image_types.bbclass: set nodesize for btrfs

The default value is 16K which is too big to create image for
core-image-minimal:
rootfs.btrfs is too small to make a usable filesystem
Minimum size for each btrfs device is 41943040.

Use 4K as ext2/3/4 to fix the problem.

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/image_types.bbclass b/meta/classes/image_types.bbclass
index 3e98024cef2c19db7663f3c13abff381b4617fc7..3f97ddd448a9797abef003cda19ddfd324dfe00f 100644 (file)
--- a/meta/classes/image_types.bbclass
+++ b/meta/classes/image_types.bbclass
@@ -218,7 +218,7 @@ EXTRA_IMAGECMD_jffs2 ?= "--pad ${JFFS2_ENDIANNESS} --eraseblock=${JFFS2_ERASEBLO
 EXTRA_IMAGECMD_ext2 ?= "-i 4096"
 EXTRA_IMAGECMD_ext3 ?= "-i 4096"
 EXTRA_IMAGECMD_ext4 ?= "-i 4096"
-EXTRA_IMAGECMD_btrfs ?= ""
+EXTRA_IMAGECMD_btrfs ?= "-n 4096"
 EXTRA_IMAGECMD_elf ?= ""
 
 IMAGE_DEPENDS = ""