#!/bin/bash
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# This shell script used to fetch debian root file system
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# this project absolute path
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PRJ_PATH=$(cd $(dirname "${BASH_SOURCE[0]}") && pwd)
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# the target board name and ARCH(armel/armhf/arm64)
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BOARD=igkboard
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ARCH=armhf
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ARCH=arm64
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# Debian 11 (bullseye)
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CODENAME=bullseye
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VERSION=11
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# Debian 12 (bookworm)
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CODENAME=bookworm
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VERSION=12
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# rootfs directory name
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ROOTFS_DIR=rootfs-debian-$CODENAME
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# rootfs configuration
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DEF_PASSWD=12345
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# shell script will exit once get command error
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set -e
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#+-------------------------+
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#| Shell script functions |
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#+-------------------------+
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function pr_error() {
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echo -e "\033[40;31m $1 \033[0m"
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}
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function pr_warn() {
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echo -e "\033[40;33m $1 \033[0m"
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}
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function pr_info() {
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echo -e "\033[40;32m $1 \033[0m"
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}
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# Debian 12 depends on the new keyring
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# https://packages.debian.org/sid/all/debian-archive-keyring/download
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function update_keyring()
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{
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debname=debian-archive-keyring
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debversion=2023.3
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set +e
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dpkg -l $debname > /dev/null 2>&1
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if [ $? == 0 ] ; then
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dpkg -s debian-archive-keyring | grep Version: | grep $debversion > /dev/null 2>&1
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if [ $? != 0 ] ; then
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pr_info "updating $debname"
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apt purge -y $debname
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else
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pr_info "$debname is latest"
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return;
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fi
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fi
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set -e
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pr_info "install $debname now"
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wget http://ftp.us.debian.org/debian/pool/main/d/$debname/${debname}_${debversion}_all.deb > /dev/null
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dpkg -i ${debname}_${debversion}_all.deb
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rm -f ${debname}_${debversion}_all.deb
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}
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function do_install()
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{
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pr_warn "\ninstall system tools"
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update_keyring
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debootstrap --version > /dev/null 2>&1
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if [ $? == 0 ] ; then
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pr_info "system tools installed already"
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return ;
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fi
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apt install binfmt-support qemu qemu-user-static debootstrap
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}
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function do_fetch()
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{
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pr_warn "\ndebootstrap fetch"
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if [ -f ${ROOTFS_DIR}/bin/bash ] ; then
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pr_info "debain rootfs fetched already"
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return ;
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fi
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debootstrap --arch=${ARCH} --foreign ${CODENAME} ${ROOTFS_DIR} http://ftp.debian.org/debian/
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cp -f /usr/bin/qemu-arm-static ${ROOTFS_DIR}/usr/bin/
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DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true LC_ALL=C LANGUAGE=C LANG=C chroot ${ROOTFS_DIR} debootstrap/debootstrap --second-stage
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DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true LC_ALL=C LANGUAGE=C LANG=C chroot ${ROOTFS_DIR} dpkg --configure -a
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rm -f ${ROOTFS_DIR}/usr/bin/qemu-arm-static
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}
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function modify_rootfs()
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{
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pr_warn "\nmodify rootfs environment"
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# update hostnmae and issue
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echo $BOARD > ${ROOTFS_DIR}/etc/hostname
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echo "Debian GNU/Linux $VERSION \n \l, default password '$DEF_PASSWD'" > ${ROOTFS_DIR}/etc/issue
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# update dns server
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echo "nameserver 223.5.5.5" > ${ROOTFS_DIR}/etc/resolv.conf
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echo "nameserver 114.114.114.114" >> ${ROOTFS_DIR}/etc/resolv.conf
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set +e
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# add ls alias for display with color
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grep "color=auto" ${ROOTFS_DIR}/etc/profile > /dev/null 2>&1
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if [ $? != 0 ] ; then
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echo "alias ls='ls --color=auto'" >> ${ROOTFS_DIR}/etc/profile
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fi
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grep "^PermitRootLogin" ${ROOTFS_DIR}/etc/ssh/sshd_config > /dev/null 2>&1
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if [ $? != 0 ] ; then
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echo "PermitRootLogin yes" >> ${ROOTFS_DIR}/etc/ssh/sshd_config
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fi
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set -e
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}
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function do_conf()
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{
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EXTRA_APPS="vim net-tools network-manager tree file parted locales lsb-release tzdata wireless-tools openssh-server"
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pr_warn "\ndebootstrap configure"
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cp -f /usr/bin/qemu-arm-static ${ROOTFS_DIR}/usr/bin/
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DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true LC_ALL=C LANGUAGE=C LANG=C chroot ${ROOTFS_DIR} apt update
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DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true LC_ALL=C LANGUAGE=C LANG=C chroot ${ROOTFS_DIR} apt install -y ${EXTRA_APPS}
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DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true LC_ALL=C LANGUAGE=C LANG=C chroot ${ROOTFS_DIR} sh -c "echo root:${DEF_PASSWD} | chpasswd"
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rm -f ${ROOTFS_DIR}/usr/bin/qemu-arm-static
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modify_rootfs
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}
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function do_pack()
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{
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pr_warn "\npackage $ROOTFS_DIR"
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cd $PRJ_PATH/$ROOTFS_DIR
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tar -cJf ../$ROOTFS_DIR.tar.xz *
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}
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#+-------------------------+
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#| Shell script body start |
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#+-------------------------+
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if [ `id -u` != 0 ] ; then
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pr_error "ERRROR: This shell script must excuted as root privilege."
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exit 0;
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fi
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do_install
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do_fetch
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do_conf
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do_pack
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