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+#!/usr/bin/env bash
+
+##
+## grub-mkconfig helper script specific to Parabola GNU/Linux-libre
+## Contributed by "Keshav Amburay" <the ddoott ridikulus ddoott rat aatt geemmayil ddoott ccoomm>
+## Rebranded for Parabola by "André Silva" <emulatorman@parabola.nu>
+## Updated on 08 February 2014
+##
+## Script based on do_grub_config() function in Arch Archboot ISO Installer/Setup script
+## Some parts taken from /etc/grub.d/10_linux script shipped by GRUB(2) upstream
+##
+## This script can be freely distributed and/or modified
+## under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This script is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+
+_FUNC_GRUB_FILE_PRESENT() {
+
+ [[ -z "${GRUB_PLATFORM}" ]] && GRUB_PLATFORM="x86"
+
+ if [[ "${GRUB_PLATFORM}" == "x86" ]]; then
+ check="--is-x86-linux32"
+ elif [[ "${GRUB_PLATFORM}" == "i386-xen-pae" ]]; then
+ check="--is-i386-xen-pae-domu"
+ elif [[ "${GRUB_PLATFORM}" == "x86_64-xen" ]]; then
+ check="--is-x86_64-xen-domu"
+ else
+ check="--is-${GRUB_PLATFORM}-linux"
+ fi
+
+ case "${GRUB_PLATFORM}" in
+ x86)
+ list="$(for i in "${GRUB_ROOT}"/boot/vmlinuz-linux* ; do
+ if grub_file_is_not_garbage "${i}" && "${grub_file}" ${check} "${i}" ; then echo -n "${i} " ; fi
+ done)" ;;
+ *)
+ list="$(for i in "${GRUB_ROOT}"/boot/vmlinuz-linux* ; do
+ if grub_file_is_not_garbage "${i}" && "${grub_file}" ${check} "${i}" ; then echo -n "${i} " ; fi
+ done)" ;;
+ esac
+}
+
+set -e
+
+prefix="/usr"
+exec_prefix="${prefix}"
+datarootdir="/usr/share"
+datadir="${datarootdir}"
+sysconfdir="/etc"
+
+. "${datarootdir}/grub/grub-mkconfig_lib"
+
+. "${sysconfdir}/default/grub"
+
+export TEXTDOMAIN="grub"
+export TEXTDOMAINDIR="${datarootdir}/locale"
+
+CLASS="--class parabola --class gnu-linux --class gnu --class os"
+
+[[ "${grub_file}" != "" ]] && _FUNC_GRUB_FILE_PRESENT
+
+BOOT_PART_FS_UUID="$(${grub_probe} --target="fs_uuid" "/boot" 2>/dev/null)"
+BOOT_PART_HINTS_STRING="$(${grub_probe} --target="hints_string" "/boot" 2>/dev/null || true)"
+BOOT_PART_FS="$(${grub_probe} --target="fs" "/boot" 2>/dev/null)"
+
+ROOT_PART_GRUB_DEVICE="$(${grub_probe} --target=device / || true)"
+ROOT_PART_FS="$(${grub_probe} --device ${ROOT_PART_GRUB_DEVICE} --target=fs 2> /dev/null || echo "unknown")"
+
+if [[ "${GRUB_LINUX_ROOT_DEVICE}" == "" ]]; then
+
+ case "${ROOT_PART_FS}" in
+ btrfs)
+ rootsubvol="$(make_system_path_relative_to_its_root /)"
+ rootsubvol="${rootsubvol#/}"
+ if [[ "${rootsubvol}" != "" ]]; then
+ GRUB_LINUX_ROOT_DEVICE="subvol=${rootsubvol}"
+ fi
+ ;;
+ zfs)
+ rpool="$(${grub_probe} --device ${GRUB_DEVICE} --target=fs_label 2>/dev/null || true)"
+ bootfs="$(make_system_path_relative_to_its_root / | sed -e "s,@$,,")"
+ GRUB_LINUX_ROOT_DEVICE="ZFS=${rpool}${bootfs}"
+ ;;
+ esac
+
+ if [[ "${GRUB_DEVICE_UUID}" == "" ]] || \
+ [[ "${GRUB_DISABLE_LINUX_UUID}" == "true" ]] || \
+ [[ ! -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" ]] || \
+ uses_abstraction "${GRUB_DEVICE}" lvm ; then
+ GRUB_LINUX_ROOT_DEVICE="${GRUB_DEVICE}"
+ else
+ GRUB_LINUX_ROOT_DEVICE="UUID=${GRUB_DEVICE_UUID}"
+ fi
+fi
+
+[[ "${GRUB_LINUX_PARAMS}" == "" ]] && GRUB_LINUX_PARAMS="${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}"
+
+for _KERNEL_ in ${list} ; do
+
+ echo "Found linux image: ${_KERNEL_}" >&2
+
+ basename="$(basename "${_KERNEL_}")"
+ dirname="$(dirname "${_KERNEL_}")"
+ REAL_DIR="$(make_system_path_relative_to_its_root "${dirname}")"
+
+ _KERNEL_FILE_="$(echo ${_KERNEL_} | sed 's,/boot/,,g')"
+ _KERNEL_PKG_="pkg-$(echo ${_KERNEL_FILE_} | sed 's,vmlinuz-,,g')"
+
+ _INITRAMFS_="${_KERNEL_FILE_/vmlinuz-/initramfs-}.img"
+
+ if [[ -e "/boot/${_INITRAMFS_}" ]]; then
+
+ echo "Found initramfs image: /boot/${_INITRAMFS_}" >&2
+
+cat << EOF
+
+menuentry "Parabola GNU/Linux-libre ${_KERNEL_PKG_} kernel" ${CLASS} {
+ $(save_default_entry)
+ if [ x\$feature_all_video_module = xy ]; then
+ insmod all_video
+ fi
+ set gfxpayload=keep
+ insmod ${BOOT_PART_FS}
+ if [ x\$feature_platform_search_hint = xy ]; then
+ search --no-floppy --fs-uuid --set=root ${BOOT_PART_HINTS_STRING} ${BOOT_PART_FS_UUID}
+ else
+ search --no-floppy --fs-uuid --set=root ${BOOT_PART_FS_UUID}
+ fi
+ echo 'Loading Parabola GNU/Linux-libre ${_KERNEL_PKG_} kernel ...'
+ linux ${REAL_DIR}/${_KERNEL_FILE_} root=${GRUB_LINUX_ROOT_DEVICE} rw ${GRUB_LINUX_PARAMS}
+ echo 'Loading Parabola GNU/Linux-libre ${_KERNEL_PKG_} kernel initramfs ...'
+ initrd ${REAL_DIR}/${_INITRAMFS_}
+}
+
+EOF
+ fi
+
+ _INITRAMFS_FALLBACK_="${_KERNEL_FILE_/vmlinuz-/initramfs-}-fallback.img"
+
+ if [[ -e "/boot/${_INITRAMFS_FALLBACK_}" ]]; then
+
+ echo "Found fallback initramfs image: /boot/${_INITRAMFS_FALLBACK_}" >&2
+
+cat << EOF
+
+menuentry "Parabola GNU/Linux-libre ${_KERNEL_PKG_} kernel (fallback initramfs)" ${CLASS} {
+ $(save_default_entry)
+ if [ x\$feature_all_video_module = xy ]; then
+ insmod all_video
+ fi
+ set gfxpayload=keep
+ insmod ${BOOT_PART_FS}
+ if [ x\$feature_platform_search_hint = xy ]; then
+ search --no-floppy --fs-uuid --set=root ${BOOT_PART_HINTS_STRING} ${BOOT_PART_FS_UUID}
+ else
+ search --no-floppy --fs-uuid --set=root ${BOOT_PART_FS_UUID}
+ fi
+ echo 'Loading Parabola GNU/Linux-libre ${_KERNEL_PKG_} kernel ...'
+ linux ${REAL_DIR}/${_KERNEL_FILE_} root=${GRUB_LINUX_ROOT_DEVICE} rw ${GRUB_LINUX_PARAMS}
+ echo 'Loading Parabola GNU/Linux-libre ${_KERNEL_PKG_} kernel fallback initramfs ...'
+ initrd ${REAL_DIR}/${_INITRAMFS_FALLBACK_}
+}
+
+EOF
+ fi
+
+ if [[ ! -e "/boot/${_INITRAMFS_}" ]] && [[ ! -e "/boot/${_INITRAMFS_FALLBACK_}" ]]; then
+cat << EOF
+
+menuentry "Parabola GNU/Linux-libre ${_KERNEL_PKG_} kernel (no initramfs)" ${CLASS} {
+ $(save_default_entry)
+ if [ x\$feature_all_video_module = xy ]; then
+ insmod all_video
+ fi
+ set gfxpayload=keep
+ insmod ${BOOT_PART_FS}
+ if [ x\$feature_platform_search_hint = xy ]; then
+ search --no-floppy --fs-uuid --set=root ${BOOT_PART_HINTS_STRING} ${BOOT_PART_FS_UUID}
+ else
+ search --no-floppy --fs-uuid --set=root ${BOOT_PART_FS_UUID}
+ fi
+ echo 'Loading Parabola GNU/Linux-libre ${_KERNEL_PKG_} kernel ...'
+ linux ${REAL_DIR}/${_KERNEL_FILE_} root=${GRUB_LINUX_ROOT_DEVICE} rw ${GRUB_LINUX_PARAMS}
+}
+
+EOF
+ fi
+
+done
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