- finally! -- that's the measure of OSS? I must run on non-proprietary systems? And you figure that Linux is the first non-proprietary system in 1991? Not 4.3BSD released in 1989?
And not simply the source code? So -- OSS that runs on Windows or MacOS or VMS is not actually OSS? I wouldn't say so.
I think you can understand my and others reluctance to state definitively Stallman was first, when by a dozen different metrics he wasn't. I'm still trying to understand what he was supposedly first at? First to find a lawyer?
Linux is important. GNU is important. BSD is important. And they remain important. I don't think any of them are made more important by distinguishing only one and not the others. Like -- as much as it pains me to say it, because of how I loath Stallman and the FSF, GCC was more than important to the entire ecosystem for years, until LLVM, it was required.
I want to say around 2006 or 2007 was the first time a 'normal' *nix hacker could install and boot[0] a complete GNU OS[1] and get something resembling work done (ie edit and compile C code in vi or emacs).
[0] without having to to a bunch of bootstrapping steps and other hackery
[1] Technically 'shipped' by Debian rather than GNU/FSF
Is that the measure: a complete OS? When exactly did GNU ship a complete OS?
IMHO none of the above is relevant to the question which was first. IMHO both were not first. IBM, among others, were shipping source code with their product, until they didn't. OSS is and was a reaction to an only object model. And there were seeds at Berkeley and MIT.
And Stallman isn't strictly responsible for the MIT strain. As Keith Packard said in his "A Political History of X", the X11 project chose not use the GPL license, because Stallman was simply too annoying.