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From: Qu Wenruo <quwenruo.btrfs@gmx.com>
To: Pierre Couderc <pierre@couderc.eu>, linux-btrfs@vger.kernel.org
Subject: Re: How to erase a RAID1 ?
Date: Wed, 29 Aug 2018 20:52:42 +0800	[thread overview]
Message-ID: <52b06c19-c9e2-29c1-b761-98d770c2d6c7@gmx.com> (raw)
In-Reply-To: <04e4b43f-b21e-b6fd-dfad-0506ff35aff7@couderc.eu>


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On 2018/8/29 下午8:49, Pierre Couderc wrote:
> I want to reinstall a RAID1 btrfs system (wchis is now under debian
> stretch, and will be reinstalled in stretch).

If you still want to use btrfs, just umount the original fs, and

# mkfs.btrfs -f <old devices>

Then a completely new btrfs.

> 
> How to correctly "erase" it ? Not truly hard erase it, but so that old
> data does not appear...

If not planing to use btrfs, umount the fs and then wipefs -fa <old devices>

Thanks,
Qu

> 
> It is not clear in the wiki.
> 
> Thanks
> 
> PC
> 


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  reply	other threads:[~2018-08-29 16:49 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-29 12:49 How to erase a RAID1 ? Pierre Couderc
2018-08-29 12:52 ` Qu Wenruo [this message]
2018-08-29 14:07   ` Pierre Couderc
2018-08-30  1:24     ` Qu Wenruo
2018-08-30  9:13       ` How to erase a RAID1 (+++)? Pierre Couderc
2018-08-30  9:35         ` Qu Wenruo
2018-08-30 10:01           ` Pierre Couderc
2018-08-30 10:09             ` Qu Wenruo
2018-08-30 11:45             ` Kai Stian Olstad
2018-08-30 15:21         ` Alberto Bursi
2018-08-30 17:33           ` Chris Murphy
2018-08-30 17:44             ` Chris Murphy
2018-08-30 17:08         ` Chris Murphy
2018-08-31  2:29           ` Duncan
2018-08-31  6:53             ` Pierre Couderc
2018-08-31 14:54               ` Alberto Bursi
2018-08-31 15:58                 ` Pierre Couderc
2018-08-31 16:38                 ` Duncan
2018-08-31  6:41           ` Pierre Couderc

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