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installer: Load uvesafb kernel module.

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Fixes <https://bugs.gnu.org/40538>.

Machines without Kernel Mode Setting (those with many old and current AMD
GPUs, SiS GPUs, …) need uvesafb to show the GUI installer.  Some may also need
a kernel parameter like nomodeset or vga=793, but we leave that for the user
to specify in GRUB.

* gnu/system/install.scm (uvesafb-shepherd-service): New procedure.
(uvesafb-service-type): New variable.
(%installation-services): Add it.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Florian Pelz 2020-04-11 18:56:37 +02:00 committed by Ludovic Courtès
parent c635610bc6
commit 557e6820a7
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1 changed files with 41 additions and 1 deletions
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42
gnu/system/install.scm
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@ -4,6 +4,7 @@
;;; Copyright © 2016 Andreas Enge <andreas@enge.fr>
;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
;;; Copyright © 2017, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2020 Florian Pelz <pelzflorian@pelzflorian.de>
;;;
;;; This file is part of GNU Guix.
;;;
@ -27,6 +28,7 @@
#:use-module (guix gexp)
#:use-module (guix store)
#:use-module (guix monads)
#:use-module (guix modules)
#:use-module ((guix packages) #:select (package-version))
#:use-module ((guix store) #:select (%store-prefix))
#:use-module (gnu installer)
@ -50,6 +52,7 @@
#:use-module (gnu packages texinfo)
#:use-module (gnu packages compression)
#:use-module (gnu packages nvi)
#:use-module (gnu packages xorg)
#:use-module (ice-9 match)
#:use-module (srfi srfi-26)
#:export (installation-os
@ -287,6 +290,37 @@ the user's target storage device rather than on the RAM disk."
(persistent? #f)
(max-database-size (* 5 (expt 2 20)))))) ;5 MiB
;; These define a service to load the uvesafb kernel module with the
;; appropriate options. The GUI installer needs it when the machine does not
;; support Kernel Mode Setting. Otherwise kmscon is missing /dev/fb0.
(define (uvesafb-shepherd-service _)
(list (shepherd-service
(documentation "Load the uvesafb kernel module.")
(provision '(uvesafb))
(requirement '(file-systems))
(start #~(lambda ()
;; uvesafb is only supported on x86 and x86_64.
(or (not (and (string-suffix? "linux-gnu" %host-type)
(or (string-prefix? "x86_64" %host-type)
(string-prefix? "i686" %host-type))))
(invoke #+(file-append kmod "/bin/modprobe")
"uvesafb"
(string-append "v86d=" #$v86d "/sbin/v86d")
"mode_option=1024x768"))))
(respawn? #f)
(one-shot? #t))))
(define uvesafb-service-type
(service-type
(name 'uvesafb)
(extensions
(list (service-extension shepherd-root-service-type
uvesafb-shepherd-service)))
(description
"Load the @code{uvesafb} kernel module with the right options.")
(default-value #t)))
(define %installation-services
;; List of services of the installation system.
(let ((motd (plain-file "motd" "
@ -408,7 +442,13 @@ Access documentation at any time by pressing Alt-F2.\x1b[0m
(list bare-bones-os
glibc-utf8-locales
texinfo
(canonical-package guile-2.2))))))
(canonical-package guile-2.2)))
;; Machines without Kernel Mode Setting (those with many old and
;; current AMD GPUs, SiS GPUs, ...) need uvesafb to show the GUI
;; installer. Some may also need a kernel parameter like nomodeset
;; or vga=793, but we leave that for the user to specify in GRUB.
(service uvesafb-service-type))))
(define %issue
;; Greeting.