classes: sdcardimage: move to 4GiB image

The card image size should be a multiple of clusters and should
reserve space smaller than the card.

Signed-off-by: Jason Kridner <jdk@ti.com>
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/classes/sdcard_image.bbclass b/classes/sdcard_image.bbclass
index b3885df6..640c6a4a 100644
--- a/classes/sdcard_image.bbclass
+++ b/classes/sdcard_image.bbclass
@@ -10,12 +10,12 @@ IMAGE_CMD_sdimg () {
                 losetup -d $loop_dev || true
         done
 
-        dd if=/dev/zero of=${SDIMG} bs=4k seek=$(echo '256 * 1024' | bc) count=1
+        dd if=/dev/zero of=${SDIMG} bs=$(echo '255 * 63 * 512' | bc) count=444
         losetup -f ${SDIMG}
         LOOPDEV=$(losetup -j ${SDIMG} -o 0 | cut -d ":" -f 1)
 
         # Create partition table
-        dd if=/dev/zero of=${LOOPDEV} bs=1024 count=1024
+        #dd if=/dev/zero of=${LOOPDEV} bs=1024 count=1024
         SIZE=`fdisk -l ${LOOPDEV} | grep Disk | grep bytes | awk '{print $5}'`
         CYLINDERS=`echo $SIZE/255/63/512 | bc`
         {