** Changed in: tar (Ubuntu)
Importance: Undecided => High
** Changed in: tar (Ubuntu)
Status: New => Triaged
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https://bugs.launchpad.net/bugs/1785291
Title:
tar --xattr and --xattr-include=* should be defaults
Status in GNU tar:
Unknown
Status in tar package in Ubuntu:
Triaged
Bug description:
As discussed at https://lists.ubuntu.com/archives/ubuntu-
devel/2018-August/040407.html ff, as of Ubuntu 18.04 an Ubuntu root
filesystem uses xattrs for storing filesystem capabilities. We should
therefore have defaults for our tar that preserve these attributes
without needing to pass additional commandline options.
Currently when creating a tarball you must pass the non-default option
--xattrs and when extracting a tarball you must pass the non-default
option --xattrs-include=*.
The latter is particularly awkward, and Colin Watson found some
version of tar documentation that suggests --xattrs-include=* should
never be needed, only --xattrs. But that doesn't appear in the
version of tar(1) in bionic, and in practice --xattrs-include=* is
definitely required.
Ideally we want this changed in upstream tar as well since we can't
rely on users using the Ubuntu build of tar to unpack their Ubuntu
filesystems; but even without this we should change the default in
Ubuntu to take the sharp edges off for our users where possible.
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