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<p>command <tlmgr init -usertree> gives:<br /></p>
<p>/usr/bin/tlmgr: initialization failed (in setup_unix one)<br /></p>
<p>/usr/bin/tlmgr:could not find usable xzdec<br /></p>
<p>/usr/bin/tlmgr: please install xzdec and try again.<br /></p>
<p>Could not set up the necessary programs.<br /></p>
<p>Installation of packages is not supported.<br /></p>
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