Comment 7 for bug 1835087

One of the changes made in the reusing existing partitions work is that disks are now always included in the config, but have preserve: true set when there are no changes being made to this disk. Possibly this was a mistake.

*That said*, in this case I think the problem is in curtin. The probe data for vdb has no ID_PART_TABLE keys but curtin does this:

            # default to gpt if not present
            entry['ptable'] = blockdev_data.get('ID_PART_TABLE_TYPE', 'gpt')

This seems wrong.