Hi Alejandro,
On Wed, 2015-08-26 at 16:57 -0500, Alex Franco wrote:
> Increase sparse image block size when ROOTFS_SIZE is smaller than
> the minimum needed for ext4 to fit into it.
>
> [YOCTO #7664]
>
> Signed-off-by: Alex Franco <alejandro.fra...@linux.intel.com>
> ---
> meta/classes/image_types.bbclass | 10 +++++++++-
> 1 file changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/meta/classes/image_types.bbclass
> b/meta/classes/image_types.bbclass
> index 35ceb7b..61ce222 100644
> --- a/meta/classes/image_types.bbclass
> +++ b/meta/classes/image_types.bbclass
> @@ -49,8 +49,16 @@ oe_mkext234fs () {
> extra_imagecmd=$@
> fi
>
> + # If generating an empty image the size of the sparse block
> should be large
> + # enough to allocate an ext4 filesystem using 4096 bytes per
> inode, this is
> + # about 60K, so dd needs a minimum count of 60, with bs=1024
> (bytes per IO)
> + eval local COUNT=\"0\"
> + eval local MIN_COUNT=\"60\"
> + if [ $ROOTFS_SIZE -lt $MIN_COUNT ]; then
> + eval COUNT=\"$MIN_COUNT\"
> + fi
> # Create a sparse image block
> - dd if=/dev/zero
> of=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.$fstype seek=$ROOTFS_SIZE
> count=0 bs=1k
> + dd if=/dev/zero
> of=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.$fstype seek=$ROOTFS_SIZE
> count=$COUNT bs=1024
Variable references enclosed in {} are less prone to misinterpretation.
> mkfs.$fstype -F $extra_imagecmd
> ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.$fstype -d ${IMAGE_ROOTFS}
> }
>
> --
> 2.5.0
>
--
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