#!/bin/bash
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source ../scripts/setup_env.sh
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JSON_CONF=rootfs.json
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DEF_USER=`jq -r ".SYS_CONF.DEF_USER" $JSON_CONF`
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DEF_PASSWD=`jq -r ".SYS_CONF.DEF_PASSWD" $JSON_CONF`
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DEF_HOSTNAME=${BOARD}
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TARBALL_DIR=${PRJ_PATH}/../tarballs/
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set -e
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trap 'exit_handler' EXIT
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function exit_handler()
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{
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rm -f ${ROOTFS_DIR}/usr/bin/qemu-arm-static
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umount ${ROOTFS_DIR}/{sys,proc,dev/pts,dev} 2>/dev/null || true
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}
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function do_debian_fetch()
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{
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if [ $SYSTEM != debian -o -d $ROOTFS_DIR ] ; then
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return;
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fi
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debian_src=$1
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ARCH=$2
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# debootstrap fetch debian rootfs
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export DEBIAN_FRONTEND=noninteractive
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export DEBCONF_NONINTERACTIVE_SEEN=true
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export LC_ALL=C
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export LANGUAGE=C
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export LANG=C
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pr_warn "debootstrap fetch start"
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pr_info "debootstrap --arch=${ARCH} --foreign ${DISTRO} ${ROOTFS_DIR} ${debian_src}"
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debootstrap --arch=${ARCH} --foreign ${DISTRO} ${ROOTFS_DIR} ${debian_src}
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chroot ${ROOTFS_DIR} debootstrap/debootstrap --second-stage
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pr_warn "debootstrap fetch done"
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chroot ${ROOTFS_DIR} dpkg --configure -a
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cd ${ROOTFS_DIR}
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tar -cjf ../${ROOTFS_DIR}.orig.tar.bz2 *
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cd -
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}
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# Install extra apps defined in configure file
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function do_debian_apt()
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{
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if [ $SYSTEM != debian ] ; then
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return;
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fi
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apt_install=$(eval echo `jq -r .SYS_DEBIAN.INSTALL_APT $JSON_CONF` | tr 'A-Z' 'a-z')
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if [ $apt_install != yes ] ; then
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pr_warn "skip debootstrap apt install extra apps"
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return;
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fi
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pr_warn "debootstrap apt install extra apps"
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extra_apps=`eval jq -r .SYS_DEBIAN.APT_APPS[] $JSON_CONF`
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cp -f /usr/bin/qemu-arm-static ${ROOTFS_DIR}/usr/bin/
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mount -o bind /proc ${ROOTFS_DIR}/proc
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mount -o bind /dev ${ROOTFS_DIR}/dev
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mount -o bind /dev/pts ${ROOTFS_DIR}/dev/pts
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mount -o bind /sys ${ROOTFS_DIR}/sys
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chroot ${ROOTFS_DIR} apt update
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chroot ${ROOTFS_DIR} apt install -y ${extra_apps}
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chroot ${ROOTFS_DIR} apt autoremove
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umount ${ROOTFS_DIR}/{sys,proc,dev/pts,dev}
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pr_warn "debootstrap apt install done"
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}
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function do_debian_conf()
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{
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if [ $SYSTEM != debian ] ; then
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return;
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fi
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pr_warn "update debian system configuration"
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# add default user account
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set +e
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grep "$DEF_USER" ${ROOTFS_DIR}/etc/passwd > /dev/null 2>&1
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if [ $? != 0 ] ; then
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pr_info "setup default user account"
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cp -f /usr/bin/qemu-arm-static ${ROOTFS_DIR}/usr/bin/
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chroot ${ROOTFS_DIR} chmod 4755 /usr/bin/sudo
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chroot ${ROOTFS_DIR} sh -c "useradd -m -s /bin/bash ${DEF_USER}"
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chroot ${ROOTFS_DIR} sh -c "echo ${DEF_USER}:${DEF_PASSWD} | chpasswd"
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chroot ${ROOTFS_DIR} sh -c "usermod -aG video,audio,sudo ${DEF_USER}"
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fi
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set -e
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# modify root password
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chroot ${ROOTFS_DIR} sh -c "echo root:${DEF_PASSWD} | chpasswd"
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# update PATH environment in /etc/profile
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sed -i 's|PATH=.*|PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"|g' ${ROOTFS_DIR}/etc/profile
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# update sudo without passwd
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sed -i "s|^%sudo.*|%sudo ALL=(ALL:ALL) NOPASSWD:ALL|g" ${ROOTFS_DIR}/etc/sudoers
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# enable ping command for all user
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chmod 4755 ${ROOTFS_DIR}/usr/bin/ping*
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# enable root login on serial port
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MOD_FILE=${ROOTFS_DIR}/etc/securetty
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set +e
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grep ttyLP1 ${MOD_FILE} > /dev/null 2>&1
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if [ $? != 0 ] ; then
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echo "" >> ${MOD_FILE}
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echo "# i.MX8ULP serial console" >> ${MOD_FILE}
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echo "ttyLP1" >> ${MOD_FILE}
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echo "ttyLP2" >> ${MOD_FILE}
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echo "ttyLP3" >> ${MOD_FILE}
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fi
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set -e
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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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pr_warn "rootfs tree for $SYSTEM($DISTRO) fetch already"
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return;
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fi
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pr_warn "start fetch rootfs tree for $SYSTEM($DISTRO) "
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if [ -f $ROOTFS_DIR.tar.bz2 ] ; then
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do_unpack $TARBALL_DIR/$ROOTFS_DIR.tar.bz2 $ROOTFS_DIR
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return;
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fi
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if [ $SYSTEM == "yocto" ] ; then
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mkdir -p $ROOTFS_DIR
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do_fetch_json $JSON_CONF SYS_YOCTO $ROOTFS_DIR
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elif [ $SYSTEM == "buildroot" ] ; then
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mkdir -p $ROOTFS_DIR
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do_fetch_json $JSON_CONF SYS_BUILDROOT $ROOTFS_DIR
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elif [ $SYSTEM == "debian" ] ; then
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protocal=`jq -r ".SYS_DEBIAN.PROTOCAL" $JSON_CONF`
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if [ $protocal != "debootstrap" ] ; then
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mkdir -p $ROOTFS_DIR
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do_fetch_json $JSON_CONF SYS_DEBIAN $ROOTFS_DIR
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else
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debian_src=`jq -r ".SYS_DEBIAN.URL" $JSON_CONF`
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arch=`jq -r ".SYS_DEBIAN.ARCH" $JSON_CONF`
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do_debian_fetch $debian_src $arch
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fi
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fi
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rm -f *.tar.*
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}
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function do_install()
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{
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# Remove lib/modules first
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rm -rf $ROOTFS_DIR/lib/modules/*
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# apt install extra packet for debian rootfs
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if [ $SYSTEM == "debian" ] ; then
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do_debian_apt
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do_debian_conf
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do_install_json $JSON_CONF SYS_DEBIAN.INSTALL_FILES
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elif [ $SYSTEM == "yocto" ] ; then
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do_install_json $JSON_CONF SYS_YOCTO.INSTALL_FILES
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elif [ $SYSTEM == "buildroot" ] ; then
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do_install_json $JSON_CONF SYS_BUILDROOT.INSTALL_FILES
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fi
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}
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function do_config()
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{
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pr_warn "start configure for $SYSTEM($DISTRO) rootfs"
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set +e
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# update hostnmae and issue
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echo "Welcome to ${BOARD} Board GNU/Linux ${SYSTEM}(${DISTRO}) system, default password '$DEF_PASSWD'." > ${ROOTFS_DIR}/etc/issue
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echo $DEF_HOSTNAME > ${ROOTFS_DIR}/etc/hostname
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grep "${DEF_HOSTNAME}" ${ROOTFS_DIR}/etc/hosts > /dev/null 2>&1
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if [ $? != 0 ] ; then
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echo "127.0.0.1 ${DEF_HOSTNAME}" >> ${ROOTFS_DIR}/etc/hosts
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fi
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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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# update profile
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sed -i "s|PS1='# '|PS1='\\\u@\\\h:\\\w# '|g" ${ROOTFS_DIR}/etc/profile
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sed -i "s|PS1='$ '|PS1='\\\u@\\\h:\\\w$ '|g" ${ROOTFS_DIR}/etc/profile
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# add ls alias for display with color
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grep "^alias ls=" ${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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if [ -f ${ROOTFS_DIR}/etc/ssh/sshd_config ] ; then
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sed -i "s|^#PermitRootLogin.*|PermitRootLogin yes|g" ${ROOTFS_DIR}/etc/ssh/sshd_config
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sed -i "s|^#PasswordAuthentication.*|PasswordAuthentication yes|g" ${ROOTFS_DIR}/etc/ssh/sshd_config
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fi
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set -e
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pr_warn "configure for $SYSTEM($DISTRO) rootfs done"
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}
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function do_pack()
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{
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pr_warn "start generate $SYSTEM($DISTRO) rootfs packet"
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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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pr_warn "generate $SYSTEM($DISTRO) rootfs packet done"
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}
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function do_distclean()
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{
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pr_warn "clean rootfs source tree"
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rm -rf $ROOTFS_DIR* rootfs_*
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exit;
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}
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function do_rootfs()
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{
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do_fetch
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do_install
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do_config
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}
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function do_root()
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{
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echo ""
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if [[ $1 == "yes" ]] && [ `id -u` != 0 ] ; then
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echo "ERROR: This action must run as root!"
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echo ""
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exit;
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elif [[ $1 != "yes" ]] && [ `id -u` == 0 ] ; then
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echo "ERROR: This action cannot run as root!"
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echo ""
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exit;
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fi
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}
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function do_usage()
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{
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echo ""
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echo "Usage:"
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echo " $0 [-b] [p] [-c] [-h]"
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echo " -b: download and build $PRJ_NAME"
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echo " -p: packet the rootfs tree source"
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echo " -c: clean all the source code"
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echo " -h: show this help message"
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echo ""
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echo " WARNNING: This shell script must run as sudo"
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echo ""
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exit;
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}
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while getopts "bpch" OPTNAME
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do
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case "${OPTNAME}" in
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"b")
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break;
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;;
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"p")
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do_pack
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;;
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"c")
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do_root "yes"
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do_distclean
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;;
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"h")
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do_usage
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;;
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esac
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done
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do_root "yes"
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do_rootfs
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