#!/bin/bash
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PRJ_PATH=`pwd`
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BOARD=imx6ull
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TAR_PATH=/home/guowenxue/imx6ull/bsp/tarball
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# rootfs should be buildroot or stretch/buster/bullseye for debian system
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ROOTFS=buildroot
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ROOTFS_DIR=rootfs_${ROOTFS}
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ARCH=armhf
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# rootfs configuration
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DEF_PASSWD=123456
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DEF_HOSTNAME=${BOARD}
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APT_UPDATE=0
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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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if [ `id -u` != 0 ] ; then
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echo "ERRROR: This shell script must excuted as root privilege."
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exit 0;
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fi
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set -u
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set -e
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trap 'ctrlC_handler' INT
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function ctrlC_handler()
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{
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echo "Ctrl+C is captured, do some clean work"
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rm -f ${ROOTFS_DIR}/usr/bin/qemu-arm-static
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}
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STAGE=0
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function msg_banner()
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{
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STAGE=`expr $STAGE + 1`
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echo ""
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echo "+---------------------------------------------+"
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printf " Stage $STAGE: $1\n"
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echo "+---------------------------------------------+"
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echo ""
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}
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function do_systools()
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{
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msg_banner " install system tools"
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debootstrap --version > /dev/null 2>&1
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if [ $? == 0 ] ; then
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echo "system tools already installed, skip it"
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return ;
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fi
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apt install binfmt-support qemu qemu-user-static debootstrap debian-archive-keyring
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}
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function do_fetch()
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{
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if [ ! -d ${ROOTFS_DIR} ] ; then
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if [ -s ${TAR_PATH}/${ROOTFS_DIR}.tar.bz2 ] ; then
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msg_banner " decompress ${ROOTFS_DIR}.tar.bz2 "
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mkdir -p ${ROOTFS_DIR}
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tar -xjf ${TAR_PATH}/${ROOTFS_DIR}.tar.bz2 -C ${ROOTFS_DIR}
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APT_UPDATE=1
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else
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msg_banner " debootstrap fetch "
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debootstrap --arch=${ARCH} --foreign ${ROOTFS} ${ROOTFS_DIR} http://ftp.cn.debian.org/debian/
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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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APT_UPDATE=1
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fi
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else
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msg_banner "debain rootfs already fetch, skip it"
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fi
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if [ $APT_UPDATE == 0 ] ; then
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return ;
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fi
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msg_banner " debootstrap config "
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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} dpkg --configure -a
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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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msg_banner " debootstrap apt install "
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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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}
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function do_modify()
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{
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msg_banner " modify rootfs environment"
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# update hostnmae and issue
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echo $DEF_HOSTNAME > ${ROOTFS_DIR}/etc/hostname
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echo "Debian GNU/Linux $ROOTFS \n \l, default password '$DEF_PASSWD'." > ${ROOTFS_DIR}/etc/issue
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# update dns server
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echo "nameserver 114.114.114.114" > ${ROOTFS_DIR}/etc/resolv.conf
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echo "nameserver 223.5.5.5" >> ${ROOTFS_DIR}/etc/resolv.conf
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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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# permit root ssh login
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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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}
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function do_pack()
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{
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if [ -f ${ROOTFS_DIR}.tar.bz2 ] ; then
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msg_banner " rootfs already generate, skip it"
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return ;
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else
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msg_banner " generate rootfs packet "
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fi
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cd ${ROOTFS_DIR}
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tar -cjf ../${ROOTFS_DIR}.tar.bz2 *
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cd ${PRJ_PATH}
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}
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if [ $ROOTFS == buildroot ] ;then
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echo "INFO: buildroot no need build."
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exit 0;
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fi
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do_systools
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do_fetch
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set +e
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do_modify
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do_pack
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