The aim of this Project is to create a deamon for a server, wich update live systems.
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#!/bin/bash
#remaster lib
[ -d "<LIBDIR>" ] || { echo "LIBDIR not exist"; exit 1; }
#filesystem_extract [filesystem_img_source] [chroot_path]
function filesystem_extract() {
echo "extract filesystem ..."
#$1 = filesystem_img_source
#$2 = chroot_path
filesystem_img_source="$1"
chroot_path="$2"
filesystem_log="`mktemp`"
#Überfrüfen der Parameter
[ -f "$filesystem_img_source" ] || {
echo "### ERROR ### filesystem_extract: squashfs \"$filesystem_img_source\" not exist!"
return 11
}
[ "`mkdir -p "$chroot_path"`" != "" ] && {
echo "### ERROR ### filesystem_extract: chroot_path \"$chroot_path\" can't create!"
return 13
}
[ "`filesystem_get_type $chroot_path`" != "ext4" ] && [ "`filesystem_get_type $chroot_path`" != "btrfs" ] && {
echo "### ERROR ### filesystem_extract: wrong filesystem (`filesystem_get_type $chroot_path`)!"
return 22
}
rm -r "$chroot_path"
#eigendliches entpacken
unsquashfs -d "$chroot_path" "$filesystem_img_source" > "$filesystem_log" || {
echo "### ERROR ### filesystem_extract: unsquashfs failed!"
return 14
}
grep -v "\[" "$filesystem_log"
rm "$filesystem_log"
echo "done"
}
#this func is standalone executable
[ -n "$1" ] && {
filesystem_extract $@
}