install: Use the right user and group name for files in the binary tarball.

Suggested by Andreas Enge <andreas@enge.fr>
at <http://lists.gnu.org/archive/html/guix-devel/2015-05/msg00220.html>.

* gnu/system/install.scm (self-contained-tarball): Pass --owner and
  --group to 'tar'.
* doc/guix.texi (Binary Installation): Move group and account creation
  before extraction.  Make "run the daemon" a separate step.

1 files changed, 7 insertions, 2 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index 7c4aa10ac6..bb0d39cb8f 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -265,6 +265,12 @@ is @code{x86_64-linux} for an @code{x86_64} machine already running the
 kernel Linux, and so on.
 
 @item
+Create the group and user accounts for build users as explained below
+(@pxref{Build Environment Setup}).  Use the exact same names as given in
+the example so that files extracted from the archive will have the right
+ownership.
+
+@item
 As @code{root}, run:
 
 @example
@@ -286,8 +292,7 @@ Do @emph{not} unpack the tarball on a working Guix system since that
 would overwrite its own essential files.
 
 @item
-Create the group and user accounts for build users as explained below
-(@pxref{Build Environment Setup}), and run the daemon:
+Run the daemon:
 
 @example
 # /root/.guix-profile/bin/guix-daemon --build-users-group=guixbuild