Thank you so much Anna ! Installing fsl-5.0-eddy-nonfree was a solution. Best regards, - Karl Dear Karl, We had the same problem on Debian “wheezy” . We solved the problem by running sudo apt-get install fsl-5.0-eddy-nonfree after running sudo apt-get install fsl-core I cannot explain you why it worked, but now we have a fully functional 5.0.9. Best, Anna. On Fri, Oct 16, 2015 at 4:21 PM, Michael Hanke <[log in to unmask]> wrote: Hi, On Fri, Oct 16, 2015 at 12:01 AM, Karl Woelfer <[log in to unmask]> wrote: We are not able to upgrade our 5.0.7 installation. apt-get install fsl-core says : Preparing to replace fsl-core_5.0.7-4 .... using fsl-core_5.0.9-1~nd70+1_all.deb but we still end up with version 5.0.7 I don't know what you mean by "end up". Please post the output of apt-cache policy fsl-5.0-core This will tell you what you ended up with, and what is available to you from where. If I download from fsldownloads/patches, I select fsl-sources-patch-5.0.9_from_5.0.x.tar.gz When I try to recompile, the build will not start. This message is displayed : ./config/common/buildproj not found You cannot patch the Debian package with this patch. Cheers, Michael