3.0 - Obtaining OpenBSD

3.1 - Buying an OpenBSD CD

Purchasing an OpenBSD CD is generally the best way to get started. Visit the ordering page to purchase your copy: http://www.openbsd.org/orders.html.

There are many good reasons to own an OpenBSD CD:

If you're installing a release version of OpenBSD, you should use a CD. Snapshot releases can only be installed over the network.

3.1.1 - Buying OpenBSD T-Shirts

Yes, OpenBSD now has t-shirts for your wearing enjoyment. You can view these at http://www.OpenBSD.org/tshirts.html. Enjoy :)

3.1.2 - Does OpenBSD provide an ISO image available for download?

In a word, no. The OpenBSD project does not make the ISO images used to master the official CDs available for download. The reason is simply that we would like you to buy the CD sets, helping fund the ongoing OpenBSD development. The official OpenBSD CD-ROM layout is copyright Theo de Raadt. Theo does not permit peple to redistribute images of the official OpenBSD CDs. As an incentive for people to buy the CD set, some extras are included in the package as well (artwork, stickers etc).

Note that only the CD layout is copyrighted, OpenBSD itself is free. Nothing precludes someone else to just grab OpenBSD and make their own CD. If for some reason you want to download a CD image, try searching the mailing list archives for possible sources. Of course, any OpenBSD ISO images available on the Internet either violate Theo de Raadt's copyright or are not official images. The source of an unofficial image may or may not be trustworthy, it is up to you to determine this for yourself. We suggest that people who want to download OpenBSD for free use the FTP install option.

3.2 - Downloading via FTP or AFS

There are numerous international mirror sites offering FTP access to OpenBSD releases and snapshots. AFS access is also available. You should always use the site closest to you. Before you begin fetching a release or snapshot, you may wish to use ping and traceroute to determine which mirror site is nearest to you and whether that nearest mirror is performing adequately. Of course, your OpenBSD release CD is always closer than any mirror. Access information is here:


3.3 - Obtaining Current Source Code

Source to OpenBSD is freely redistributable and available at no charge. Generally the best way to get started with a current source tree is to install the source from the most recent CD and then configure AnonCVS to update it regularly. Information about AnonCVS, including how to set it up, is available here:


or check The OpenBSD FAQ

If you don't have sufficient network bandwidth to support AnonCVS, or if your Internet access is via UUCP, you can still keep your source current by using CTM instead of AnonCVS. If that's your situation, then starting with a recent release CD is even more important. Information about CTM, including how to set it up, is available here:


Yet another alternative is to get the source code from the web. You can do that through cvsweb at:


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