BuildSystem: using sysroot doesn't need root privileges anymore!

Sysroot is now created with fakeroot. This allows root access to be
only needed for disk image creation, since it uses loopback devices.

script/image.sh

@@ -1,44 +1,38 @@
 #!/bin/bash
 
-if [[ -z $BANAN_ROOT_DIR ]]; then
-	echo  "You must set the BANAN_ROOT_DIR environment variable" >&2
-	exit 1
-fi
-
 if [[ -z $BANAN_DISK_IMAGE_PATH ]]; then
 	echo  "You must set the BANAN_DISK_IMAGE_PATH environment variable" >&2
 	exit 1
 fi
 
-if [[ -z $BANAN_SYSROOT ]]; then
-	echo  "You must set the BANAN_SYSROOT environment variable" >&2
+if [[ -z $BANAN_SYSROOT_TAR ]]; then
+	echo  "You must set the BANAN_SYSROOT_TAR environment variable" >&2
 	exit 1
 fi
 
-if [[ ! -f $BANAN_DISK_IMAGE_PATH ]]; then
-	$BANAN_SCRIPT_DIR/image-full.sh
-	exit 0
+if [[ "$1" == "full" ]] || [[ ! -f $BANAN_DISK_IMAGE_PATH ]]; then
+	$BANAN_SCRIPT_DIR/image-create.sh
+else
+	fdisk -l $BANAN_DISK_IMAGE_PATH | grep -q 'EFI System'; IMAGE_IS_UEFI=$?
+	[[ $BANAN_UEFI_BOOT == 1 ]]; CREATE_IS_UEFI=$?
+
+	if [[ $IMAGE_IS_UEFI -ne $CREATE_IS_UEFI ]]; then
+		echo Converting disk image to/from UEFI
+		$BANAN_SCRIPT_DIR/image-create.sh
+	fi
 fi
 
-fdisk -l $BANAN_DISK_IMAGE_PATH | grep -q 'EFI System'; IMAGE_IS_UEFI=$?
-[[ $BANAN_UEFI_BOOT == 1 ]]; CREATE_IS_UEFI=$?
-
-if [[ $IMAGE_IS_UEFI -ne $CREATE_IS_UEFI ]]; then
-	echo Converting disk image to/from UEFI
-	$BANAN_SCRIPT_DIR/image-full.sh
-	exit 0
-fi
-
-MOUNT_DIR=/mnt
-
-LOOP_DEV=$(sudo losetup -f --show $BANAN_DISK_IMAGE_PATH)
+LOOP_DEV=$(sudo losetup --show -f "$BANAN_DISK_IMAGE_PATH")
 sudo partprobe $LOOP_DEV
 
-ROOT_PARTITON=${LOOP_DEV}p2
+ROOT_PARTITION=${LOOP_DEV}p2
+MOUNT_DIR=/mnt
 
-sudo mount $ROOT_PARTITON $MOUNT_DIR
+sudo mount $ROOT_PARTITION $MOUNT_DIR
 
-sudo rsync -a ${BANAN_SYSROOT}/* ${MOUNT_DIR}/
+cd $MOUNT_DIR
+sudo tar xf $BANAN_SYSROOT_TAR
+cd
 
 sudo umount $MOUNT_DIR