The 2.6 series kernel only allows one owner of a block device (http://evms.sourceforge.net/install/kernel.html). I need to use the BD Claim patch.
This is the only change made to the default debian kernel. First get the config file of the debian binary (since we want it as identical as possible)
aptitude download linux-image-2.6.15-1-686
mkdir boot
dpkg-deb -x linux-image...deb boot/config-2.6.15-1-686
The config is now in the boot/config-2.6.15-1-686/boot dir
Now install the source (not sure of the dependencies)
aptitude install linux-source-2.6 kernel-patch-evms
cd /usr/src
tar jxf linux-source-2.6.15.tar.bz2
ln -s /usr/src/linux-source-2.6.15 linux
cd linux
cp <path>/boot/config-2.6.15-1-686 .config
export PATCHES=evms-bd-claim
PATCH_THE_KERNEL=AUTO make-kpkg --added-patches $PATCHES --initrd --append-to-version -evms kernel_image
cd ..
dpkg -i linux-image-2.6.15-evms_2.6.15-evms-10.00.Custom_i386.deb