Another UEFI testing request

[Jeffrey Bastian]

On Mon, Apr 15, 2013 at 09:32:53PM -0700, Adam Williamson wrote:
> https://dl.fedoraproject.org/pub/alt/stage/19-Alpha-RC3/

I'll try Alpha RC3 tomorrow (I'm not near my UEFI hardware today), but I
have run into an interesting problem with the backup GPT label and I
wonder if anyone else has seen it: my backup GPT label is corrupt on
every boot.

I can temporarily fix the backup GPT by running gdisk or parted, but as
soon as I reboot, it's corrupt again.

I opened 3 BZs before I realized they were all due to the same root
cause:
1. https://bugzilla.redhat.com/show_bug.cgi?id=950145
   pvcreate fails when anaconda tries to partition the disk
2. https://bugzilla.redhat.com/show_bug.cgi?id=950206
   rescue boot can't find installed OS
3. https://bugzilla.redhat.com/show_bug.cgi?id=951244
   installation cannot preserve existing partitions

In that last BZ (951244) I did some comparison between the main GPT and
backup GPT and I see that the backup GPT always has 0 for the CRC32 for
the partition table.  When I "fix" the problem with gdisk or parted, the
CRC32 is set correctly, but after a reboot it's always reset back to 0.

Has anyone else seen this problem?  Is this a bug in parted?  Or is this
maybe a firmware problem on my system (Dell Optiplex 990)?

Jeff