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#!/bin/bash
# archinstall - A minimal Installation Script for Arch Linux
# Copyright (C) 2019 xengineering
# This program is free software: you can redistribute it and/or modify
# it 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 program 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.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
efi_partition_path=$1
system_encryption=$2
############ Add encryption setting in /etc/default/grub before calling grub-mkconfig
## to generate /boot/grub/grub.cfg
## See: https://wiki.archlinux.org/index.php/Dm-crypt/System_configuration#Boot_loader
mount $efi_partition_path /mnt
grub-install --target=x86_64-efi --efi-directory=/mnt --bootloader-id=GRUB \
--removable
if [ $system_encryption == "yes" ];then
cryptdevice_uuid=$(lsblk --fs | grep "${basename $main_partition_path}" | awk '{print $3}')
echo "cryptdevice_uuid: $cryptdevice_uuid"
old_kernel_param_line=$(cat /etc/default/grub | grep "GRUB_CMDLINE_LINUX_DEFAULT")
echo "old_kernel_param_line: $old_kernel_param_line"
new_kernal_param_line="GRUB_CMDLINE_LINUX_DEFAULT=\"loglevel=3 quiet cryptdevice=UUID=${cryptdevice_uuid}:main root=/dev/mapper/main\""
echo "new_kernel_param_line: $new_kernal_param_line"
echo "Adding kernel parameters to /etc/default/grub"
sed -i "s|$old_kernel_param_line|$new_kernal_param_line|" /etc/default/grub
fi
grub-mkconfig -o /boot/grub/grub.cfg
umount $efi_partition_path
echo "Installed bootloader - OK"
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