[meta-virtualization] Yocto sumo: including vmdk image leads to build errors

[Alkis Mavridis]

Hello!
I am trying to build a linux image with docker installed (I user yocto
sumo).

Everything builds and runs successfully, until I add vmdk support to my
local.conf:
IMAGE_FSTYPES += "vmdk"

Then, I get the following errors:

=====================================
user at zenoUbuntu:~/yocto/sumo/build$ bitbake core-image-minimal
ERROR: /home/user/yocto/sumo/meta-virtualization/recipes-extended/images/
xen-image-minimal.bb: No IMAGE_CMD defined for IMAGE_FSTYPES entry 'vmdk' -
possibly invalid type name or missing support class
ERROR: /home/user/yocto/sumo/meta-virtualization/recipes-extended/images/
xen-guest-image-minimal.bb: No IMAGE_CMD defined for IMAGE_FSTYPES entry
'vmdk' - possibly invalid type name or missing support class
ERROR: Failed to parse recipe:
/home/user/yocto/sumo/meta-virtualization/recipes-extended/images/
xen-image-minimal.bb
ERROR: /home/user/yocto/sumo/meta-virtualization/recipes-extended/images/
kvm-image-minimal.bb: No IMAGE_CMD defined for IMAGE_FSTYPES entry 'vmdk' -
possibly invalid type name or missing support class
ERROR: /home/user/yocto/sumo/meta-virtualization/recipes-extended/images/
cloud-image-guest.bb: No IMAGE_CMD defined for IMAGE_FSTYPES entry 'vmdk' -
possibly invalid type name or missing support class

Summary: There were 5 ERROR messages shown, returning a non-zero exit code.
======================================


Unfortunatelly, it will be very difficult for us to give up from  vmdk
support.
Is there any way to have both docker and vmdk?

PS: Vmdk was working in yocto morty without problems. But we needed a newer
version of docker, so we had moved to yocto sumo.

Thanks in advance!
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