Comment 10 for bug 1874243

So it's as Brian commented, but it seems that this part of the code is the same since May 2019, and we have confirmed that encrypted LVM worked fine with 19.10. What I do find weird is that even with an empty dm_name things should still work in curtin, no? Per:

        dm_name = vol.get('dm_name')
        if not dm_name:
            dm_name = vol.get('id')
        volume_path = os.path.join("/dev", "mapper", dm_name)

from curtin/commands/block_meta.py. The id attribute seems to be set correctly, so I wouldn't expect it to suddenly be None? Though the logs seem to indicate that.