Indeed, I made a mistake: the new headers are installed at the end of the installation process with (see http://fedoraproject.org/wiki/Docs/CustomKernel): su -c 'rpm -ivh kernel-<version>.<arch>.rpm kernel-firmware-<version>.<arch>.rpm kernel-headers-<version>.<arch>.rpm kernel-devel-<version>.<arch>.rpm' But still the problem is the same: I need to 1)first patch the kernel 2)then compile some apps in userland and I do not know what kernel headers version (old or new) to use for step 1 and step 2. Ryad PS: here is what I got when I do rpm -qa | grep kernel-headers kernel-headers-2.6.33.3-85.fc13.i686 kernel-headers-2.6.35.6-43.fc13.i686 On Fri, Oct 15, 2010 at 4:51 PM, Ryad Ben-El-Kezadri <ryad.bek@xxxxxxxxx>wrote: > The problem is that I need to > 1)first patch the kernel > 2)then compile some apps in userland with my new patched kernel > > My problem is that > I do not know what kernel version (old or new) to use for step 1 and step > 2. > > > On Fri, Oct 15, 2010 at 4:27 PM, Kyle McMartin <kyle@xxxxxxxxxxx> wrote: > >> On Fri, Oct 15, 2010 at 04:16:35PM +0200, Ryad Ben-El-Kezadri wrote: >> > I will have to compile applications in userland that needs the new >> headers. >> > Can I safely remove the old headers? >> > >> >> Unless you need something from the new ones, you should probably keep >> the /old/ headers instead, since those are the ones the C library is >> built against (roughly.) I'm not entirely sure why that wiki page >> recommends installing new headers, but it probably shouldn't. >> >> --Kyle >> > > _______________________________________________ kernel mailing list kernel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/kernel