rpm-pkg: add %post section to create initramfs and grub hooks

/sbin/installkernel is used to insure grub hooks are
inserted and the initramfs is created on the
target system.

The invokation installkernel will work with any
kernel as long as:
- /sbin/installkernel exists
- the kernel and sysem map files are readable

Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

scripts/package/mkspec

@@ -112,6 +112,15 @@ echo ""
 echo "%clean"
 echo 'rm -rf $RPM_BUILD_ROOT'
 echo ""
+echo "%post"
+echo "if [ -x /sbin/installkernel -a -r /boot/vmlinuz-$KERNELRELEASE -a -r /boot/System.map-$KERNELRELEASE ]; then"
+echo "cp /boot/vmlinuz-$KERNELRELEASE /boot/vmlinuz-$KERNELRELEASE-rpm"
+echo "cp /boot/System.map-$KERNELRELEASE /boot/System.map-$KERNELRELEASE-rpm"
+echo "rm -f /boot/vmlinuz-$KERNELRELEASE /boot/System.map-$KERNELRELEASE"
+echo "/sbin/installkernel $KERNELRELEASE /boot/vmlinuz-$KERNELRELEASE-rpm /boot/System.map-$KERNELRELEASE-rpm"
+echo "rm -f /boot/vmlinuz-$KERNELRELEASE-rpm /boot/System.map-$KERNELRELEASE-rpm"
+echo "fi"
+echo ""
 echo "%files"
 echo '%defattr (-, root, root)'
 echo "%dir /lib/modules"