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May I get a pointer to convert_to_biosdevname()? ovirt-node's git-grep gives me nothing.
If the suggested patch is sufficient, I think we can make it to 6.3's 0day.
Comment 5Douglas Schilling Landgraf
2012-05-22 22:05:01 UTC
Talked with jboggs and mburns the ovirt-node guys will implement the upgrade as a service (ovirt-early), no changes are required in vdsm at this moment.
Comment 6Douglas Schilling Landgraf
2012-05-22 22:11:02 UTC
*** This bug has been marked as a duplicate of bug 822848 ***
(In reply to comment #7)
> Folks, wouldn't we (and the rest of the world) have the same problem on a
> `yum upgrade` of a plain RHEL-6.2 to RHEL-6.3?
Only if you install biosdevnames as well, which shouldn't happen automatically.
I think we have another serious upgrade issue due to this. bug 822953 reminded me that Vdsm (foolishly! doh!) generates the host uuid based on the mac address of alphabetically-first host nic. With biosdevnames installed, nic names and order may change, leading to the node changing its uuid after upgrade. Maybe that's even a cause for bug 822925.
As a solution, we could hack the upgrade script to persist the pre-upgrade uuid on disk, and hack vdsm-reg to report the persisted copy.
Or we could ditch biosdevnames.
Sorry for being hysterical. Host macs are sorted by their address, not by their nic name (pun unintended). So installing biosdevnames is not expected to change the node id.