Good Linux question — answering as the UphillTech team:
The line tar (child): xz: Cannot exec: No such file or directory gives you the real error. The xz programm cannot be executed, probably because it is not installed. To install the xz (de)compression tools, issue one of the following commands depending on your distibution: sudo apt-get install xz-utils # Debian / Ubuntu sudo yum install xz # RHEL / CentOS sudo zypper in xz # OpenSuSE sudo pacman -S xz # Arch Linux
Full answer by mpy: https://superuser.com/a/801189 (CC BY-SA 3.0).
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