79 lines
1.4 KiB
Bash
79 lines
1.4 KiB
Bash
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#!/bin/sh
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#
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# Copyright (C) 2015 Curt Brune <curt@cumulusnetworks.com>
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#
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# SPDX-License-Identifier: GPL-2.0
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#
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#
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# Shell archive template
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#
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# Strings of the form %%VAR%% are replaced during construction.
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#
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echo -n "Verifying image checksum ..."
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sha1=$(sed -e '1,/^exit_marker$/d' "$0" | sha1sum | awk '{ print $1 }')
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payload_sha1=%%IMAGE_SHA1%%
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if [ "$sha1" != "$payload_sha1" ] ; then
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echo
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echo "ERROR: Unable to verify archive checksum"
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echo "Expected: $payload_sha1"
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echo "Found : $sha1"
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exit 1
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fi
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echo " OK."
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tmp_dir=
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clean_up() {
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if [ "$(id -u)" = "0" ] ; then
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umount $tmp_dir > /dev/null 2>&1
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fi
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rm -rf $tmp_dir
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exit $1
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}
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# Untar and launch install script in a tmpfs
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cur_wd=$(pwd)
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archive_path=$(realpath "$0")
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tmp_dir=$(mktemp -d)
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if [ "$(id -u)" = "0" ] ; then
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mount -t tmpfs tmpfs-installer $tmp_dir || clean_up 1
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fi
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cd $tmp_dir
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echo -n "Preparing image archive ..."
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sed -e '1,/^exit_marker$/d' $archive_path | tar xf - || clean_up 1
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echo " OK."
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cd $cur_wd
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extract=no
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args=":x"
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while getopts "$args" a ; do
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case $a in
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x)
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extract=yes
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;;
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*)
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;;
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esac
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done
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if [ "$extract" = "yes" ] ; then
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# stop here
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echo "Image extracted to: $tmp_dir"
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if [ "$(id -u)" = "0" ] ; then
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echo "To un-mount the tmpfs when finished type: umount $tmp_dir"
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fi
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exit 0
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fi
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$tmp_dir/installer/install.sh "$@"
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rc="$?"
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clean_up $rc
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exit_marker
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