From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.workshopit.co.uk ([93.191.37.100]:54017 "EHLO mx1.workshopit.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754166Ab2JHROv (ORCPT ); Mon, 8 Oct 2012 13:14:51 -0400 Received: from campbell-lange.net ([93.191.37.68]) by mx1.workshopit.co.uk with esmtp (Exim 4.72) (envelope-from ) id 1TLGCp-0000ZP-Bx for linux-btrfs@vger.kernel.org; Mon, 08 Oct 2012 17:29:23 +0100 Received: from 46-65-49-47.zone16.bethere.co.uk ([46.65.49.47] helo=orchard) by campbell-lange.net with esmtpsa (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1TLGDh-0008NN-2h for linux-btrfs@vger.kernel.org; Mon, 08 Oct 2012 17:30:17 +0100 Received: from rory by orchard with local (Exim 4.80) (envelope-from ) id 1TLGDb-0005wd-1Y for linux-btrfs@vger.kernel.org; Mon, 08 Oct 2012 17:30:11 +0100 Date: Mon, 8 Oct 2012 17:30:10 +0100 From: Rory Campbell-Lange To: linux-btrfs@vger.kernel.org Subject: btrfs receive to subdirectory Message-ID: <20121008163010.GA22763@campbell-lange.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-btrfs-owner@vger.kernel.org List-ID: I can send snapshots to , but not /. Please advise if what I am doing is incorrect. Rory Format usb3 disk and mount root@orchard:/bkp# mkfs.btrfs /dev/sdb1 > WARNING! - Btrfs v0.20-rc1-37-g91d9eec IS EXPERIMENTAL > WARNING! - see http://btrfs.wiki.kernel.org before using > fs created label (null) on /dev/sdb1 > nodesize 4096 leafsize 4096 sectorsize 4096 size 698.64GB > Btrfs v0.20-rc1-37-g91d9eec mount /dev/sdb1 /mnt Create snapshots on /bkp share root@orchard:/bkp# btrfs subvolume snapshot -r subvol snaps/snap_081012_1715 > Create a readonly snapshot of 'subvol' in 'snaps/snap_081012_1715' root@orchard:/bkp# mutt -f subvol/INBOX/ > 1561 kept, 18 deleted. root@orchard:/bkp# btrfs subvolume snapshot -r subvol snaps/snap_081012_1716 > Create a readonly snapshot of 'subvol' in 'snaps/snap_081012_1716' Send base backup to /mnt root@orchard:/bkp# btrfs send snaps/snap_081012_1715 | btrfs receive /mnt > At subvol snaps/snap_081012_1715 > At subvol snap_081012_1715 Send incremental backup to /mnt root@orchard:/bkp# btrfs send -p snaps/snap_081012_1715 \ snaps/snap_081012_1716 | btrfs receive /mnt > At subvol snaps/snap_081012_1716 > At snapshot snap_081012_1716 root@orchard:/bkp# ls /mnt snap_081012_1715 snap_081012_1716 Results: root@orchard:/bkp# btrfs subvolume list /bkp > ID 259 gen 62 top level 5 path subvol > ID 278 gen 60 top level 5 path snaps/snap_081012_1715 > ID 279 gen 62 top level 5 path snaps/snap_081012_1716 root@orchard:/bkp# btrfs subvolume list /mnt > ID 256 gen 8 top level 5 path snap_081012_1715 > ID 259 gen 9 top level 5 path snap_081012_1716 Restart: root@orchard:/bkp# btrfs subvolume del /mnt/snap_081012_171* > Delete subvolume '/mnt/snap_081012_1715' > Delete subvolume '/mnt/snap_081012_1716' Try and snap to /mnt/ root@orchard:/bkp# mkdir /mnt/snaps root@orchard:/bkp# btrfs send snaps/snap_081012_1715 | btrfs receive /mnt/snaps > At subvol snaps/snap_081012_1715 > At subvol snap_081012_1715 root@orchard:/bkp# btrfs send -p snaps/snap_081012_1715 \ snaps/snap_081012_1716 | btrfs receive /mnt/snaps > At subvol snaps/snap_081012_1716 > At snapshot snap_081012_1716 > ERROR: open snaps/snap_081012_1715 failed. No such file or directory root@orchard:/bkp# ls /mnt/snaps > snap_081012_1715 -- Rory Campbell-Lange rory@campbell-lange.net