Replaced rc.local modification with call to raspi-config
This commit is contained in:
Brent Gardner
parent
870649bca9
commit
c4896855a8
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@ -1,6 +1,6 @@
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#!/bin/bash
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version="v0.1.3"
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version="v0.1.2"
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CURRENT_DIR="$(pwd)"
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SCRIPTNAME="${0##*/}"
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@ -17,7 +17,7 @@ function info() {
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}
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function error() {
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echo -n "$SCRIPTNAME: ERROR occured in line $1: "
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echo -n "$SCRIPTNAME: ERROR occurred in line $1: "
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shift
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echo "$@"
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}
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@ -62,17 +62,52 @@ if [[ $repair == true ]]; then
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(( $? < 4 )) && return
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fi
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error $LINENO "Filesystem recoveries failed. Giving up..."
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exit -9
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exit 9
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}
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function set_autoexpand() {
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#Make pi expand rootfs on next boot
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mountdir=$(mktemp -d)
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partprobe "$loopback"
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mount "$loopback" "$mountdir"
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if [ ! -d "$mountdir/etc" ]; then
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info "/etc not found, autoexpand will not be enabled"
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umount "$mountdir"
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return
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fi
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cat <<EOF > "$mountdir/etc/init.d/expand-rootfs" &&
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#!/bin/sh
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### BEGIN INIT INFO
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# Provides: expand-rootfs
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# Required-Start:
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# Required-Stop:
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# Default-Start: 3
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# Default-Stop:
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# Short-Description: Expands the root filesystem to fill device size
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# Description:
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### END INIT INFO
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/usr/bin/env raspi-config --expand-rootfs
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update-rc.d expand-rootfs remove
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rm /etc/init.d/expand-rootfs
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reboot
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exit 0
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EOF
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chmod +x "$mountdir/etc/init.d/expand-rootfs"
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ln -s "../init.d/expand-rootfs" "$mountdir/etc/rc3.d/S01expand-rootfs" # Equivalent to update-rc.d expand-rootfs defaults
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umount "$mountdir"
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}
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help() {
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local help
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read -r -d '' help << EOM
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Usage: $0 [-adhrspvzZ] imagefile.img [newimagefile.img]
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-s Don't expand filesystem when image is booted the first time
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-v Be verbose
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-v Be verbose
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-r Use advanced filesystem repair option if the normal one fails
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-z Compress image after shrinking with gzip
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-Z Compress image after shrinking with xz
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@ -81,7 +116,7 @@ Usage: $0 [-adhrspvzZ] imagefile.img [newimagefile.img]
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-d Write debug messages in a debug log file
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EOM
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echo "$help"
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exit -1
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exit 1
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}
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should_skip_autoexpand=false
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@ -91,7 +126,6 @@ parallel=false
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verbose=false
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prep=false
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ziptool=""
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required_tools="$REQUIRED_TOOLS"
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while getopts ":adhprsvzZ" opt; do
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case "${opt}" in
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@ -129,20 +163,28 @@ fi
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if [[ ! -f "$img" ]]; then
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error $LINENO "$img is not a file..."
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exit -2
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exit 2
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fi
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if (( EUID != 0 )); then
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error $LINENO "You need to be running as root."
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exit -3
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exit 3
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fi
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# set locale to POSIX(English) temporarily
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# these locale settings only affect the script and its sub processes
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export LANGUAGE=POSIX
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export LC_ALL=POSIX
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export LANG=POSIX
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# check selected compression tool is supported and installed
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if [[ -n $ziptool ]]; then
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if [[ ! " ${ZIPTOOLS[@]} " =~ " $ziptool " ]]; then
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if [[ ! " ${ZIPTOOLS[@]} " =~ $ziptool ]]; then
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error $LINENO "$ziptool is an unsupported ziptool."
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exit -17
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exit 17
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else
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if [[ $parallel == true && ziptool == "gzip" ]]; then
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if [[ $parallel == true && $ziptool == "gzip" ]]; then
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REQUIRED_TOOLS="$REQUIRED_TOOLS pigz"
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else
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REQUIRED_TOOLS="$REQUIRED_TOOLS $ziptool"
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@ -155,25 +197,29 @@ for command in $REQUIRED_TOOLS; do
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command -v $command >/dev/null 2>&1
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if (( $? != 0 )); then
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error $LINENO "$command is not installed."
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exit -4
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exit 4
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fi
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done
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#Copy to new file if requested
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if [ -n "$2" ]; then
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info "Copying $1 to $2..."
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cp --reflink=auto --sparse=always "$1" "$2"
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f="$2"
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if [[ -n $ziptool && "${f##*.}" == "${ZIPEXTENSIONS[$ziptool]}" ]]; then # remove zip extension if zip requested because zip tool will complain about extension
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f="${f%.*}"
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fi
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info "Copying $1 to $f..."
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cp --reflink=auto --sparse=always "$1" "$f"
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if (( $? != 0 )); then
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error $LINENO "Could not copy file..."
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exit -5
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exit 5
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fi
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old_owner=$(stat -c %u:%g "$1")
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chown "$old_owner" "$2"
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img="$2"
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chown "$old_owner" "$f"
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img="$f"
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fi
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# cleanup at script exit
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trap cleanup ERR EXIT
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trap cleanup EXIT
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#Gather info
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info "Gathering data"
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@ -183,53 +229,34 @@ rc=$?
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if (( $rc )); then
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error $LINENO "parted failed with rc $rc"
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info "Possibly invalid image. Run 'parted $img unit B print' manually to investigate"
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exit -6
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exit 6
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fi
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partnum="$(echo "$parted_output" | tail -n 1 | cut -d ':' -f 1)"
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partstart="$(echo "$parted_output" | tail -n 1 | cut -d ':' -f 2 | tr -d 'B')"
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if [ -z "$(parted -s "$img" unit B print | grep "$partstart" | grep logical)" ]; then
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parttype="primary"
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else
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parttype="logical"
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fi
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loopback="$(losetup -f --show -o "$partstart" "$img")"
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tune2fs_output="$(tune2fs -l "$loopback")"
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rc=$?
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if (( $rc )); then
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echo "$tune2fs_output"
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error $LINENO "tune2fs failed. Unable to shrink this type of image"
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exit 7
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fi
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currentsize="$(echo "$tune2fs_output" | grep '^Block count:' | tr -d ' ' | cut -d ':' -f 2)"
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blocksize="$(echo "$tune2fs_output" | grep '^Block size:' | tr -d ' ' | cut -d ':' -f 2)"
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logVariables $LINENO beforesize parted_output partnum partstart tune2fs_output currentsize blocksize
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logVariables $LINENO beforesize parted_output partnum partstart parttype tune2fs_output currentsize blocksize
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#Check if we should make pi expand rootfs on next boot
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if [ "$should_skip_autoexpand" = false ]; then
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#Make pi expand rootfs on next boot
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mountdir=$(mktemp -d)
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mount "$loopback" "$mountdir"
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#From https://raw.githubusercontent.com/RPi-Distro/pi-gen/master/stage2/01-sys-tweaks/files/resize2fs_once
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cat <<\EOF > "$mountdir/etc/init.d/resize2fs_once"
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#!/bin/sh
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### BEGIN INIT INFO
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# Provides: resize2fs_once
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# Required-Start:
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# Required-Stop:
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# Default-Start: 3
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# Default-Stop:
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# Short-Description: Resize the root filesystem to fill partition
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# Description:
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### END INIT INFO
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. /lib/lsb/init-functions
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case "$1" in
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start)
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log_daemon_msg "Starting resize2fs_once"
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ROOT_DEV=$(findmnt / -o source -n) &&
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resize2fs $ROOT_DEV &&
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update-rc.d resize2fs_once remove &&
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rm /etc/init.d/resize2fs_once &&
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log_end_msg $?
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;;
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*)
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echo "Usage: $0 start" >&2
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exit 3
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;;
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esac
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EOF
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chmod +x "$mountdir/etc/init.d/resize2fs_once"
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ln -s "$mountdir/etc/init.d/resize2fs_once" "$mountdir/etc/rc3.d/resize2fs_once"
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umount "$mountdir"
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if [ "$parttype" == "logical" ]; then
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echo "WARNING: PiShrink does not yet support autoexpanding of this type of image"
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elif [ "$should_skip_autoexpand" = false ]; then
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set_autoexpand
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else
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echo "Skipping autoexpanding process..."
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fi
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@ -238,7 +265,7 @@ if [[ $prep == true ]]; then
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info "Syspreping: Removing logs, apt archives, dhcp leases and ssh hostkeys"
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mountdir=$(mktemp -d)
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mount "$loopback" "$mountdir"
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rm -rf "$mountdir/var/cache/apt/archives/*" "$mountdir/var/lib/dhcpcd5/*" "$mountdir/var/log/*" "$mountdir/var/tmp/*" "$mountdir/tmp/*" "$mountdir/etc/ssh/*_host_*"
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rm -rvf $mountdir/var/cache/apt/archives/* $mountdir/var/lib/dhcpcd5/* $mountdir/var/log/* $mountdir/var/tmp/* $mountdir/tmp/* $mountdir/etc/ssh/*_host_*
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umount "$mountdir"
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fi
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@ -249,13 +276,13 @@ checkFilesystem
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if ! minsize=$(resize2fs -P "$loopback"); then
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rc=$?
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error $LINENO "resize2fs failed with rc $rc"
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exit -10
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exit 10
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fi
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minsize=$(cut -d ':' -f 2 <<< "$minsize" | tr -d ' ')
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logVariables $LINENO currentsize minsize
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if [[ $currentsize -eq $minsize ]]; then
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error $LINENO "Image already shrunk to smallest size"
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exit -11
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exit 11
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fi
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#Add some free space to the end of the filesystem
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@ -279,7 +306,7 @@ if (( $rc )); then
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mv "$mountdir/etc/rc.local.bak" "$mountdir/etc/rc.local"
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umount "$mountdir"
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losetup -d "$loopback"
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exit -12
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exit 12
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fi
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sleep 1
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@ -291,14 +318,14 @@ parted -s -a minimal "$img" rm "$partnum"
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rc=$?
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if (( $rc )); then
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error $LINENO "parted failed with rc $rc"
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exit -13
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exit 13
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fi
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parted -s "$img" unit B mkpart primary "$partstart" "$newpartend"
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parted -s "$img" unit B mkpart "$parttype" "$partstart" "$newpartend"
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rc=$?
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if (( $rc )); then
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error $LINENO "parted failed with rc $rc"
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exit -14
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exit 14
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fi
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#Truncate the file
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@ -307,7 +334,7 @@ endresult=$(parted -ms "$img" unit B print free)
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rc=$?
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if (( $rc )); then
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error $LINENO "parted failed with rc $rc"
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exit -15
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exit 15
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fi
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endresult=$(tail -1 <<< "$endresult" | cut -d ':' -f 2 | tr -d 'B')
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@ -316,7 +343,7 @@ truncate -s "$endresult" "$img"
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rc=$?
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if (( $rc )); then
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error $LINENO "trunate failed with rc $rc"
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exit -16
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exit 16
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fi
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# handle compression
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@ -326,22 +353,22 @@ if [[ -n $ziptool ]]; then
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[[ $parallel == true ]] && options="${ZIP_PARALLEL_OPTIONS[$ziptool]}"
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[[ -v $envVarname ]] && options="${!envVarname}" # if environment variable defined use these options
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[[ $verbose == true ]] && options="$options -v" # add verbose flag if requested
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if [[ $parallel == true ]]; then
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parallel_tool="${ZIP_PARALLEL_TOOL[$ziptool]}"
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info "Using $parallel_tool on the shrunk image"
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if ! $parallel_tool ${options} "$img"; then
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rc=$?
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error $LINENO "$parallel_tool failed with rc $rc"
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exit -18
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exit 18
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fi
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else # sequential
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info "Using $ziptool on the shrunk image"
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if ! $ziptool ${options} $img; then
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if ! $ziptool ${options} "$img"; then
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rc=$?
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error $LINENO "$ziptool failed with rc $rc"
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exit -19
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exit 19
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fi
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fi
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img=$img.${ZIPEXTENSIONS[$ziptool]}
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