From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from plane.gmane.org ([80.91.229.3]:38490 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753309Ab3I2CKt (ORCPT ); Sat, 28 Sep 2013 22:10:49 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1VQ6T9-0007CY-UH for linux-btrfs@vger.kernel.org; Sun, 29 Sep 2013 04:10:47 +0200 Received: from cpc21-stap10-2-0-cust974.12-2.cable.virginmedia.com ([86.0.163.207]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 29 Sep 2013 04:10:47 +0200 Received: from m_btrfs by cpc21-stap10-2-0-cust974.12-2.cable.virginmedia.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 29 Sep 2013 04:10:47 +0200 To: linux-btrfs@vger.kernel.org From: Martin Subject: Re: Corrupt btrfs filesystem recovery... What best instructions? Date: Sun, 29 Sep 2013 03:10:37 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 In-Reply-To: Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 28/09/13 23:54, Martin wrote: > On 28/09/13 20:26, Martin wrote: > >> ... btrfsck bombs out with LOTs of errors... >> >> How best to recover from this? >> >> (This is a 'backup' disk so not 'critical' but it would be nice to avoid >> rewriting about 1.5TB of data over the network...) >> >> >> Is there an obvious sequence/recipe to follow for recovery? > > > I've got the drive reliably working with the sata limited to 3Gbit/s. > What is the best sequence to try to tidy-up and carry on with the 1.5TB > or so of data on there, rather than working from scratch? > > > So far, I've only run btrfsck since the corruption... So... Any options for btrfsck to fix things? Or is anything/everything that is fixable automatically fixed on the next mount? Or should: btrfs scrub /dev/sdX be run first? Or? What does btrfs do (or can do) for recovery? Advice welcomed, Thanks, Martin