From de2f2fc9e8e6d874a11e69adc2f438975a5c1359 Mon Sep 17 00:00:00 2001 From: Saul Wold Date: Wed, 6 Dec 2017 19:37:10 -0800 Subject: image_types: btrfs use sparse file creation This will speed up file creation and still allow the btrfs tools to create a full btrfs image. This is similar to what we do for ext234 FS types. Signed-off-by: Saul Wold Signed-off-by: Ross Burton --- meta/classes/image_types.bbclass | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'meta') diff --git a/meta/classes/image_types.bbclass b/meta/classes/image_types.bbclass index d09d1277ea..e881d0cc2d 100644 --- a/meta/classes/image_types.bbclass +++ b/meta/classes/image_types.bbclass @@ -104,7 +104,7 @@ IMAGE_CMD_btrfs () { size=${MIN_BTRFS_SIZE} bbwarn "Rootfs size is too small for BTRFS. Filesystem will be extended to ${size}K" fi - dd if=/dev/zero of=${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.btrfs count=${size} bs=1024 + dd if=/dev/zero of=${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.btrfs seek=${size} count=0 bs=1024 mkfs.btrfs ${EXTRA_IMAGECMD} -r ${IMAGE_ROOTFS} ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.btrfs } -- cgit 1.2.3-korg