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.
>
next prev parent 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5680034D.7030509@ganomi.com \
--to=j@ganomi.com \
--cc=hugo@carfax.org.uk \
--cc=linux-btrfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).