#!/bin/bash

# Copyright (C) 2017-2018 Daniel Tartavel-jeannot   <contact@librepc.com>
# Copyright (C) 2019-2020 Jean-Baptiste Biernacki   <j.biernacki@free.fr>
#

# 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 2 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 <http://www.gnu.org/licenses/>.

export ARCH=arm64

# remove the warning:
#   186/194: lockdev               warning: group lock does not exist - using root
# #############################################
groupadd -r lock

/usr/bin/chown :shadow /etc/shadow /etc/gshadow /etc/login.defs /etc/pam.d/chage-chfn-chsh /etc/pam.d/chpasswd-newusers /etc/pam.d/system-auth /etc/pam.d/user-group-mod /bin/passwd /bin/chage

/usr/bin/chown :systemd-journal -R /var/log/journal

#Install all packages you need
<INSTALL_EXEC> basesystem grub2-efi efibootmgr chrony polkit lockdev rng-tools man openssh-server rfkill wireless-tools bluez wpa_supplicant make rsync binutils ldetect usbutils kernel-desktop-latest u-boot u-boot-tools


#For the wifi :
/sbin/urpmi.update "Nonfree Release"
/sbin/urpmi.update "Nonfree Updates"
<INSTALL_EXEC> --media "Nonfree Release,Nonfree Updates" -a --fuzzy kernel-firmware-nonfree
<INSTALL_EXEC> --media "Nonfree Release,Nonfree Updates" raspberrypi-firmware

/usr/bin/sed -i -e '/GRUB_CMDLINE_LINUX_DEFAULT/s|"[[:space:]]*$| audit=0"|' /etc/default/grub

echo \
"# Configuration file for fw_(printenv/setenv) utility.
# Up to two entries are valid, in this case the redundant
# environment sector is assumed present.
# MTD device name       Device offset   Env. size       Flash sector size
/boot/EFI/uboot.env            0x0000      0x4000" > /etc/fw_env.config

sed -e 's|preboot=.*$|preboot=|' \
    -e 's|kernel_addr_r=.*$|kernel_addr_r=0x00001000|' \
    /usr/lib/u-boot/rpi_arm64/default_env.txt \
    | mkenvimage -s $((0x4000)) -o /boot/EFI/uboot.env -

cp /usr/lib/u-boot/rpi_arm64/u-boot.bin /boot/EFI/u-boot.bin

# permanently disable access to u-boot from grub, not working and not required.
chmod -x /etc/grub.d/30_uefi-firmware
# disable osprober because it finds and embedded the BuildSystem OS into the image.
chmod -x /etc/grub.d/30_os-prober 
/usr/sbin/grub2-mkconfig -o /boot/grub2/grub.cfg
/usr/sbin/grub2-install --skip-fs-probe --target=arm64-efi --efi-directory=/boot/EFI --removable --no-nvram --force-file-id
chmod +x /etc/grub.d/30_os-prober

/usr/bin/chown :chrony -R /etc/chrony.keys /var/log/chrony
/usr/bin/chown :daemon /etc/wpa_supplicant.conf
/usr/bin/chown :tty /bin/write /bin/wall
/usr/bin/chown :lock /sbin/lockdev
/usr/bin/chown :bin /sbin/traceroute
/usr/bin/chown polkitd /etc/polkit-1/rules.d

## DO NOT EXIT THE SCRIPT. A second part is automatically added in this script during the process in order to create the default user and set root password.