Try with: rpm -ivh filename.rpm and the take a look in /usr/src for kernel source Angel Tsankov wrote: >>> >How can I setup an SL 4.2 to write 1 to >>> /proc/sys/net/ipv4/ip_forward >instead of 0 at boot time? >>> >>> It turns out that I need to apply patch-o-matic to the kernel source >>> and recompile. >>> Where can I find SL sources? >> >> >> get the Redhat src rpm, e.g. from our mirror: >> >> http://mirror.in2p3.fr/linux/redhat/updates/ >> http://mirror.in2p3.fr/linux/redhat/updates/enterprise/4ES/en/os/SRPMS/kernel-2.6.9-22.0.2.EL.src.rpm >> >> http://mirror.in2p3.fr/linux/redhat/updates/enterprise/3ES/en/os/SRPMS/kernel-2.4.21-40.EL.src.rpm >> > > > OK, I downloaded the sources, but how do I unpack/install them? >