From: Phillip Susi <psusi@cfl.rr.com>
To: Arand Nash <ienorand@gmail.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: Snapshot rollback
Date: Tue, 25 Oct 2011 21:30:58 -0400 [thread overview]
Message-ID: <4EA762D2.2020605@cfl.rr.com> (raw)
In-Reply-To: <4EA6193B.30104@gmail.com>
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On 10/24/2011 10:04 PM, Arand Nash wrote:
> Btrfs is unfortunately unable to look for snapshots by name above the
> currently set default root (I do not know why exectly), it can however
> find them by id anywhere.
Ok, so looking up subvols by name uses the default subvol to resolve the
name, and so when I change the default subvol to the snapshot of @,
there is no @home name there pointing to the subvol? Things make much
more sense knowing that. I thought that the subvolumes had their own
namespace outside of any one subvolume.
Is there a way to create another name entry in @snap that points to
@home, or can you only have the original @home entry in the default subvol?
> To backup
> ~# mount /dev/sda1 /mnt
> ~# ls /mnt
> @ @home
> ~@ btrfs sub snap /mnt/@ /mnt/@rootsnap
> ~# ls /mnt
> @ @home @rootsnap
>
> And to rollback:
> ~# mv /mnt/@ /mnt/@rootmessy
> ~# mv /mnt/@rootsnap /mnt/@
> And just reboot, since it just mounts whatever is named "@/".
Perfect... I think I'll keep the default subvol mounted under /.subvols
to make managing them easy.
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next prev parent reply other threads:[~2011-10-26 1:30 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-23 19:42 Snapshot rollback Phillip Susi
2011-10-23 20:35 ` Goffredo Baroncelli
2011-10-24 5:45 ` dima
2011-10-24 5:58 ` Fajar A. Nugraha
2011-10-24 8:24 ` dima
2011-10-24 12:11 ` Fajar A. Nugraha
2011-10-25 2:00 ` dima
2011-10-25 8:01 ` Fajar A. Nugraha
2011-10-25 8:54 ` dima
2011-10-25 9:01 ` Fajar A. Nugraha
2011-10-25 0:45 ` Phillip Susi
2011-10-25 2:04 ` Arand Nash
2011-10-26 1:30 ` Phillip Susi [this message]
-- strict thread matches above, loose matches on Subject: below --
2019-07-05 10:38 snapshot rollback Ulli Horlacher
2019-07-05 11:06 ` Ulli Horlacher
2019-07-05 11:47 ` Remi Gauvin
2019-07-05 13:03 ` Graham Cobb
2019-07-05 21:18 ` Chris Murphy
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