> In the case of your kernel, the 2.6.8 refers to the baseline kernel from > kernel.org while the 1.521 is appended by the Fedora packager to refer > to the "patches/enhancements" applied. Actually 2.6.8.1 is from kernel.org, .521 is from Fedora. I'm in the process of building 2.6.8.1 right now (to incorporate Win4Lin patches). It works if I call it 2.6.8.1, but when I try to call it 2.6.8.1-Win4Lin, I get a kernel panic when it tries to boot. Strange... I guess I'll just leave it as 2.6.8.1 then! It's my first time building a kernel, BTW.