#!/usr/bin/env bash

ID=fedora
export ID
export BOOT_DISK="/dev/sda"
export BOOT_PART="1"
export BOOT_DEVICE="${BOOT_DISK}${BOOT_PART}"
export POOL_DISK="/dev/sda"
export POOL_PART="2"
export POOL_DEVICE="${POOL_DISK}${POOL_PART}"


cat << EOF > /etc/dracut.conf.d/zol.conf
nofsck="yes"
add_dracutmodules+=" zfs "
omit_dracutmodules+=" btrfs "
install_items+=" /etc/zfs/zroot.key "
EOF

source /etc/os-release

rpm -e --nodeps zfs-fuse

dnf config-manager setopt updates.enabled=0

dnf --releasever=${VERSION_ID} install -y \
  https://zfsonlinux.org/fedora/zfs-release-3-0$(rpm --eval "%{dist}").noarch.rpm

dnf install -y https://dl.fedoraproject.org/pub/fedora/linux/releases/${VERSION_ID}/Everything/x86_64/os/Packages/k/kernel-devel-$(uname -r).rpm

dnf install -y zfs

dnf install -y zfs-dracut

dnf config-manager setopt updates.enabled=1

dracut --force --regenerate-all

zfs set org.zfsbootmenu:commandline="quiet rhgb" zroot/ROOT

zfs set org.zfsbootmenu:keysource="zroot/ROOT/${ID}" zroot

mkfs.vfat -F32 "$BOOT_DEVICE"

cat << EOF >> /etc/fstab
$( blkid | grep "$BOOT_DEVICE" | cut -d ' ' -f 2 ) /boot/efi vfat defaults 0 0
EOF

mkdir -p /boot/efi
mount /boot/efi

mkdir -p /boot/efi/EFI/ZBM
curl -o /boot/efi/EFI/ZBM/VMLINUZ.EFI -L https://get.zfsbootmenu.org/efi
cp /boot/efi/EFI/ZBM/VMLINUZ.EFI /boot/efi/EFI/ZBM/VMLINUZ-BACKUP.EFI

mount -t efivarfs efivarfs /sys/firmware/efi/efivars

efibootmgr -c -d "$BOOT_DISK" -p "$BOOT_PART" \
  -L "ZFSBootMenu (Backup)" \
  -l '\EFI\ZBM\VMLINUZ-BACKUP.EFI'

efibootmgr -c -d "$BOOT_DISK" -p "$BOOT_PART" \
  -L "ZFSBootMenu" \
  -l '\EFI\ZBM\VMLINUZ.EFI'

mv /etc/resolv.conf.orig /etc/resolv.conf

exit