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Initial build script
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‎build.sh‎

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#!/bin/bash -e
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run_sub_stage()
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{
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log "Begin ${SUB_STAGE_DIR}"
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pushd ${SUB_STAGE_DIR} > /dev/null
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for i in {00..99}; do
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if [ -f ${i}-debconf ]; then
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log "Begin ${SUB_STAGE_DIR}/${i}-debconf"
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on_chroot sh -e - << EOF
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debconf-set-selections <<SELEOF
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`cat ${i}-debconf`
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SELEOF
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EOF
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log "End ${SUB_STAGE_DIR}/${i}-debconf"
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fi
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if [ -f ${i}-packages-nr ]; then
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log "Begin ${SUB_STAGE_DIR}/${i}-packages-nr"
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PACKAGES=`cat $i-packages-nr | tr '\n' ' '`
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if [ -n "$PACKAGES" ]; then
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on_chroot sh -e - << EOF
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apt-get install --no-install-recommends -y $PACKAGES
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EOF
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fi
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log "End ${SUB_STAGE_DIR}/${i}-packages-nr"
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fi
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if [ -f ${i}-packages ]; then
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log "Begin ${SUB_STAGE_DIR}/${i}-packages"
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PACKAGES=`cat $i-packages | tr '\n' ' '`
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if [ -n "$PACKAGES" ]; then
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on_chroot sh -e - << EOF
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apt-get install -y $PACKAGES
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EOF
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fi
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log "End ${SUB_STAGE_DIR}/${i}-packages"
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fi
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if [ -d ${i}-patches ]; then
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log "Begin ${SUB_STAGE_DIR}/${i}-patches"
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pushd ${STAGE_WORK_DIR} > /dev/null
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if [ "${CLEAN}" = "1" ]; then
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rm -rf .pc
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rm -rf *-pc
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fi
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QUILT_PATCHES=${SUB_STAGE_DIR}/${i}-patches
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mkdir -p ${i}-pc
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ln -sf .pc ${i}-pc
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if [ -e ${SUB_STAGE_DIR}/${i}-patches/EDIT ]; then
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echo "Dropping into bash to edit patches..."
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bash
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fi
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RC=0
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quilt push -a || RC=$?
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case "$RC" in
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0|2)
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;;
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*)
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false
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;;
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esac
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popd > /dev/null
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log "End ${SUB_STAGE_DIR}/${i}-patches"
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fi
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if [ -x ${i}-run.sh ]; then
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log "Begin ${SUB_STAGE_DIR}/${i}-run.sh"
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./${i}-run.sh
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log "End ${SUB_STAGE_DIR}/${i}-run.sh"
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fi
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if [ -f ${i}-run-chroot ]; then
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log "Begin ${SUB_STAGE_DIR}/${i}-run-chroot"
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on_chroot sh -e - < ${i}-run-chroot
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log "End ${SUB_STAGE_DIR}/${i}-run-chroot"
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fi
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done
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popd > /dev/null
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log "End ${SUB_STAGE_DIR}"
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}
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run_stage(){
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log "Begin ${STAGE_DIR}"
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pushd ${STAGE_DIR} > /dev/null
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unmount ${WORK_DIR}/${STAGE}
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STAGE_WORK_DIR=${WORK_DIR}/${STAGE}
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ROOTFS_DIR=${STAGE_WORK_DIR}/rootfs
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if [ ! -f SKIP ]; then
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if [ "${CLEAN}" = "1" ]; then
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if [ -d ${ROOTFS_DIR} ]; then
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rm -rf ${ROOTFS_DIR}
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fi
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fi
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if [ -x prerun.sh ]; then
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log "Begin ${STAGE_DIR}/prerun.sh"
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./prerun.sh
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log "End ${STAGE_DIR}/prerun.sh"
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fi
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for SUB_STAGE_DIR in ${STAGE_DIR}/*; do
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if [ -d ${SUB_STAGE_DIR} ]; then
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run_sub_stage
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fi
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done
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fi
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unmount ${WORK_DIR}/${STAGE}
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PREV_STAGE=${STAGE}
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PREV_STAGE_DIR=${STAGE_DIR}
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PREV_ROOTFS_DIR=${ROOTFS_DIR}
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popd > /dev/null
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log "End ${STAGE_DIR}"
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}
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if [ "$(id -u)" != "0" ]; then
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echo "Please run as root" 1>&2
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exit 1
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fi
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if [ -f config ]; then
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source config
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fi
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if [ -z "${IMG_NAME}" ]; then
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echo "IMG_NAME not set" 1>&2
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exit 1
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fi
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export IMG_DATE=${IMG_DATE:-"$(date -u +%Y-%m-%d)"}
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export BASE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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export SCRIPT_DIR="${BASE_DIR}/scripts"
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export WORK_DIR="${BASE_DIR}/work/${IMG_DATE}-${IMG_NAME}"
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export LOG_FILE="${WORK_DIR}/build.log"
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export CLEAN
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export IMG_NAME
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export APT_PROXY
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export STAGE
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export PREV_STAGE
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export STAGE_DIR
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export PREV_STAGE_DIR
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export ROOTFS_DIR
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export PREV_ROOTFS_DIR
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export QUILT_PATCHES
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export QUILT_NO_DIFF_INDEX=1
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export QUILT_NO_DIFF_TIMESTAMPS=1
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export QUILT_REFRESH_ARGS="-p ab"
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source ${SCRIPT_DIR}/common
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export -f log
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export -f bootstrap
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export -f unmount
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export -f on_chroot
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export -f copy_previous
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export -f update_issue
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mkdir -p ${WORK_DIR}
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log "Begin ${BASE_DIR}"
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for STAGE_DIR in ${BASE_DIR}/stage*; do
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STAGE=$(basename ${STAGE_DIR})
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run_stage
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done
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log "End ${BASE_DIR}"

‎scripts/common‎

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log (){
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date +"[%T] $@" | tee -a ${LOG_FILE}
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}
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bootstrap(){
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ARCH=$(dpkg --print-architecture)
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export http_proxy=${APT_PROXY}
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if [ "$ARCH" != "armhf" ]; then
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BOOTSTRAP_CMD=qemu-debootstrap
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else
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BOOTSTRAP_CMD=debootstrap
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fi
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${BOOTSTRAP_CMD} --components=main,contrib,non-free \
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--arch armhf\
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--no-check-gpg \
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$1 $2 $3
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}
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copy_previous(){
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if [ ! -d ${PREV_ROOTFS_DIR} ]; then
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echo "Previous stage rootfs not found"
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false
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fi
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mkdir -p ${ROOTFS_DIR}
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rsync -aHAX ${PREV_ROOTFS_DIR}/ ${ROOTFS_DIR}/
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}
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unmount(){
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if [ -z "$1" ]; then
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DIR=$PWD
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else
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DIR=$1
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fi
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while mount | grep -q $DIR; do
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LOCS=`mount | grep $DIR | cut -f 3 -d ' ' | sort -r`
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for loc in $LOCS; do
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sudo umount $loc
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done
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done
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}
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on_chroot() {
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if ! mount | grep -q `realpath ${ROOTFS_DIR}/proc`; then
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mount -t proc proc ${ROOTFS_DIR}/proc
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fi
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if ! mount | grep -q `realpath ${ROOTFS_DIR}/dev`; then
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mount --bind /dev ${ROOTFS_DIR}/dev
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fi
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if ! mount | grep -q `realpath ${ROOTFS_DIR}/sys`; then
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mount --bind /sys ${ROOTFS_DIR}/sys
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fi
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chroot ${ROOTFS_DIR}/ "$@"
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}
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update_issue() {
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echo -e "Raspberry Pi reference ${DATE}\nGenerated using Pi-gen, https://github.com/RPi-Distro/Pi-gen, ${1}" > ${ROOTFS_DIR}/etc/rpi-issue
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}

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