[meta-oe][PATCH] image_types_sparse: create symlinks for generated sparse images

[meta-oe][PATCH] image_types_sparse: create symlinks for generated sparse images

[AshishKumar Mishra]

Ensure that symbolic links (${IMAGE_LINK_NAME}) are created for both
sparse images, matching standard Yocto image deployment behavior

Signed-off-by: AshishKumar Mishra <emailaddress.ashish@gmail.com>
---
 meta-oe/classes/image_types_sparse.bbclass | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/meta-oe/classes/image_types_sparse.bbclass b/meta-oe/classes/image_types_sparse.bbclass
index 5c1d92bd18..2ee4aa1159 100644
--- a/meta-oe/classes/image_types_sparse.bbclass
+++ b/meta-oe/classes/image_types_sparse.bbclass
@@ -16,11 +16,13 @@ CONVERSION_CMD:sparse = " \
     case '${type}' in \
         ext*) \
             bbnote 'Running e2fsprogs-derived ext2simg_android..' ; \
-            ext2simg_android '${IMAGE_NAME}.${type}' '${IMAGE_NAME}.${type}.simg' || bberror 'ext2simg_android failed' \
+            ext2simg_android '${IMAGE_NAME}.${type}' '${IMAGE_NAME}.${type}.simg' || bberror 'ext2simg_android failed' ;\
+            ln -sf '${IMAGE_NAME}.${type}.simg' '${IMGDEPLOYDIR}/${IMAGE_LINK_NAME}.${type}.simg'; \
             ;; \
         *) \
             bbnote 'Generating sparse image for non-ext filesystem...'; \
             img2simg -s '${IMAGE_NAME}.${type}' '${IMAGE_NAME}.${type}.sparse' ${SPARSE_BLOCK_SIZE}; \
+            ln -sf '${IMAGE_NAME}.${type}.sparse' '${IMGDEPLOYDIR}/${IMAGE_LINK_NAME}.${type}.sparse'; \
             ;; \
     esac; \
     if [ "${DELETE_RAWIMAGE_AFTER_SPARSE_CMD}" = "1" ]; then \
-- 
2.43.0

Re: [meta-oe][PATCH] image_types_sparse: create symlinks for generated sparse images

[Leo Sartre]

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Hello,

On Wed, Sep 2, 2026 at 06:20 PM, Ashish Mishra wrote:

> 
> Ensure that symbolic links (${IMAGE_LINK_NAME}) are created for both
> sparse images, matching standard Yocto image deployment behavior
> 
> Signed-off-by: AshishKumar Mishra <emailaddress.ashish@gmail.com>
> ---
> meta-oe/classes/image_types_sparse.bbclass | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/meta-oe/classes/image_types_sparse.bbclass
> b/meta-oe/classes/image_types_sparse.bbclass
> index 5c1d92bd18..2ee4aa1159 100644
> --- a/meta-oe/classes/image_types_sparse.bbclass
> +++ b/meta-oe/classes/image_types_sparse.bbclass
> @@ -16,11 +16,13 @@ CONVERSION_CMD:sparse = " \
> case '${type}' in \
> ext*) \
> bbnote 'Running e2fsprogs-derived ext2simg_android..' ; \
> - ext2simg_android '${IMAGE_NAME}.${type}' '${IMAGE_NAME}.${type}.simg' ||
> bberror 'ext2simg_android failed' \
> + ext2simg_android '${IMAGE_NAME}.${type}' '${IMAGE_NAME}.${type}.simg' ||
> bberror 'ext2simg_android failed' ;\
> + ln -sf '${IMAGE_NAME}.${type}.simg'
> '${IMGDEPLOYDIR}/${IMAGE_LINK_NAME}.${type}.simg'; \

Wouldn't it be simpler to use same .sparse extension name for this image too, that way the IMAGE_LINK_NAME symlink is created by oe-core image.bbclass.
It is what I've done in this change: https://lists.openembedded.org/g/openembedded-devel/message/129709 (sorry did not saw this one before submitting mine).

> 
> ;; \
> *) \
> bbnote 'Generating sparse image for non-ext filesystem...'; \
> img2simg -s '${IMAGE_NAME}.${type}' '${IMAGE_NAME}.${type}.sparse'
> ${SPARSE_BLOCK_SIZE}; \
> + ln -sf '${IMAGE_NAME}.${type}.sparse'
> '${IMGDEPLOYDIR}/${IMAGE_LINK_NAME}.${type}.sparse'; \

I think this is already covered by the oe-core image.bbclass: https://github.com/openembedded/openembedded-core/blob/master/meta/classes-recipe/image.bbclass#L493
So this line is not needed.
> 
> ;; \
> esac; \
> if [ "${DELETE_RAWIMAGE_AFTER_SPARSE_CMD}" = "1" ]; then \
> --
> 2.43.0

Regards

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