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From: Marc MERLIN <marc@merlins.org>
To: linux-btrfs@vger.kernel.org
Subject: Is there a lightweight copy from one subvolume to another?
Date: Fri, 24 Jan 2014 23:04:15 -0800	[thread overview]
Message-ID: <20140125070415.GB14998@merlins.org> (raw)

If I have 
/mnt/btrfs1/subvol1
/mnt/btrfs1/subvol2

Can I copy/move data from subvol1 to subvol2 without having to physically
copy all the blocks as if it were an entirely different filesystem?

reflink doesn't work for this:
gargamel [mc]# cp -av --reflink=always misc/olympic Video/misc/
`misc/olympic' -> `Video/misc/olympic'
`misc/olympic/file.avi' -> `Video/misc/olympic/file.avi'
cp: failed to clone `Video/misc/olympic/file.avi' from `misc/olympic/file.avi': Invalid cross-device link

Was there another way?

Thanks,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/  

             reply	other threads:[~2014-01-25  7:04 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-25  7:04 Marc MERLIN [this message]
     [not found] ` <CA+TwyweCeUQ7w5MuRLrfHfmJwDbChX5VodsyW8huQ9YuLOAWQA@mail.gmail.com>
2014-01-25  8:50   ` Fwd: Is there a lightweight copy from one subvolume to another? Maxdamantus
2014-01-25  9:17     ` Marc MERLIN
2014-01-25 16:49       ` Ken Drummond

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