USL vs BSDi wasn't filed until after the first release of Linux. The lawsuit may have delayed the development of BSD for home machines, but it's not the reason that Linus wrote his own kernel.
Posted Nov 20, 2011 20:23 UTC (Sun) by vonbrand (subscriber, #4458)
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Linus himself said in 1993 that if 386BSD had come out before (0.0 came out in 1992) Linux would never have happened. I did compare roughly contemporary MCC and 386BSD versions from the 1992-1993 timeframe, and 386BSD sure was a much more polished system. I was using 4.1 BSD during my PhD studies in 19984 to 1987, it wasn't exactly a long shot imagining porting most of that to a PC in the starting 1990s. But the lawsuits and concurrent assorted wild claims of infringement did make people somewhat nervous about ending up stranded with BSD, and so looked around for alternatives.
Counterpoint
Posted Nov 20, 2011 20:26 UTC (Sun) by man_ls (subscriber, #15091)
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Yes. Notice that Linus in his seminal message spoke about the Hurd as the competition, not about BSD. And even that "big and professional" kernel did not stop him from starting his pet project. So your point is not too credible, that is my point.