We currently provide precompiled packages for various GNU/Linux distributions. If no binary is provided for your system you need to follow the instructions for getting the source and building it.
If you need help, please feel free to subscribe one of the mailinglists.

Note: the OGo Knoppix CD has an own web page: OGo Knoppix

Note: Package download is currently in flux due to the preparation of OGo 1.0a. Please report broken links to feedback@opengroupware.org.

Since the move from CVS to Subversion, the OGo developers can easily provide alpha quality snapshots. Previously the OGo project only provided so called "nightly builds" which where generated from the very latest source changes of the developers (so called "CVS HEAD").
While those nightly builds provided a very good quality due to the maturity of the OGo sourcecode base, you could still run into "grape builds", builds which were broken due to recent changes.
So what was formerly provided by "nightly builds", the CVS HEAD, is now called "trunk" in Subversion terminology. If you fetch a trunk build, you get the very latest changes (including the very latest bugs).
This is where 'releases' come in. With Subversion its very easy to freeze a certain 'trunk' as a release. Note that a release can be of Alpha quality, that is, it got minimal testing. Yet a release is 'frozen' and it is ensured that the release isn't a "grape build".
Summary: use some release, unless you know what you are doing :-)

OGo 1.0a Debian packages are in preparation and will be available really soon .
Update: Trunk builds on Sid and Sarge are now available.
If you can't wait, the 'old' pre-Svn packages are still available in the debian-old directory on download.opengroupware.org.

Note that instead of performing a manual download, we recommend to use apt4rpm on RPM systems or apt on Debian.
On Fedora you can also choose to use yum (though apt4rpm works just fine on Fedora as well).
Some instructions on configuring OGo download with apt4rpm and yum can be found at the bottom of the download page.

Remember that not all release builds are "final" releases (like 1.0), but also contain Alpha quality releases.

Source RPMS and RPMS for RedHat Enterprise 3.0 Beta are provided by Harald Hoyer: OGo Source-RPMS, thanks!
Wil Cooley provides packages built on RedHat 7.3, thanks!

Luca has created a set of unofficial Slackware packages, please take a look at the How-To (Italian).
Download!

A FreeBSD port can be found here: http://download.opengroupware.org/packages/freebsd/linux-opengroupware/.

Please follow the developer instructions on getting the OpenGroupware.org source code and building on your platform. Building OGo on Unix systems isn't particulary difficult and you can find help in one of our mailinglists.
Also be sure to visit our porting projects!