#!/bin/sh

f()
{
    sudo /usr/sbin/mkinitramfs \
         -d /usr/local/lib/samizdat-rhizome/initramfs-tools/ \
         -o "/boot/initrd.img-$1.samizdat" \
         -k "$1" || return
    sudo ln -sf "initrd.img-$1.samizdat" /boot/initrd.img
}

if [ "$1" ]
then
  f "$1" || exit
  sudo ln -sf "vmlinuz-$1" /boot/vmlinuz
else
  l=$(readlink /boot/vmlinuz)
  v=${l#vmlinuz-}
  f "$v"
fi