I have a x86 architecture In my case, vmware-config.pl could not update modules with kernel-devel-2.6.18-1.2200.fc5. It told that he did not find headers. Looking deeper, I noticed that the file /usr/src/kernels/2.6.18-1.2200.fc5-i686/include/linux/version.h did not define UTS_RELEASE Adding the version name I went further but abort later with a compilation error. Something wrong with kernel-devel-2.6.18-1.2200.fc5 ?