What does the .nptl extension on the kernel name stand for? 2.4.22-1.2153.nptl While we're at it, what does the whole "-1.2153.nptl" mean? I know the 2.4.22 is major.minor.patch. I also found an interesting tidbit that I didn't know - I read that all stable versions have an even "minor" number and all development versions have an odd "minor" number. Found it here - ( http://www.leicester.lug.org.uk/meeting/m000713/Kernel_versions/kernel_versions.html ) -Jason