ryan77627/guix
1
0
Fork 0
mirror of https://git.in.rschanz.org/ryan77627/guix.git synced 2025-01-12 06:06:53 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

doc: Add guide showing auto-login on a specific TTY to the cookbook.

Browse source 
This is a follow-up to the discussion in <https://bugs.gnu.org/48974>.

* doc/guix-cookbook.texi (System Configuration): Add a brief guide that
explains auto login a user to one TTY.

* doc/guix.texi (System Services): Add an texinfo anchor, so that the cookbook
entry "Auto Login a User to a Specific TTY" can refer back to the precise
point that the GNU Guix Reference manual.  Also add a reference to the
cookbook that shows how to auto login a specific user to one TTY.

Signed-off-by: Leo Prikler <leo.prikler@student.tugraz.at>
This commit is contained in:
Joshua Branson 2021-07-06 21:39:09 -04:00 committed by Leo Prikler
parent eac82c0e0a
commit c2ff06e5e4
No known key found for this signature in database
GPG key ID: 442A84B8C70E2F87
2 changed files with 57 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

51
doc/guix-cookbook.texi
View file

@ -17,6 +17,7 @@ Copyright @copyright{} 2020 Marcin Karpezo@*
Copyright @copyright{} 2020 Brice Waegeneire@*
Copyright @copyright{} 2020 André Batista@*
Copyright @copyright{} 2020 Christopher Lemmer Webber
Copyright @copyright{} 2021 Joshua Branson@*
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
@ -85,8 +86,8 @@ Packaging
System Configuration
* Customizing the Kernel:: Creating and using a custom Linux kernel
* Auto-Login to a Specific TTY:: Automatically Login a User to a Specific TTY
* Customizing the Kernel:: Creating and using a custom Linux kernel on Guix System.
@end detailmenu
@end menu
@ -1353,6 +1354,7 @@ chapter is to demonstrate some advanced configuration concepts.
reference.
@menu
* Auto-Login to a Specific TTY:: Automatically Login a User to a Specific TTY
* Customizing the Kernel:: Creating and using a custom Linux kernel on Guix System.
* Guix System Image API:: Customizing images to target specific platforms.
* Connecting to Wireguard VPN:: Connecting to a Wireguard VPN.
@ -1363,6 +1365,51 @@ reference.
* Setting up NGINX with Lua:: Configuring NGINX web-server to load Lua modules.
@end menu
@node Auto-Login to a Specific TTY
@section Auto-Login to a Specific TTY
While the Guix manual explains auto-login one user to @emph{all} TTYs (
@pxref{auto-login to TTY,,, guix, GNU Guix Reference Manual}), some
might prefer a situation, in which one user is logged into one TTY with
the other TTYs either configured to login different users or no one at
all. Note that one can auto-login one user to any TTY, but it is
usually advisable to avoid @code{tty1}, which, by default, is used to
log warnings and errors.
Here is how one might set up auto login for one user to one tty:
@lisp
(define (auto-login-to-tty config tty user)
(if (string=? tty (mingetty-configuration-tty config))
(mingetty-configuration
(inherit config)
(auto-login user))
config))
(define %my-services
(modify-services %base-services
;; @dots{}
(mingetty-service-type config =>
(auto-login-to-tty
config "tty3" "alice"))))
(operating-system
;; @dots{}
(services %my-services))
@end lisp
One could also @code{compose} (@pxref{Higher-Order Functions,,, guile,
The Guile Reference Manual}) @code{auto-login-to-tty} to login multiple
users to multiple ttys.
Finally, here is a note of caution. Setting up auto login to a TTY,
means that anyone can turn on your computer and run commands as your
regular user.
However, if you have an encrypted root partition, and thus already need
to enter a passphrase when the system boots, auto-login might be a
convenient option.
@node Customizing the Kernel
@section Customizing the Kernel

13
doc/guix.texi
View file

@ -13542,10 +13542,11 @@ Occasionally, instead of using the base services as is, you will want to
customize them. To do this, use @code{modify-services} (@pxref{Service
Reference, @code{modify-services}}) to modify the list.
For example, suppose you want to modify @code{guix-daemon} and Mingetty
(the console log-in) in the @code{%base-services} list (@pxref{Base
Services, @code{%base-services}}). To do that, you can write the
following in your operating system declaration:
@anchor{auto-login to TTY} For example, suppose you want to modify
@code{guix-daemon} and Mingetty (the console log-in) in the
@code{%base-services} list (@pxref{Base Services,
@code{%base-services}}). To do that, you can write the following in
your operating system declaration:
@lisp
(define %my-services
@ -13571,7 +13572,9 @@ following in your operating system declaration:
This changes the configuration---i.e., the service parameters---of the
@code{guix-service-type} instance, and that of all the
@code{mingetty-service-type} instances in the @code{%base-services} list.
@code{mingetty-service-type} instances in the @code{%base-services} list
(@pxref{Auto Login a User to a Specific TTY, see the cookbook for how to
auto-login one user to a specific TTY,, guix-cookbook, GNU Guix Cookbook})).
Observe how this is accomplished: first, we arrange for the original
configuration to be bound to the identifier @code{config} in the
@var{body}, and then we write the @var{body} so that it evaluates to the