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doc: Improve wording and example in "Using the Configuration System". 

* doc/guix.texi (Using the Configuration System): Make the intro more
  user-oriented.  Change example to return an operating system.  Fix
  typos.  Mention mandatory/optional fields.
This commit is contained in:
Ludovic Courtès 2014-06-27 23:20:26 +02:00
parent 5d69fb54fb
commit 0918e64a49
1 changed files with 32 additions and 26 deletions
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doc/guix.texi
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@ -3114,10 +3114,11 @@ instance to support new system services.
@node Using the Configuration System
@subsection Using the Configuration System
The operating system is configured by filling in an
@code{operating-system} structure, as defined by the @code{(gnu system)}
module. A simple setup, with the default system services, the default
Linux-Libre kernel, initial RAM disk, and boot loader looks like this:
The operating system is configured by providing an
@code{operating-system} declaration in a file that can then be passed to
the @command{guix system} command (@pxref{Invoking guix system}). A
simple setup, with the default system services, the default Linux-Libre
kernel, initial RAM disk, and boot loader looks like this:
@findex operating-system
@lisp
@ -3125,7 +3126,6 @@ Linux-Libre kernel, initial RAM disk, and boot loader looks like this:
(gnu packages emacs) ; for 'emacs'
(gnu services ssh)) ; for 'lsh-service'
(define komputilo
(operating-system
(host-name "komputilo")
(timezone "Europe/Paris")
@ -3144,14 +3144,20 @@ Linux-Libre kernel, initial RAM disk, and boot loader looks like this:
(home-directory "/home/alice"))))
(packages (cons emacs %base-packages))
(services (cons (lsh-service #:port 2222 #:allow-root-login? #t)
%base-services))))
%base-services)))
@end lisp
This example should be self-describing. The @code{packages} field lists
This example should be self-describing. Some of the fields defined
above, such as @code{host-name} and @code{bootloader}, are mandatory.
Others, such as @code{packages} and @code{services}, can be omitted, in
which case they get a default value.
@vindex %base-packages
The @code{packages} field lists
packages that will be globally visible on the system, for all user
accounts---i.e., in every user's @code{PATH} environment variable---in
addition to the per-user profiles (@pxref{Invoking guix package}). The
@var{%base-packages} variables provides all the tools one would expect
@var{%base-packages} variable provides all the tools one would expect
for basic user and administrator tasks---including the GNU Core
Utilities, the GNU Networking Utilities, the GNU Zile lightweight text
editor, @command{find}, @command{grep}, etc. The example above adds