scripts: add back grub

Signed-off-by: AuxXxilium <info@auxxxilium.tech>

scripts/grub.sh

@@ -0,0 +1,74 @@
+#!/usr/bin/env bash
+#
+# Copyright (C) 2023 AuxXxilium <https://github.com/AuxXxilium> and Ing <https://github.com/wjz304>
+#
+# This is free software, licensed under the MIT License.
+# See /LICENSE for more information.
+#
+
+GRUB=${1:-"grub-2.12"}
+BIOS=${2:-"i386-pc i386-efi x86_64-efi"}
+NAME=${3:-"ARC"}
+
+curl -#kLO https://ftp.gnu.org/gnu/grub/${GRUB}.tar.gz
+tar -zxvf ${GRUB}.tar.gz
+
+pushd ${GRUB}
+echo depends bli part_gpt > grub-core/extra_deps.lst
+for B in ${BIOS}; do
+  b=${B}
+  b=(${b//-/ })
+  echo "Make ${b[@]} ..."
+  mkdir -p ${B}
+  pushd ${B}
+  ../configure --prefix=$PWD/usr -sbindir=$PWD/sbin --sysconfdir=$PWD/etc --disable-werror --target=${b[0]} --with-platform=${b[1]}
+  make
+  make install
+  popd
+done
+popd
+
+rm -f grub.img
+dd if=/dev/zero of=grub.img bs=1M seek=1024 count=0
+echo -e "n\np\n1\n\n+32M\nn\np\n2\n\n+84M\nn\np\n3\n\n\na\n1\nw\nq\n" | fdisk grub.img
+fdisk -l grub.img
+
+LOOPX=$(sudo losetup -f)
+sudo losetup -P ${LOOPX} grub.img
+sudo mkdosfs -F32 -n ${NAME}1 ${LOOPX}p1
+sudo mkfs.ext2 -F -L ${NAME}2 ${LOOPX}p2
+sudo mkfs.ext4 -F -L ${NAME}3 ${LOOPX}p3
+
+rm -rf ${NAME}1
+mkdir -p ${NAME}1
+sudo mount ${LOOPX}p1 ${NAME}1
+
+sudo mkdir -p ${NAME}1/EFI
+sudo mkdir -p ${NAME}1/boot/grub
+cat >device.map <<EOF
+(hd0)   ${LOOPX}
+EOF
+sudo mv device.map ${NAME}1/boot/grub/device.map
+
+for B in ${BIOS}; do
+  args=""
+  args+=" ${LOOPX} --target=${B} --no-floppy --recheck --grub-mkdevicemap=${NAME}1/boot/grub/device.map --boot-directory=${NAME}1/boot"
+  if [[ "${B}" == *"efi" ]]; then
+    args+=" --efi-directory=${NAME}1 --removable --no-nvram"
+  else
+    args+=" --root-directory=${NAME}1"
+  fi
+  sudo ${GRUB}/${B}/grub-install ${args}
+done
+
+if [ -d ${NAME}1/boot/grub/fonts ] && [ -f /usr/share/grub/unicode.pf2 ]; then
+  sudo cp /usr/share/grub/unicode.pf2 ${NAME}1/boot/grub/fonts
+fi
+
+sudo sync
+
+sudo umount ${LOOPX}p1
+sudo losetup -d ${LOOPX}
+sudo rm -rf ${NAME}1
+
+gzip grub.img