From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933605AbcHNLKl (ORCPT ); Sun, 14 Aug 2016 07:10:41 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:44771 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933385AbcHNLKi (ORCPT ); Sun, 14 Aug 2016 07:10:38 -0400 Date: Sun, 14 Aug 2016 13:10:34 +0200 From: Pavel Machek To: Tom Yan , linux-scsi@vger.kernel.org Cc: kernel list , james harvey , regressions@leemhuis.info, hdegoede@redhat.com, Tejun Heo , linux-ide@vger.kernel.org, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, Oliver Neukum , Alan Stern Subject: Re: Regression - SATA disks behind USB ones on v4.8-rc1, breaking boot. [Re: Who reordered my disks (probably v4.8-rc1 problem)] Message-ID: <20160814111034.GA10616@amd> References: <20160813190340.GA29989@amd> <20160814092044.GA20392@amd> <20160814100102.GA31847@amd> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi! On Sun 2016-08-14 18:17:39, Tom Yan wrote: > On 14 August 2016 at 18:07, Tom Yan wrote: > > On 14 August 2016 at 18:01, Pavel Machek wrote: > >> > >> Since SATA support was merged, certainly since v2.4, and from way > >> before /dev/disk/by-id existed. > > > > I have no idea how "SATA before USB" had been done in the past (if it > > was ever a thing in the kernel), but that has not been the case since > > at least v3.0 AFAIR. It is the case in v4.6. We had change hda->sda for SATA drives long time ago, it was stable since that. > > No, but you can always use root=PARTUUID=, that's built into the > > kernel. (root=UUID= requires udev or so though). > > Silly me. root=UUID= has nothing to do with udev, but `blkid` in > util-linux. At least that's how it's done in Arch/mkinitcpio. I'd rather not mess with initrd, and initrd was not required in the past. kernel-parameters.txt only mentions UUID= in connection with resume. Is the documentation correct? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html