@dolbycat   The tar command recognizes that the .pat file cannot be unpacked. How did you get past this problem? The tar version in my xubuntu is as follows and cannot be upgraded. tar --version tar (GNU tar) 1.30 Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. ------------