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What is the proper way to install, for example, the Debian Squeeze libre kernel in Ubuntu Natty?

Is it safe to do so?

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1 Answer

up vote 2 down vote accepted
  • Get the source package from Debian
  • Check whether Debian or Ubuntu kernel has non-standard patches
  • If the kernel version is different, find out whether this affects userland.
  • Compare the configuration and adopt if necessary. (You can use the old .config file from Ubuntu when you make *config the new kernel.)
  • Compile
  • Make binary package through make-kpkg
  • Repeat for any relevant module
  • Install binary packages

However, according to the COPYRIGHT file natty's default kernel is free (licensed GPL): http://changelogs.ubuntu.com/changelogs/pool/main/l/linux/linux_2.6.38-11.48/copyright

Hence, removing all non-free packages should also meet your goal.

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