I am trying to create a xar archive using the tar utility in FreeBSD

tar -c -f test --format xar index.html

I get the following error

Can't use format xar: Xar not supported on this platform

How can I enable xar support for my FreeBSD machine?

  • Try using XAR (all caps) instead of xar (lower-case)? – nomadrc Aug 23 '15 at 4:52
  • @nomad.rc That doesn't work. I get the following error instead Can't use format XAR: No such format 'XAR' – SivaDotRender Aug 23 '15 at 4:56
  • The libarchive-formats(5) man page sections for the formats .cab, .xar, and .lha are blank entries, leading me to believe that they may not be supported by bsd tar. – nomadrc Aug 23 '15 at 5:20

FreeBSD's tar doesn't support the xar format, but once again ports to the rescue - archivers/xar seems to be what you want!

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