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File shim-install of Package shim

#! /bin/bash -e

rootdir=
bootdir=
efidir=
install_device=
efibootdir=
ca_string=
removable=no
clean=no
sysconfdir="/etc"
libdir="/usr/lib64"
source_dir="$libdir/efi"
grub_probe="`which grub2-probe`"
grub_mkrelpath="`which grub2-mkrelpath`"
grub_install="`which grub2-install`"
self="`basename $0`"
grub_cfg="/boot/grub2/grub.cfg"
update_boot=no

# Get GRUB_DISTRIBUTOR.
if test -f "${sysconfdir}/default/grub" ; then
    . "${sysconfdir}/default/grub"
fi

if [ x"${GRUB_DISTRIBUTOR}" = x ] && [ -f "${sysconfdir}/os-release" ] ; then
    . "${sysconfdir}/os-release"
    GRUB_DISTRIBUTOR="${NAME} ${VERSION}"
fi

bootloader_id="$(echo "$GRUB_DISTRIBUTOR" | tr 'A-Z' 'a-z' | cut -d' ' -f1)"
if test -z "$bootloader_id"; then
    bootloader_id=grub
fi

efi_distributor="$bootloader_id"
bootloader_id="${bootloader_id}-secureboot"

case "$bootloader_id" in
    "sle"*)
        ca_string='SUSE Linux Enterprise Secure Boot CA1';;
    "opensuse"*)
        ca_string='openSUSE Secure Boot CA1';;
    *) ca_string="";;
esac

usage () {
    echo "Usage: $self [OPTION] [INSTALL_DEVICE]"
    echo
    echo "Install Secure Boot Loaders on your drive.\n"
    echo
    echo "--directory=DIR use images from DIR.\n"
    echo "--grub-probe=FILE use FILE as grub-probe.\n"
    echo "--removable the installation device is removable.\n"
    echo "--bootloader-id=ID the ID of bootloader.\n"
    echo "--efi-directory=DIR use DIR as the EFI System Partition root.\n"
    echo "--config-file=FILE use FILE as config file, default is $grub_cfg.\n"
    echo "--clean remove all installed files and configs.\n"
    echo
    echo "INSTALL_DEVICE must be system device filename.\n"
}

argument () {
  opt="$1"
  shift

if test $# -eq 0; then
      echo "$0: option requires an argument -- \`$opt'" 1>&2
      exit 1
  fi
  echo "$1"
}

# Check the arguments.
while test $# -gt 0
do
    option=$1
    shift

case "$option" in
    -h | --help)
	usage
	exit 0 ;;

--root-directory)
	rootdir="`argument $option "$@"`"; shift;;
    --root-directory=*)
	rootdir="`echo "$option" | sed 's/--root-directory=//'`" ;;

--efi-directory)
	efidir="`argument $option "$@"`"; shift;;
    --efi-directory=*)
	efidir="`echo "$option" | sed 's/--efi-directory=//'`" ;;

--directory | -d)
	source_dir="`argument $option "$@"`"; shift;;
    --directory=*)
	source_dir="`echo "$option" | sed 's/--directory=//'`" ;;

--bootloader-id)
	bootloader_id="`argument $option "$@"`"; shift;;
    --bootloader-id=*)
	bootloader_id="`echo "$option" | sed 's/--bootloader-id=//'`" ;;

--grub-probe)
	grub_probe="`argument "$option" "$@"`"; shift;;
    --grub-probe=*)
	grub_probe="`echo "$option" | sed 's/--grub-probe=//'`" ;;

--config-file)
	grub_cfg="`argument "$option" "$@"`"; shift;;
    --config-file=*)
	grub_cfg="`echo "$option" | sed 's/--config-file=//'`" ;;

--removable)
	removable=yes ;;

--clean)
	clean=yes ;;

-*)
	echo "Unrecognized option \`$option'"  1>&2
	usage
	exit 1
	;;
    *)
	if test "x$install_device" != x; then
	    echo "More than one install device?" 1>&2
	    usage
	    exit 1
	fi
	install_device="${option}" ;;
    esac
done

if test -n "$efidir"; then
    efi_fs=`"$grub_probe" --target=fs "${efidir}"`
    if test "x$efi_fs" = xfat; then :; else
	echo "$efidir doesn't look like an EFI partition." 1>&2
	efidir=
    fi
fi

if [ -z "$bootdir" ]; then
    bootdir="/boot"
    if [ -n "$rootdir" ] ; then
        # Initialize bootdir if rootdir was initialized.
        bootdir="${rootdir}/boot"
    fi
fi

# Find the EFI System Partition.
if test -n "$efidir"; then
    install_device="`"$grub_probe" --target=device --device-map= "${efidir}"`"
else
    if test -d "${bootdir}/efi"; then
        install_device="`"$grub_probe" --target=device --device-map= "${bootdir}/efi"`"
        # Is it a mount point?
        if test "x$install_device" != "x`"$grub_probe" --target=device --device-map= "${bootdir}"`"; then
    	efidir="${bootdir}/efi"
        fi
    elif test -d "${bootdir}/EFI"; then
        install_device="`"$grub_probe" --target=device --device-map= "${bootdir}/EFI"`"
        # Is it a mount point?
        if test "x$install_device" != "x`"$grub_probe" --target=device --device-map= "${bootdir}"`"; then
    	efidir="${bootdir}/EFI"
        fi
    elif test -n "$rootdir" && test "x$rootdir" != "x/"; then
    # The EFI System Partition may have been given directly using
    # --root-directory.
        install_device="`"$grub_probe" --target=device --device-map= "${rootdir}"`"
    # Is it a mount point?
        if test "x$install_device" != "x`"$grub_probe" --target=device --device-map= "${rootdir}/.."`"; then
    	efidir="${rootdir}"
        fi
    fi

if test -n "$efidir"; then
        efi_fs=`"$grub_probe" --target=fs "${efidir}"`
        if test "x$efi_fs" = xfat; then :; else
    	echo "$efidir doesn't look like an EFI partition." 1>&2
    	efidir=
        fi
    fi
fi

if test -n "$efidir"; then
    efi_file=shim.efi
    efibootdir="$efidir/EFI/boot"
    mkdir -p "$efibootdir" || exit 1
    efidir="$efidir/EFI/$efi_distributor"
    mkdir -p "$efidir" || exit 1
else
    exit 1;
fi

if test -f "$efibootdir/bootx64.efi"; then
    if test -n "$ca_string" && (grep -q "$ca_string" "$efibootdir/bootx64.efi"); then
        update_boot=yes
    fi
else
    update_boot=yes
fi

if test "$clean" = "yes"; then
    rm -f "${efidir}/shim.efi"
    rm -f "${efidir}/MokManager.efi"
    rm -f "${efidir}/grub.efi"
    rm -f "${efidir}/grub.cfg"
    rm -f "${efidir}/boot.csv"
    if test "$update_boot" = "yes"; then
        rm -f "${efibootdir}/bootx64.efi"
        rm -f "${efibootdir}/fallback.efi"
    fi
    efibootmgr="`which efibootmgr`"
    if test "$removable" = no && test -n "$bootloader_id" && test -n "$efibootmgr"; then
        # Delete old entries from the same distributor.
        for bootnum in `efibootmgr | grep '^Boot[0-9]' | \
            fgrep -i " $bootloader_id" | cut -b5-8`; do
            efibootmgr -b "$bootnum" -B
        done
	fi
	exit 0
fi

cp "${source_dir}/shim.efi" "${efidir}"
cp "${source_dir}/MokManager.efi" "${efidir}"
cp "${source_dir}/grub.efi" "${efidir}"
echo "shim.efi,${bootloader_id}" | iconv -f ascii -t ucs2 > "${efidir}/boot.csv"
if test "$update_boot" = "yes"; then
    cp "${source_dir}/shim.efi" "${efibootdir}/bootx64.efi"
    cp "${source_dir}/fallback.efi" "${efibootdir}"
fi

make_grubcfg () {

grub_cfg_dirname=`dirname $grub_cfg`
grub_cfg_basename=`basename $grub_cfg`
cfg_fs_uuid=`"$grub_probe" --target=fs_uuid "$grub_cfg_dirname"`

if test "x$SUSE_BTRFS_SNAPSHOT_BOOTING" = "xtrue"; then
cat <<EOF
set btrfs_relative_path="yes"
EOF
if ${grub_mkrelpath} --usage | grep -q -e '--relative'; then
  grub_mkrelpath="${grub_mkrelpath} -r"
fi
fi

if [ x$GRUB_ENABLE_CRYPTODISK = xy ]; then
  for uuid in `"${grub_probe}" --target=cryptodisk_uuid --device-map= "${grub_cfg_dirname}"`; do
    echo "cryptomount -u $uuid"
  done
fi

cat <<EOF
search --fs-uuid --set=root ${cfg_fs_uuid}
set prefix=(\${root})`${grub_mkrelpath} ${grub_cfg_dirname}`
configfile \$prefix/${grub_cfg_basename}
EOF

}

make_grubcfg > "${efidir}/grub.cfg"
# bnc#889765 GRUB shows broken letters at boot
# invoke grub_install to initialize /boot/grub2 directory with files needed by grub.cfg
${grub_install} --no-nvram

efibootmgr="`which efibootmgr`"
if test "$removable" = no && test -n "$bootloader_id" && test -n "$efibootmgr"; then

modprobe -q efivars 2>/dev/null || true

# Delete old entries from the same distributor.
    for bootnum in `efibootmgr | grep '^Boot[0-9]' | \
        fgrep -i " $bootloader_id" | cut -b5-8`; do
        efibootmgr -b "$bootnum" -B
    done

efidir_drive="$("$grub_probe" --target=drive --device-map= "$efidir")"
    efidir_disk="$("$grub_probe" --target=disk --device-map= "$efidir")"
    if test -z "$efidir_drive" || test -z "$efidir_disk"; then
        echo "Can't find GRUB drive for $efidir; unable to create EFI Boot Manager entry." >&2
    else
        efidir_part="$(echo "$efidir_drive" | sed 's/^([^,]*,[^0-9]*//; s/[^0-9].*//')"
        efibootmgr -c -d "$efidir_disk" -p "$efidir_part" -w \
    	-L "$bootloader_id" -l "\\EFI\\$efi_distributor\\$efi_file"
    fi
fi

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