Reorganization and scripts fixing
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244
utilities/usb-boot/mbr2gpt
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244
utilities/usb-boot/mbr2gpt
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#!/bin/bash
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trap '{ stty sane; echo ""; errexit "Aborted"; }' SIGINT SIGTERM
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MNTPATH="/tmp/mbr2gpt-mnt"
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errexit()
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{
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echo ""
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echo "$1"
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echo ""
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if [ "${MNTED}" = "TRUE" ]; then
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umount "${MNTPATH}/" &> /dev/null
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fi
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rm -rf "${MNTPATH}/" &> /dev/null
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echo "Usage: $0 <device>"
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echo ""
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exit 1
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}
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mntpart()
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{
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if [ ! -d "${MNTPATH}/" ]; then
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mkdir "${MNTPATH}/"
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if [ $? -ne 0 ]; then
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errexit "Unable to make partition mount point"
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fi
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fi
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mount "$1" "${MNTPATH}/"
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if [ $? -ne 0 ]; then
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errexit "Unable to mount $2 partition"
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fi
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MNTED=TRUE
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}
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umntpart()
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{
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umount "${MNTPATH}/"
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if [ $? -ne 0 ]; then
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errexit "Unable to unmount partition"
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fi
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MNTED=FALSE
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rm -r "${MNTPATH}/"
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}
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MNTED=FALSE
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if [ $(id -u) -ne 0 ]; then
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errexit "$0 must be run as root user"
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fi
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PGMNAME="$(basename $0)"
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for PID in $(pidof -x -o %PPID "${PGMNAME}"); do
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if [ ${PID} -ne $$ ]; then
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errexit "${PGMNAME} is already running"
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fi
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done
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gdisk -l /dev/null &> /dev/null
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if [ $? -eq 127 ]; then
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echo ""
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echo "gdisk not installed"
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echo ""
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echo -n "Ok to install gdisk (y/n)? "
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while read -r -n 1 -s answer; do
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if [[ "${answer}" = [yYnN] ]]; then
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echo "${answer}"
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if [[ "${answer}" = [yY] ]]; then
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break
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else
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errexit "Aborted"
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fi
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fi
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done
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echo ""
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echo "Installing gdisk"
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echo ""
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apt-get update
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apt-get install gdisk
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fi
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DEVICE="$1"
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if [ "${DEVICE}" = "" ]; then
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errexit "No device specified"
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fi
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if [[ (! "${DEVICE}" =~ ^/dev/sd[a-z]$ && ! "${DEVICE}" =~ ^/dev/nvme0n1$ && ! "${DEVICE}" =~ ^/dev/mmcblk0$) || ! -b "${DEVICE}" ]]; then
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errexit "Invalid DEVICE: ${DEVICE}"
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fi
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DEVICE_P="${DEVICE}"
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if [[ "${DEVICE_P}" = "/dev/nvme0n1" || "${DEVICE}" = "/dev/mmcblk0" ]];then
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DEVICE_P+='p'
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fi
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if [ $(mount | grep -c "^${DEVICE}") -ne 0 ]; then
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errexit "${DEVICE} is in use (mounted)"
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fi
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PTTYPE="$(blkid ${DEVICE} | sed -n 's|^.*PTTYPE="\(\S\+\)".*|\1|p')"
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PTTYPE="$(tr [a-z] [A-Z] <<< "${PTTYPE}")"
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if [ "${PTTYPE}" = "DOS" ]; then
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PTTYPE="MBR"
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fi
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if [[ "${PTTYPE}" != "MBR" && "${PTTYPE}" != "GPT" ]]; then
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errexit "Unsupported partition table type"
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fi
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echo ""
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echo "Partition table type is ${PTTYPE}"
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if [ "${PTTYPE}" = "MBR" ]; then
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echo ""
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echo -n "Ok to convert ${DEVICE} to GPT (y/n)? "
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while read -r -n 1 -s answer; do
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if [[ "${answer}" = [yYnN] ]]; then
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echo "${answer}"
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if [[ "${answer}" = [yY] ]]; then
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break
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else
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errexit "Aborted"
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fi
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fi
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done
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sgdisk -z "${DEVICE}" &> /dev/null
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fi
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INFO="$(gdisk -l ${DEVICE} 2> /dev/null)"
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LAST=$(sed -n 's|^.*last usable sector is \(\S\+\).*|\1|p' <<< "${INFO}")
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START=$(sed -n 's|^\s\+2\s\+\(\S\+\).*|\1|p' <<< "${INFO}")
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END=$(sed -n 's|^\s\+2\s\+\S\+\s\+\(\S\+\).*|\1|p' <<< "${INFO}")
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SHRINK=FALSE
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EXPAND=FALSE
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SDBOOT=FALSE
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if [ $(grep -c "Warning! Secondary partition table overlaps the last partition" <<< "${INFO}") -ne 0 ]; then
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echo ""
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echo "ROOT partition overlaps the Secondary partition table area"
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echo ""
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echo -n "Ok to resize ROOT partition (y/n)? "
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while read -r -n 1 -s answer; do
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if [[ "${answer}" = [yYnN] ]]; then
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echo "${answer}"
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if [[ "${answer}" = [yY] ]]; then
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break
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else
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errexit "Aborted"
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fi
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fi
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done
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SHRINK=TRUE
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elif [ ${END} -lt ${LAST} ]; then
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echo ""
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echo -n "Expand ROOT partition to use all available space (y/n)? "
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while read -r -n 1 -s answer; do
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if [[ "${answer}" = [yYnN] ]]; then
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echo "${answer}"
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if [[ "${answer}" = [yY] ]]; then
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EXPAND=TRUE
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fi
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break
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fi
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done
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fi
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if [ -b /dev/mmcblk0 ]; then
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echo ""
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echo -n "Set SD card to boot ${DEVICE} (y/n)? "
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while read -r -n 1 -s answer; do
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if [[ "${answer}" = [yYnN] ]]; then
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echo "${answer}"
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if [[ "${answer}" = [yY] ]]; then
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SDBOOT=TRUE
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fi
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break
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fi
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done
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fi
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if [[ "${PTTYPE}" = "MBR" || "${SHRINK}" = "TRUE" || "${EXPAND}" = "TRUE" || "${SDBOOT}" = "TRUE" ]]; then
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echo ""
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echo -n "Ok to process ${DEVICE} (y/n)? "
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while read -r -n 1 -s answer; do
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if [[ "${answer}" = [yYnN] ]]; then
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echo "${answer}"
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if [[ "${answer}" = [yY] ]]; then
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break
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else
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errexit "Aborted"
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fi
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fi
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done
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if [ "${SHRINK}" = "TRUE" ]; then
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echo ""
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resize2fs -f -M "${DEVICE_P}2"
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fi
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if [[ "${SHRINK}" = "TRUE" || "${EXPAND}" = "TRUE" ]]; then
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gdisk "${DEVICE}" <<EOF &> /dev/null
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d
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2
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n
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2
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${START}
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w
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y
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EOF
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echo ""
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resize2fs -f "${DEVICE_P}2"
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fi
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gdisk "${DEVICE}" <<EOF &> /dev/null
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r
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h
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1
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n
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0c
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n
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n
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w
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y
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EOF
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PARTUUID_1="$(blkid ${DEVICE_P}1 | sed -n 's|^.*PARTUUID="\(\S\+\)".*|\1|p')"
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PARTUUID_2="$(blkid ${DEVICE_P}2 | sed -n 's|^.*PARTUUID="\(\S\+\)".*|\1|p')"
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mntpart "${DEVICE_P}1" "BOOT"
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sed -i "/^[[:space:]]*#/!s|^\(.*root=\)\S\+\(\s\+.*\)$|\1PARTUUID=${PARTUUID_2}\2|" "${MNTPATH}/cmdline.txt"
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sed -i '/^[[:space:]]*#/!s| init=/usr/lib/raspi-config/init_resize\.sh||' "${MNTPATH}/cmdline.txt"
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umntpart
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mntpart "${DEVICE_P}2" "ROOT"
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sed -i "/^[[:space:]]*#/!s|^\S\+\(\s\+/boot\S*\s\+vfat\s\+.*\)$|PARTUUID=${PARTUUID_1}\1|" "${MNTPATH}/etc/fstab"
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sed -i "/^[[:space:]]*#/!s|^\S\+\(\s\+/\s\+.*\)$|PARTUUID=${PARTUUID_2}\1|" "${MNTPATH}/etc/fstab"
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sed -i '/resize-root-fs/d' "${MNTPATH}/etc/rc.local" &> /dev/null
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rm "${MNTPATH}/etc/resize-root-fs" &> /dev/null
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if [ -f "${MNTPATH}/usr/lib/raspberrypi-sys-mods/firstboot" ]; then
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cp "${MNTPATH}/usr/lib/raspberrypi-sys-mods/firstboot" "${MNTPATH}/usr/lib/raspberrypi-sys-mods/first-boot"
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sed -i 's|firstboot|first-boot|g' "${MNTPATH}/usr/lib/raspberrypi-sys-mods/first-boot"
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sed -i 's|^\(\s*whiptail --infobox \"Resizing root filesystem.*\)$| return 0\n\n\1|' "${MNTPATH}/usr/lib/raspberrypi-sys-mods/first-boot" &> /dev/null
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umntpart
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mntpart "${DEVICE_P}1" "BOOT"
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sed -i '/^[[:space:]]*#/!s| init=/usr/lib/raspberrypi-sys-mods/firstboot| init=/usr/lib/raspberrypi-sys-mods/first-boot|' "${MNTPATH}/cmdline.txt"
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fi
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umntpart
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if [ "${SDBOOT}" = "TRUE" ]; then
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mntpart "/dev/mmcblk0p1" "BOOT"
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sed -i "/^[[:space:]]*#/!s|^\(.*root=\)\S\+\(\s\+.*\)$|\1PARTUUID=${PARTUUID_2}\2|" "${MNTPATH}/cmdline.txt"
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umntpart
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mntpart "${DEVICE_P}2" "ROOT"
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sed -i "/^[[:space:]]*#/!s|^\S\+\(\s\+/boot\S*\s\+vfat\s\+.*\)$|/dev/mmcblk0p1\1|" "${MNTPATH}/etc/fstab"
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umntpart
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fi
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if [[ "${SHRINK}" = "FALSE" && "${EXPAND}" = "FALSE" ]]; then
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echo ""
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fi
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else
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echo ""
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echo "Nothing to do!"
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echo ""
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fi
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