Selecting a Kernel
Traditionally, one boots a domU image using a kernel stored in the dom0 filesystem, as in the sample config file in the last section. In this case, it's common to use the same kernel for domUs and the dom0. However, this can lead to trouble—one distro's kernels may be too specialized to work properly with another distro. We recommend either using the proper distro kernel, copying it into the dom0 filesystem so the domain builder can find it, or compiling your own generic kernel.
Another possible choice is to download Xen's binary distribution, which includes precompiled domU kernels, and extracting an appropriate domU kernel from that.
Alternatively (and this is the option that we usually use when dealing with distros that ship ...
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