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What I Learned From Ubuntu

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Mark Shuttleworth and a few Ubuntu developers stopped by the Sun Menlo Park campus on Friday May 4th. I'm not working with Ubuntu, but since I'm involved with the Solaris Companion and with general OpenSolaris issues, I wanted to see what they had to say about third-party packages and about how they do their releases.

You can organize Ubuntu packages along two dimensions. The first dimension is whether the package is free (libre). The second dimension is whether Canonical (Ubuntu's corporate sponsor) provides support (e.g., security fixes). This gives us the following table:

Notice that Canonical only supports 10% of the packages in the distro.

There are two levels of access to the third-party packages. The first level is an engineering repository which bypasses Canonical. That is, people can update the repository at any time, without regard to the Ubuntu release schedule. The second level is the actual distro, which has tighter controls.

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