pacman hook to build an initramfs for kernel (cause the linux-armv7 doesn't do it itself)

initcpio.hook

# /etc/pacman.d/hooks/initcpio.hook
[Trigger]
Operation = Install
Operation = Upgrade
Type = File
Target = usr/lib/modules/extramodules-*/version

[Action]
When = PostTransaction
Exec = /etc/pacman.d/hooks/initcpio.sh
Depends = mkinitcpio 
NeedsTargets

initcpio.sh

#!/bin/bash
#while read TARGET; do
#  echo `<$TARGET`
#done

# TARGET is /usr/lib/modules/extramodules*/version
read TARGET

kver=`<$TARGET`
mkinitcpio  -g /boot/initramfs-linux.img -k "$kver"

# TODO: extract KERNEL_NAME from TARGET: for -ARCH it's "", lts, etc

doesn't support more than one kernel, but on my BeagleBoard-xM I can't have that easily anyway