Re: GPT header checksum mismatch

Reply: Greg Balfour : "Re: GPT header checksum mismatch"
In reply to: Greg Balfour : "GPT header checksum mismatch"
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From: Arthur Chance <freebsd_at_qeng-ho.org>
Date: Tue, 29 Mar 2022 16:47:06 UTC

On 29/03/2022 15:45, Greg Balfour wrote:
> Running 12.3-RELEASE I had a UPS failure and my machine did a reboot
> without properly shutting down.  Now when it boots I see this
> message:
> 
> gptboot: backup GPT header checksum mismatch
> 
> Doing a "gpart show ada0" shows
> 
> 34  976773101  ada0  GPT  (466G) [CORRUPT]
> 
> The machine still boots fine.  I don't have a prior dump of the
> partition table saved.  How can I clean up these errors?
> 

Try gpart recover.

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