Could be related this bug, I see the same error there after Disks
changes partitioning, and the old partition table is being used. A
feature for Fedora 25 is udisks is replaced by storaged, so this could
be part of that problem. But I have no idea why could-init would be
using udisks or storaged, so this might be a goose chase.
Error setting partition type after formatting
https://bugzilla.redhat.com/show_bug.cgi?id=1374334
Chris Murphy