i wouldn't have been picky about the kernel section except that it's almost half of your document. if it would have been a sentence or two ("make sure your kernel is compiled with the linux-vserver patch") it would have been overlooked, but it's hard to understand why a "linux-vserver for debian" document is half about compiling a non-debian kernel.

my recommendation: don't have a kernel section at all besides referencing a good "building kernels the debian way" document (see other comments for urls) and a note to include the kernel-patch-vserver package (or an upstream patch if necessary).

just curious: as you track upstream kernels, how do you address kernel security? do you always upgrade to the latest kernel (as upstream kernels only receive security support from lkml for the current version; or has this changed?) or do you provide your own security updates (backporting security fixes from the latest upstream kernel to whatever kernel you decided to standardize on)?