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system: Omit “root=” kernel argument when root device is “none”.

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* gnu/system.scm (bootable-kernel-arguments): Fallback to tmpfs
if root is "none".

Change-Id: I35a656e71169dc786e5256d98a3c04c65043086d
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Nicolas Graves 2024-02-04 03:19:56 +01:00 committed by Ludovic Courtès
parent 27ee6f06d0
commit 3378c1a9c6
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1 changed files with 13 additions and 9 deletions
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22
gnu/system.scm
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@ -15,6 +15,7 @@
;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
;;; Copyright © 2021 raid5atemyhomework <raid5atemyhomework@protonmail.com>
;;; Copyright © 2023 Bruno Victal <mirai@makinata.eu>
;;; Copyright © 2024 Nicolas Graves <ngraves@ngraves.fr>
;;;
;;; This file is part of GNU Guix.
;;;
@ -197,15 +198,18 @@ (define* (bootable-kernel-arguments system root-device version)
;; compatibility when producing bootloader configurations for older
;; generations.
(define version>0? (> version 0))
(list (string-append (if version>0? "root=" "--root=")
;; Note: Always use the DCE format because that's what
;; (gnu build linux-boot) expects for the 'root'
;; kernel command-line option.
(file-system-device->string root-device
#:uuid-type 'dce))
#~(string-append (if #$version>0? "gnu.system=" "--system=") #$system)
#~(string-append (if #$version>0? "gnu.load=" "--load=")
#$system "/boot")))
(let ((root (file-system-device->string root-device
#:uuid-type 'dce)))
(append
(if (string=? root "none")
'() ; Ignore the case where the root is "none" (typically tmpfs).
;; Note: Always use the DCE format because that's what
;; (gnu build linux-boot) expects for the 'root'
;; kernel command-line option.
(list (string-append (if version>0? "root=" "--root=") root)))
(list #~(string-append (if #$version>0? "gnu.system=" "--system=") #$system)
#~(string-append (if #$version>0? "gnu.load=" "--load=")
#$system "/boot")))))
;; System-wide configuration.