#!/bin/sh
# Filename:      ${GRML_FAI_CONFIG}/config/scripts/GRMLBASE/80-initramfs
# Purpose:       configure initramfs and rebuild it
# Authors:       grml-team (grml.org)
# Bug-Reports:   see http://grml.org/bugs/
# License:       This file is licensed under the GPL v2 or any later version.
################################################################################

set -u
set -e

fcopy -v /etc/initramfs-tools/hooks/000-udev-shutup
fcopy -v /etc/initramfs-tools/conf.d/xz-compress

# used for grml-live's netboot package
fcopy -i -B -v -r /etc/grml-netboot

if ! [ -f $target/usr/share/initramfs-tools/scripts/live ] ; then
  echo "Error: live-boot/-initramfs does not seem to be present, can not create initramfs. Exiting.">&2
  exit 1
fi

echo "Rebuilding initramfs"

for initrd in "$(basename $target/boot/vmlinuz-*)" ; do
  if ! $ROOTCMD update-initramfs -k "${initrd##vmlinuz-}" -c ; then
    echo "Creating fresh initramfs did not work, trying update instead:"
    $ROOTCMD update-initramfs -k "${initrd##vmlinuz-}" -u
  fi

  # write it to /grml-live/, as we ignore that directory via
  # /etc/grml/fai/config/grml/squashfs-excludes, to
  # not include the file into the ISO itself, but have
  # it available for netboot package usage
  if [ -d "${target}"/etc/grml-netboot ] ; then
    echo "Creating netboot initrd file (/grml-live/netboot.initrd)"
    $ROOTCMD mkinitramfs -d /etc/grml-netboot -o /grml-live/netboot.initrd -k "${initrd##vmlinuz-}"
  else
    echo "Warning: /etc/grml-netboot doesn't exist, skipping netboot initrd generation."
  fi
done