From c2ff06e5e410e615397b9df901af8028a64b3d82 Mon Sep 17 00:00:00 2001 From: Joshua Branson Date: Tue, 6 Jul 2021 21:39:09 -0400 Subject: doc: Add guide showing auto-login on a specific TTY to the cookbook. This is a follow-up to the discussion in . * 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 --- doc/guix-cookbook.texi | 51 ++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 49 insertions(+), 2 deletions(-) (limited to 'doc/guix-cookbook.texi') diff --git a/doc/guix-cookbook.texi b/doc/guix-cookbook.texi index 1cddaa7faf..2e627ecc51 100644 --- a/doc/guix-cookbook.texi +++ b/doc/guix-cookbook.texi @@ -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 -- cgit v1.2.3