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build: image: Account for fixed-size file system structures.

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Workaround for <https://issues.guix.gnu.org/53194>.

* gnu/build/image.scm (estimate-partition-size): Enforce a 1-MiB minimum.

Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
This commit is contained in:
Tobias Geerinckx-Rice 2022-01-11 20:31:27 +01:00 committed by Maxim Cournoyer
parent 805af862c6
commit 472680a28d
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1 changed files with 5 additions and 3 deletions
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8
gnu/build/image.scm
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@ -3,7 +3,7 @@
;;; Copyright © 2016 Christine Lemmer-Webber <cwebber@dustycloud.org>
;;; Copyright © 2016, 2017 Leo Famulari <leo@famulari.name>
;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
;;; Copyright © 2020 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2020, 2022 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2020 Mathieu Othacehe <m.othacehe@gmail.com>
;;;
;;; This file is part of GNU Guix.
@ -62,8 +62,10 @@
(define (estimate-partition-size root)
"Given the ROOT directory, evaluate and return its size. As this doesn't
take the partition metadata size into account, take a 25% margin."
(* 1.25 (file-size root)))
take the partition metadata size into account, take a 25% margin. As this in
turn doesn't take any constant overhead into account, force a 1-MiB minimum."
(max (ash 1 20)
(* 1.25 (file-size root))))
(define* (make-ext-image partition target root
#:key