From 178be030c0e4fdeac5e1c968b5c99d84bb4691db Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Thu, 6 Dec 2018 17:22:24 +0100
Subject: vm: Add padding in the ISO image.

Fixes <https://bugs.gnu.org/33639>.
Thanks to Ricardo Wurmus and Thomas Schmitt for their suggestions!

* gnu/build/vm.scm (make-iso9660-image): Pass "-padding 10m" to
xorriso.
---
 gnu/build/vm.scm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gnu/build/vm.scm b/gnu/build/vm.scm
index 746808515f..83ad489cc7 100644
--- a/gnu/build/vm.scm
+++ b/gnu/build/vm.scm
@@ -477,6 +477,11 @@ GRUB configuration and OS-DRV as the stuff in it."
                 "mnt=/tmp/root/mnt"
                 "-path-list" "-"
                 "--"
+
+                ;; XXX: Add padding to avoid I/O errors on i686:
+                ;; <https://bugs.gnu.org/33639>.
+                "-padding" "10m"
+
                 "-volid" (string-upcase volume-id)
                 (if volume-uuid
                     `("-volume_date" "uuid"
-- 
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