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Date:      Thu, 13 Jun 2013 23:22:36 +0200
From:      Johan Hendriks <joh.hendriks@gmail.com>
To:        Kimmo Paasiala <kpaasial@gmail.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: zpool labelclear destroys GPT data
Message-ID:  <51BA381C.8070900@gmail.com>
In-Reply-To: <CA%2B7WWSdrS2QYKe8-w31dnxYRriYbhYjj_dwOjhXtTvSsh8Cisw@mail.gmail.com>
References:  <51B9BB14.6020103@gmail.com> <CA%2B7WWSdrS2QYKe8-w31dnxYRriYbhYjj_dwOjhXtTvSsh8Cisw@mail.gmail.com>

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Op 13-6-2013 14:40, Kimmo Paasiala schreef:
> The 'device' can be a partition as well as the whole disk, use 'zpool
> labelclear' on the freebsd-zfs partition instead of the whole disk.
>
> -Kimmo
>
> On Thu, Jun 13, 2013 at 3:29 PM, Johan Hendriks <joh.hendriks@gmail.com> wrote:
>> When i use zpool labelclear, it wipes the whole disk including gpt data.
>> So the whole disk is empty and i need to create the gpt partitions again.
>>
>> Is this supposed to work like this?
>> The man page suggests that it only wipes the ZFS metadata.
>>
>> zpool labelclear [-f] device
>>
>>           Removes ZFS label information from the specified device. The device
>>           must not be part of an active pool configuration.
>>
>>           -v      Treat exported or foreign devices as inactive.
>>
>> This is on FreeBSD 9.1 stable r251213 memstick install.
>>
>> regards
>>
>> Johan Hendriks
>> Neuteboom Automatisering
>> _______________________________________________
>> freebsd-stable@freebsd.org mailing list
>> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
>> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
Thanks for your reply.
I will try it on the actual zfs partition.

But imho it is a bad thing that it destroys the whole disk layout.
It does not remove ZFS label information, it removes ALL label 
information on the disk or device you give it

regards
Johan Hendriks
Neuteboom Automatisering




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