From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ec2-54-200-0-65.us-west-2.compute.amazonaws.com ([54.200.0.65]:51621 "EHLO wecheer.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750879AbaA2V0z (ORCPT ); Wed, 29 Jan 2014 16:26:55 -0500 Received: from localhost (localhost [127.0.0.1]) by wecheer.com (Postfix) with ESMTP id 9465845451 for ; Wed, 29 Jan 2014 21:26:56 +0000 (UTC) Received: from wecheer.com ([127.0.0.1]) by localhost (ip-172-31-45-254.us-west-2.compute.internal [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id FK38EGGjYVOJ for ; Wed, 29 Jan 2014 21:26:54 +0000 (UTC) Received: from [10.10.22.177] (unknown [207.194.255.202]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: m) by wecheer.com (Postfix) with ESMTPSA id 70EB2432E4 for ; Wed, 29 Jan 2014 21:26:54 +0000 (UTC) Message-ID: <52E9721D.6000908@matthewlai.ca> Date: Wed, 29 Jan 2014 13:26:53 -0800 From: Matthew Lai MIME-Version: 1.0 To: linux-btrfs@vger.kernel.org Subject: Receive on same subvolume Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: Hello, Is this supposed to work? (/data is the root volume, /data/a is a subvolume) btrfs subvolume snapshot /data/a /data/b # make some changes in b btrfs send -p /data/a /data/b > delta btrfs receive /data/a < delta I'm getting "ERROR: could not find parent subvolume" on receive. What I'm trying to do is to back up using send/receive, but I don't have 50% free space, and (please correct me if I'm wrong) since receive doesn't do deduplication, I want to use snapshot to do the initial bootstrapping, instead of send/receive without a parent. Thanks! Matthew