From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from SD88.btc-net.bg ([212.39.90.88]:54148 "HELO sd88.btc-net.bg" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1757473AbaDXRo0 convert rfc822-to-8bit (ORCPT ); Thu, 24 Apr 2014 13:44:26 -0400 From: =?UTF-8?B?0J/Qu9Cw0LzQtdC9INCf0LXRgtGA0L7Qsg==?= To: "'Marc MERLIN'" Cc: References: <000001cf5f19$ac92b2b0$05b81810$@petrovi.no-ip.info> <20140423185413.GF26949@merlins.org> <001401cf5f27$17cae590$4760b0b0$@petrovi.no-ip.info> <20140423191546.GG26949@merlins.org> <000501cf5fe1$55198590$ff4c90b0$@petrovi.no-ip.info> <20140424173317.GI7884@merlins.org> In-Reply-To: <20140424173317.GI7884@merlins.org> Subject: RE: Can anyone boot a system using btrfs root with linux 3.14 or newer? Date: Thu, 24 Apr 2014 20:44:06 +0300 Message-ID: <000a01cf5fe4$ca59aad0$5f0d0070$@petrovi.no-ip.info> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Sender: linux-btrfs-owner@vger.kernel.org List-ID: > -----Original Message----- > From: Marc MERLIN [mailto:marc@merlins.org] > Sent: Thursday, April 24, 2014 8:33 PM > To: Пламен Петров > Cc: linux-btrfs@vger.kernel.org > Subject: Re: Can anyone boot a system using btrfs root with linux 3.14 or > newer? > > On Thu, Apr 24, 2014 at 08:19:21PM +0300, Пламен Петров wrote: > > I just realized that the l gave no way for identifying the particular bugzilla > entry. Here it is: > > https://bugzilla.kernel.org/show_bug.cgi?id=74261 > > Thanks. > > But to save us a lot more speculation, can you please try booting a linux > system (either initrd, or another one with a non btrfs root), and then trying > to mount that filesystem from the command line? Using 3.14.1 perhaps? I will try to do that now, but if I can't manage to do it today - expect the results tomorrow. One more detail I managed to rule out today is that my problematic filesystems used subvol-other-than-root as default, made like so: $ mount /dev/sda2 /sda2 -o relatime,compress=zlib,subvol=system-main-fs $ btrfs subvolume set-default system-main-fs /sda2 Only using different name for the subvolume. Anyway - its irrelevant. I formatted a fresh root as BTRFS, skipped the above, and tried booting 3.14.1 - result was kernel panic. So different default subvolume or not - its not the problem. --------------------------------- Plamen Petrov