Tim Komarov <happycorsair@yandex.ru> writes:

> It's often very useful to run:
>  
> # cp --preserve=xattr aaa.txt  bbb.txt
> Running this on Guix I get:
>  
> cp: cannot preserve extended attributes, cp is built without xattr support

Fixed on the 'core-updates' branch with commit
11ae7e9e45153b63c4bcd1625a6156da512d65a7.

It will take a while before it shows up in the master branch though.