aboutsummaryrefslogtreecommitdiff
path: root/gnu/build
diff options
context:
space:
mode:
Diffstat (limited to 'gnu/build')
-rw-r--r--gnu/build/image.scm8
1 files changed, 5 insertions, 3 deletions
diff --git a/gnu/build/image.scm b/gnu/build/image.scm
index bdd5ec25a9..81caa424f8 100644
--- a/gnu/build/image.scm
+++ b/gnu/build/image.scm
@@ -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