Dear all,
I am using this kernel 
ftp://ftp.scientificlinux.org/linux/scientific/304/i386/contrib/RPMS/nfs/kernel-smp-2.4.21-27.0.2.ELSDR.i686.rpm
that solve many of the nfs troubles we (CNAF-INFN) have found in our farm.
I want to compile a kernel module for gpfs then I need the kernel header 
files and I expected to find a kernel-source....EDR..rpm  somewhere but 
there is nothing like that.
Please, could anyone suggest me a way to get the  header files for the 
kernel 2.4.21-27.0.2.ELSDR?
Thanks in advance,

Giuseppe