#!/bin/bash
#
# This is an example script that install and configure grub after installation.
# To use it put it in your CUSTOMIZE_DIR and make it executable.
#
# Do not include grub in EXTRA_PKGS of
# $sysconfdir/default/ganeti-instance-debootstrap because it will
# cause error of debootstrap.

set -e

. common.sh

CLEANUP=( )

trap cleanup EXIT

if [ -z "$TARGET" -o ! -d "$TARGET" ]; then
  echo "Missing target directory"
  exit 1
fi

# install grub
export LANG=C
if [ "$PROXY" ]; then
  export http_proxy="$PROXY"
  export https_proxy="$PROXY"
fi

umount_sys_fuse()
{
	umount $TARGET/sys/fs/fuse/connections 2>/dev/null || true
}

mount --bind /dev $TARGET/dev
CLEANUP+=("umount $TARGET/dev")
mount --bind /proc $TARGET/proc
CLEANUP+=("umount $TARGET/proc")
mount --bind /sys $TARGET/sys
CLEANUP+=("umount $TARGET/sys")
CLEANUP+=("umount_sys_fuse")

DEBIAN_FRONTEND=noninteractive chroot "$TARGET" apt-get -y install grub-pc grub-common

echo "(hd0) $BLOCKDEV" > $TARGET/boot/grub/device.map
CLEANUP+=("rm $TARGET/boot/grub/device.map")

chroot "$TARGET" sed -Ei 's/^(GRUB_CMDLINE_LINUX=\".*)\"$/\1 net.ifnames=0"/' /etc/default/grub
chroot "$TARGET" grub-install "(hd0)"
GRUB_DISABLE_OS_PROBER=true chroot "$TARGET" update-grub
echo 'grub-pc grub-pc/install_devices multiselect /dev/xvda' | chroot "$TARGET" debconf-set-selections

# execute cleanups
cleanup
trap - EXIT

exit 0