[tex-live] tlmgr on Win10 fails

Karl Berry karl at freefriends.org
Fri Nov 16 23:21:32 CET 2018

    untar: untarring
    failed (in C:/Program Files (x86)/texlive/2018)
    TLPDB::_install_package: untar failed

Or a failed/corrupted download. If that a2ping.tar is still around
somewhere, you could try to untar it (with the Windows tar.exe we
provide) by hand. Or maybe you have a GNU tar.exe in your Windows path?!

As far as I can see from TLUtils.pm, function untar(), we run
  tar xmf foo.tar 
on Windows, and just
  tar xf foo.tar
on Unix. This should be maximally portable.

Norbert, I'm not sure about your comment about other tars not
supporting these options. Any tar must support "xf", or it is not tar at
all. And since it's our own tar.exe [normally] being used on Windows, we
know "m" is supported.

Zdenek, I'm not sure about your comment about some tars not supporting
dashless options. tar originally and has always had dashless options. It
is -options (dash) which some tars might not support, and of course
--options (double dash) are completely unportable, essentially assuming
GNU tar. Which we do not do.

At least such is my understanding ... --karl

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