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Description of problem:
rhel-guest-image-8 should use qcow2v2 consistently according to RHEL6 hypervisor compatible reason

Version-Release number of selected component (if applicable):
rhel-guest-image-8.5-981.x86_64.qcow2

How reproducible:
100%

Steps to Reproduce:
1. qemu-img info rhel-guest-image-8.5-1075.x86_64.qcow2
2.
3.

Actual results:
    compat: 1.1

Expected results:
    compat: 0.1

Additional info:
latest rhel-guest-image-8.6-361.x86_64.qcow2 doesn't have this issue

This is a bug in osbuild, the qcow2 compatibility version is passed in the field "compat" but osbuild reads it from an unknown field named "qcow2_compat". Sadly, as this field is purely optional, no exception is thrown and the unknown field is just ignored. This should be trivial to fix, Christian is already working on it.

I deployed the fix to the internal image building service. The next nightly should have the right qcow2 version.

Verified with the latest nightly build:

$ qemu-img info rhel-guest-image-8.5-1107.x86_64.qcow2
image: rhel-guest-image-8.5-1107.x86_64.qcow2
file format: qcow2
virtual size: 10 GiB (10737418240 bytes)
disk size: 743 MiB
cluster_size: 65536
Format specific information:
    compat: 0.10
    compression type: zlib
    refcount bits: 16

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (osbuild bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:4273