I asked about this on the xen-devel list a few days ago, but no one responded. I just asked a second time, but it has been my experience that the other xen-devel subscribers just ignore pleas for help. I'm an experienced developer, and I've tried searching the list archives as well as Google. I've done my best to ask intelligent questions - but still I am *completely* stymied. What I want to do is to build the xen and linux kernels without having the xen build download the linux source tarball from kernel.org. I have used git to get the tip/master branch of Linux - that's the version of Linux that is in development from the Xen folks. I can build a working kernel from it if I only build linux itself, without trying to also build xen. What I want to do is to get xen to build, but when it wants to build the Dom0 and DomU kernels, I want it to use my tip/master branch of the Linux sources that I retrieved with git. I have seen documentation that says I should be able to do this by rolling a .tar.bz2 of the kernel source, and then setting the environment variable XEN_LINUX_SOURCE=tarball, but it simply does not work - the kernel tarball is still downloaded with wget. I am incredibly frustrated. I'm grateful for any help you can give me. Mike -- Michael David Crawford mdcrawford at gmail dot com GoingWare's Bag of Programming Tricks http://www.goingware.com/tips/ -- Fedora-xen mailing list Fedora-xen@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-xen