On Fri, 2008-04-18 at 17:05 +0000, Tony Mountifield wrote: > Hi, I want to take a SRPM that is available for various versions of Fedora > and rebuild it on a CentOS 4 system. > > Which release of Fedora is the closest to CentOS 4? In other words, which > would be the best FC to take the SRPM for? Per http://en.wikipedia.org/wiki/Red_Hat_Enterprise_Linux Originally, Red Hat based Red Hat Enterprise Linux on Red Hat Linux, but using a much more conservative release cycle. Later versions leveraged technologies from Fedora which is a community distribution and project that Red Hat sponsors. Roughly every third version of Red Hat Linux (RHL) or Fedora forms the basis for a version of Red Hat Enterprise Linux, thus: * Red Hat Linux 6.2 → Red Hat Linux 6.2E * Red Hat Linux 7.2 → Red Hat Enterprise Linux 2.1 * Red Hat Linux 9 → Red Hat Enterprise Linux 3 * Fedora Core 3 → Red Hat Enterprise Linux 4 * Fedora Core 6 → Red Hat Enterprise Linux 5 * Fedora 9 → Red Hat Enterprise Linux 6 (projected) IIRC the RHEL (and thus CentOS) branches from Fedora have been from late test versions rather than the final releases. I have had pretty good luck building packages from a Fedora release or 2 later than the branch version on CentOS. My $0.02 is to try the latest SRPM for a particular package that will build successfully, rather than going all the way back to FC3 for EL4-based systems. You will often need to build dependencies from Fedora as well. Probably goes without saying, but check the 3rd party repos first before embarking on custom builds. http://wiki.centos.org/Repositories Phil