cparch: fix

Signed-off-by: alanndz <[email protected]>

system/bin/cparch

@@ -62,7 +62,7 @@ fi
 [[ -d "$CHROOT_DIR/$2" ]] && err "Rootfs instance with name $2 already exists. Exiting."
 
 # Unmount and exit on fail
-! unarch -d "$CHROOT_DIR" "$1" && exit 1
+! unarch -d "$CHROOT_DIR" -n "$1" && exit 1
 
 # Clone
 cp -Ra "$CHROOT_DIR/$1" "$CHROOT_DIR/$2"