From: Michael Tremer <michael.tremer@ipfire.org>
Date: Tue, 9 Jul 2024 19:24:14 +0000 (+0000)
Subject: flash-images: Create the base image as a sparse file
X-Git-Tag: v2.29-core188~10^2~284
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=61cb600a13aa318f4aed86e39e1bc2a9f24aee4b;p=ipfire-2.x.git

flash-images: Create the base image as a sparse file

This will be much faster as it creates less IO.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/lfs/flash-images b/lfs/flash-images
index fceff9e53c..d3d550c6b6 100644
--- a/lfs/flash-images
+++ b/lfs/flash-images
@@ -104,7 +104,7 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 	rm -rf $(IMG) $(MNThdd) && mkdir -p $(MNThdd)
 
 	# Allocate image on disk
-	dd if=/dev/zero of=$(IMG) bs=512 count=$$(( $(S_OFFSET) + $(S_BOOT) + $(S_EFI) + $(S_ROOT) ))
+	dd if=/dev/zero of=$(IMG) bs=512 count=0 seek=$$(( $(S_OFFSET) + $(S_BOOT) + $(S_EFI) + $(S_ROOT) ))
 	losetup $(DEVICE) $(IMG)
 
 	# Write Partition table