From: Stefan Behrens <sbehrens@giantdisaster.de>
To: "Miguel Negrão" <miguel.negrao-lists@friendlyvirus.org>
Cc: btrfs list <linux-btrfs@vger.kernel.org>
Subject: Re: btrfs send /receive : having problems sending a snapshot back to the original partition
Date: Mon, 01 Jul 2013 17:50:01 +0200 [thread overview]
Message-ID: <51D1A529.4040109@giantdisaster.de> (raw)
In-Reply-To: <1372612472.13762.18.camel@miguel-MacBookPro>
On Sun, 30 Jun 2013 18:14:32 +0100, Miguel Negrão wrote:
[...]
> Now I was testing retrieving a snapshot back from the backup disk to the
> original partition:
>
> If I do
>
> btrfs subvolume delete @-backupOld
>
> and then do
>
> btrfs send
> -p /media/miguel/huge/backups/@/@-backupNew /media/miguel/huge/backups/@/@-backupOld | pv | btrfs receive/mnt/backups
>
> I get an error:
>
> ERROR: could not find parent subvolume
>
> Sending via files instead of pipes I can see the error is in btrfs
> receive, the btrfs send completes without errors.
>
> Is it what I'm trying to do not possible ? I'm I using the wrong
> syntax ? It would be really handy to be able to do this, to make it easy
> to go to an old snapshot without having to transfer it in it's full
> size, instead transferring just the diff.
What you are trying to do is not possible, it is not supported.
Btrfs send/receive can be used to create backups. The use case to
restore from backups is not addressed.
next prev parent reply other threads:[~2013-07-01 15:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-30 17:14 btrfs send /receive : having problems sending a snapshot back to the original partition Miguel Negrão
2013-07-01 15:50 ` Stefan Behrens [this message]
2013-07-02 9:56 ` Miguel Negrão
2013-07-02 12:05 ` Stefan Behrens
2013-07-03 10:11 ` Miguel Negrão
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