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From: Jiri Kanicky <j@ganomi.com>
To: Hugo Mills <hugo@carfax.org.uk>, linux-btrfs@vger.kernel.org
Subject: Re: How to change BTRFS filesystem UUID
Date: Mon, 28 Dec 2015 02:27:09 +1100	[thread overview]
Message-ID: <5680034D.7030509@ganomi.com> (raw)
In-Reply-To: <20151227144535.GJ1586@carfax.org.uk>

Hi,

Thanks for the reply. Looks like I will have o use some newer distro. 
Debian Jessie rescue CD does not seem to have this. Anyway, i will play 
with this.

Thank you Jiri

On 28/12/2015 1:45 AM, Hugo Mills wrote:
> On Mon, Dec 28, 2015 at 01:31:26AM +1100, Jiri Kanicky wrote:
>> Hi,
>>
>> I cloned several machines from the same disk and they all have same
>> BTRFS filesystem UUID. I need to recovery one disk from failure, but
>> if I attach two disks to the same machine, both disks have the same
>> ID.
>>
>> This seem to confuse UDEV, because /dev/disk/by-uuid seem to show
>> just one link, not two links to two disks.
>>
>> Is there a way to change the BTRFS ID (generate new one) that I can
>> differentiate between the two disks on one host?
>     btrfstune, with -u or -U
>
>     Hugo.
>


  reply	other threads:[~2015-12-27 15:28 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-27 14:31 How to change BTRFS filesystem UUID Jiri Kanicky
2015-12-27 14:45 ` Hugo Mills
2015-12-27 15:27   ` Jiri Kanicky [this message]
2015-12-27 23:01     ` Christoph Anton Mitterer
2015-12-27 23:13       ` Hugo Mills
2015-12-28  1:00         ` Duncan
2015-12-28  2:13         ` Jiri Kanicky
2015-12-28  4:35           ` Duncan
2015-12-27 14:48 ` Holger Hoffstätte

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