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gnu: grub: Only do code substitution when input is available.

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* gnu/packages/bootloaders.scm (grub)[arguments]: In custom 'patch-stuff
phase only substitute the absolute location of the mdadm binary when it
is an input.
This commit is contained in:
Efraim Flashner 2020-11-08 12:26:24 +02:00
parent 8c287bb2fb
commit 149666dfef
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1 changed files with 7 additions and 6 deletions
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13
gnu/packages/bootloaders.scm
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@ -6,7 +6,7 @@
;;; Copyright © 2016, 2017, 2018 Marius Bakke <mbakke@fastmail.com>
;;; Copyright © 2016, 2017 Danny Milosavljevic <dannym@scratchpost.org>
;;; Copyright © 2016, 2017 David Craven <david@craven.ch>
;;; Copyright © 2017, 2018 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2017, 2018, 2020 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2019 nee <nee@cock.li>
;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
@ -115,11 +115,12 @@ (define-public grub
;; determine the root file system when it's a RAID
;; device. Failing to do that, 'grub-probe' silently
;; fails if 'mdadm' is not in $PATH.
(substitute* "grub-core/osdep/linux/getroot.c"
(("argv\\[0\\] = \"mdadm\"")
(string-append "argv[0] = \""
(assoc-ref inputs "mdadm")
"/sbin/mdadm\"")))
(when (assoc-ref inputs "mdadm")
(substitute* "grub-core/osdep/linux/getroot.c"
(("argv\\[0\\] = \"mdadm\"")
(string-append "argv[0] = \""
(assoc-ref inputs "mdadm")
"/sbin/mdadm\""))))
;; Make the font visible.
(copy-file (assoc-ref (or native-inputs inputs)