We are attempting to use CFEngine 3.5 Enterprise on SL6x x86-64 for both 
the server (policyserver/hub) and client (host) systems.  We have now 
gotten CFEngine to work except for one detail as explained from:

https://cfengine.com/archive/manuals/enterprise-2-2-ownersmanual

2.2 Operating system support

CFEngine can be made to run on most operating systems. For efficiency 
CFEngine only supports packages for a number of recent popular operating 
systems, which should be up to date with patches. If we don't have 
packages for your particular operating systems we can usually make 
packages by special arrangement please contact your sales representative.

CFEngine 3 Free Enterprise is only available for Linux Operating Systems 
(both hub and client). Commercial CFEngine 3 Enterprise customers have 
access to all the following Operating Systems.

The hub (policy server) is only available for derivatives of the top 
GNU/Linux distributions (Debian, Red Hat, SuSE, Ubuntu), as these make 
available software that the hub relies on for data storage and 
processing. Operating system choices for the hub are:

       Debian 6
       Ubuntu 8.04, 10.04, 12.04
       RHEL/CentOS 5, 6

Operating system choices for the clients are:

      AIX 5.3, 6.1, CentOS 5, 6, Debian 5, 6, Fedora 14, 15, 16, FreeBSD 
7, 8,
      HP-UX, NetBSD 4.0, 5.0, 5.1, openSUSE 10.2, 10.3, 11.1, 11.2, 11.3,
      11.4, RHEL 4, 5, 6, SLES 9, 10, 11, SUSE Linux 9.1, 9.2, 9.3, 
10.0, 10.1,
      Solaris 8, 9, 10, Ubuntu 8.04, 8.10, 9.04, 9.10, 10.04, 10.10,
      11.04, 11.10, 12.04, Windows XP, Vista, 7, Server 2003, Server 2008

End quote.

The diagnostic we are getting from CFEngine is:

/cfe_internal_update_bins/files/'$(local_software_dir)': Can't stat 
'/var/cfengine/master_software_updates/scientific_6_x86_64' in 
files.copyfrom promise

As can be read from the (fairly well hidden) documentation supplied by 
CFEngine, SL is not supported per se.  Nonetheless, except for some 
repointing of repository Internet locations and other similar minor 
items, as both CentOS 6 and RHEL 6 are supported, one should be able to 
modify the files to support SL6x.

Has anyone done this?  If so, the files needed for SL6x from which to 
work greatly would be appreciated.  Otherwise, CFEngine has no business 
unpacking and installing if the environment is not supported.