From mboxrd@z Thu Jan  1 00:00:00 1970
From: "David C. Rankin" <drankinatty@suddenlinkmail.com>
Subject: Re: GPT corruption on Primary Header, backup OK, fixing primary nuked
 array -- help?
Date: Tue, 26 Jul 2016 17:59:57 -0500
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On 07/26/2016 05:10 PM, Phil Turmel wrote:
> You won't be able to re-add sdd because as Chris said, "fixing" the
> primary GPT broke mdadm's superblock.  After zeroing the beginning 4k of
> sdd, --add it to your array and let it rebuild.
> 
> Phil

Thanks Phil, what's the quickest way to zero the 4k, something like

# dd of=/dev/sdd if=/dev/zero bs=1 count=4096

??

-- 
David C. Rankin, J.D.,P.E.