From f1c166a2833950a7c44fe19b01780723635a7aa3 Mon Sep 17 00:00:00 2001
From: Serge Schneider <serge@raspberrypi.com>
Date: Mon, 29 Apr 2024 14:34:52 +0100
Subject: [PATCH] export-image: run du with -x to avoid crossing filesystem
 boundaries

Fixes #537
---
 export-image/prerun.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/export-image/prerun.sh b/export-image/prerun.sh
index d9778d1db3..6a5309a0a4 100755
--- a/export-image/prerun.sh
+++ b/export-image/prerun.sh
@@ -10,7 +10,7 @@ rm -rf "${ROOTFS_DIR}"
 mkdir -p "${ROOTFS_DIR}"
 
 BOOT_SIZE="$((512 * 1024 * 1024))"
-ROOT_SIZE=$(du --apparent-size -s "${EXPORT_ROOTFS_DIR}" --exclude var/cache/apt/archives --exclude boot/firmware --block-size=1 | cut -f 1)
+ROOT_SIZE=$(du -x --apparent-size -s "${EXPORT_ROOTFS_DIR}" --exclude var/cache/apt/archives --exclude boot/firmware --block-size=1 | cut -f 1)
 
 # All partition sizes and starts will be aligned to this size
 ALIGN="$((4 * 1024 * 1024))"