From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-f173.google.com ([209.85.220.173]:53472 "EHLO mail-qk0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753951AbdIZPCV (ORCPT ); Tue, 26 Sep 2017 11:02:21 -0400 Received: by mail-qk0-f173.google.com with SMTP id t184so10339740qke.10 for ; Tue, 26 Sep 2017 08:02:21 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: From: Eric Wolf <19wolf@gmail.com> Date: Tue, 26 Sep 2017 11:02:00 -0400 Message-ID: Subject: Re: rm: it is dangerous to operate recursively on '/data/Backup/@' (same as '/') To: linux-btrfs@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-btrfs-owner@vger.kernel.org List-ID: So somehow my @ and @home subvolumes became mounted at /data/Backup in addition to their normal locations (/ and /home). So when I used 'dd' I was outputting to my OS drive instead of my data pool. How did this happen? How do I undo it? I'll try restarting now, but I'll await further responses before replying to myself again. --- Eric Wolf (201) 316-6098 19wolf@gmail.com On Tue, Sep 26, 2017 at 10:41 AM, Eric Wolf <19wolf@gmail.com> wrote: > I accidentally filled my OS drive with a copy of itself? The problem > is, /data/ is a separate pool from the OS drive. And now it looks like > I can't erase it? I don't even know how I got here. All I did was "dd > if=/dev/sda of=/data/Backup/backup-new.img && mv > /data/Backup/backup-new.img /data/Backup/backup.img" I don't really > know where to go from here.