Last updated: 10 May 2009
Where to get a free copy of enterprise-grade Linux
 
Sybase ASE has free editions available for Linux, as well as for other platforms.

Although Linux is an open-source product, it isn't always as free as you might have hoped: enterprise versions of RedHat and SUSE cost at least a few hunderd US$, for example (this usually includes a certain amount of technical support).

Mirror of Linux distributions
First, a pretty complete mirror of all Linux distros is available at ftp://ftp.nluug.nl/pub/os/Linux/distr/ -- as well as in many other places.


CentOS Linux
A great free distro that's essentially identical to RedHat Enterprise Linux is CentOS Linux.
Sybase ASE should run without problems on CentOS Linux (don't forget to increase shmmax -- when in doubt, see Michael Peppler's FAQ and install guide).

(For the record: I have no interests in CentOS whatsoever)

X/OS Linux
X/OS Linux used to be a great enterprise-grade Linux distribution which coudl be downloaded for free. Unfortunately, the folks behing X/OS could no longer afford to support a freely available distro. When you apply the updates to existing X/OS Linux packages, you end up with CentOS (see above).


 
 This document is located at www.sypron.nl/get_linux.html