Well, while coming from debian world and
thinking it is trivial, doing the same thing in RH seems to be somewhat more work. In fact, there is even a
readymade program in debian that generates chroot environments for different purposes for building against different debian systems.
Results of some googling:
-
http://gnumonks.org/ftp/pub/doc/chroot-howto.html -- for a very old version of RH, doing almost the right thing (well, for wrong reasons and doesn't point out that the chroot environment could be of a differerent version).
-
http://leapster.org/linux/redhat/rhel/ -- Builds a chroot environment for other RH installation. Unfortunately not for RH7.3, but for RHEL and it builds it from source, which is not necessary in this case and the document seems to be uncompleted.