From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from magic.merlins.org ([209.81.13.136]:58448 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751395AbeCEQQY (ORCPT ); Mon, 5 Mar 2018 11:16:24 -0500 Date: Mon, 5 Mar 2018 08:16:19 -0800 From: Marc MERLIN To: linux-btrfs , fdmanana@gmail.com Message-ID: <20180305161619.prnkl4q4zcyibzhc@merlins.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: How to change/fix 'Received UUID' Sender: linux-btrfs-owner@vger.kernel.org List-ID: Howdy, I did a bunch of copies and moving around subvolumes between disks and at some point, I did a snapshot dir1/Win_ro.20180205_21:18:31 dir2/Win_ro.20180205_21:18:31 As a result, I lost the ro flag, and apparently 'Received UUID' which is now preventing me from restarting the btrfs send/receive. I changed the snapshot back to 'ro' but that's not enough: Source: Name: Win_ro.20180205_21:18:31 UUID: 23ccf2bd-f494-e348-b34e-1f28486b2540 Parent UUID: - Received UUID: 3cc327e1-358f-284e-92e2-4e4fde92b16f Creation time: 2018-02-15 20:14:42 -0800 Subvolume ID: 964 Generation: 4062 Gen at creation: 459 Parent ID: 5 Top level ID: 5 Flags: readonly Dest: Name: Win_ro.20180205_21:18:31 UUID: a1e8777c-c52b-af4e-9ce2-45ca4d4d2df8 Parent UUID: - Received UUID: - Creation time: 2018-02-17 22:20:25 -0800 Subvolume ID: 94826 Generation: 250714 Gen at creation: 250540 Parent ID: 89160 Top level ID: 89160 Flags: readonly If I absolutely know that the data is the same on both sides, how do I either 1) force back in a 'Received UUID' value on the destination 2) force a btrfs receive to work despite the lack of matching 'Received UUID' Yes, I could discard and start over, but my 2nd such subvolume is 8TB, so I'd really rather not :) Any ideas? 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/ | PGP 7F55D5F27AAF9D08