Dear all, I would like to give linux 3.10~rc4 a try. For this I tried installing: $ sudo apt-get install linux-headers-3.1.0-rc4-amd64 -t experimental The following packages have unmet dependencies: linux-headers-3.1.0-rc4-amd64 : Depends: linux-kbuild-3.1.0 but it is not installable E: Broken packages I could not find where is linux-kbuild-3.1.0, ref: http://packages.debian.org/experimental/kernel/linux-headers-3.1.0-rc4-amd64 Thanks -- Mathieu