From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753377AbbIQSkk (ORCPT ); Thu, 17 Sep 2015 14:40:40 -0400 Received: from a.ns.miles-group.at ([95.130.255.143]:11949 "EHLO radon.swed.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752696AbbIQSkh (ORCPT ); Thu, 17 Sep 2015 14:40:37 -0400 Subject: Re: Failover root devices To: Austin S Hemmelgarn , Richard Weinberger , Drew DeVault References: <55FAA6BB.3060008@odi.ch> <20150917114955.GA2600@homura> <55FB087C.1050105@gmail.com> Cc: =?UTF-8?Q?Ortwin_Gl=c3=bcck?= , "linux-kernel@vger.kernel.org" From: Richard Weinberger Message-ID: <55FB0923.30505@nod.at> Date: Thu, 17 Sep 2015 20:40:35 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 MIME-Version: 1.0 In-Reply-To: <55FB087C.1050105@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am 17.09.2015 um 20:37 schrieb Austin S Hemmelgarn: > On 2015-09-17 13:47, Richard Weinberger wrote: >> On Thu, Sep 17, 2015 at 1:49 PM, Drew DeVault wrote: >>> On 2015-09-17 1:40 PM, Ortwin Glück wrote: >>>> You can do that completely in user space from an initramfs. >>> >>> Yep, I'm aware of that. I think it would still be useful for the kernel >>> to support it. Bonus - if the kernel supports it, there's a standard way >>> of doing it that would propegate down to the various initramfs designs >>> of the distros without having me write patches against all of them. >>> Right? >> >> I really don't see why we need this feature in-kernel as it can be >> done perfectly fine >> in userspace. Every non-trivial system needs an initramfs anyway these days. >> > Ha, not unless you're using systemd. I have more than 2 dozen servers with complex setups that boot just fine without an initramfs. Yes there is more setup done in initramfs > these days, but it's still not actually needed in most cases except complicated storage setups. I really don't count root=UUID... or root=LABEL... as complicated storage setup... Thanks, //richard