System boot error after System upgrade

H

hp21

Hi,

After I have try to upgrade my system from 8.0 Stable to 8.1 Stable do not boot my system.

The system disk is geom_mirror.

If I try to boot the system, I get following message:

Code: 
GEOM: mirror/gm0: corrupt or invalid GPT detected.
GEOM: mirror/gm0: GPT rejected -- may not be recoverable.

and when system try boot form disk
Code: 
Trying to mount root from ufs:/dev/mirror/gm0p2

I get a ROOT MOUNT ERROR.

With livefs CD I tried a gpart show mirror/gm0 get i no information.

Have somebody an idea how I can fix that problem??
 
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