#!/bin/bash

set -eu
set -o pipefail

# Must manually remove grub2 here, otherwise the download below does not work.
yum remove -y grub2

# Remove all old versions of grub2 from the yum cache and then ensure the
# latest version is in the cache.
basearch=$(cat /etc/yum/vars/basearch)
find /tmp/yum/$basearch -regex ".*/grub2-[0-9].*\.rpm" -exec rm -f {} +
install-packages -d grub2

# Copy grub2 rpm out of mounted yum cache for install during finalise
mkdir -p /tmp/grub
cp $(find /tmp/yum/$basearch -regex ".*/grub2-[0-9].*\.rpm") /tmp/grub
echo "rpm -i /tmp/grub/*.rpm" > /tmp/grub/install

#GRUB_CFG=/boot/grub2/grub.cfg

#[ -f "$GRUB_CFG" ]

# Update the config to have the search UUID of the image being built.
# When partition staging is moved to a separate stage, this will need to happen
# there. This generates a non-UUID config, which is irrelevant for booting with
# hypervisor kernel + ramdisk, and fixed up by 51-grub for vm images.
#GRUB_DISABLE_LINUX_UUID=true grub2-mkconfig -o $GRUB_CFG