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Date: Sun, 14 Aug 2016 13:10:34 +0200 From: Pavel Machek <pavel@....cz> To: Tom Yan <tom.ty89@...il.com>, linux-scsi@...r.kernel.org Cc: kernel list <linux-kernel@...r.kernel.org>, james harvey <jamespharvey20@...il.com>, regressions@...mhuis.info, hdegoede@...hat.com, Tejun Heo <tj@...nel.org>, linux-ide@...r.kernel.org, gregkh@...uxfoundation.org, linux-usb@...r.kernel.org, Oliver Neukum <oliver@...kum.org>, Alan Stern <stern@...land.harvard.edu> Subject: Re: Regression - SATA disks behind USB ones on v4.8-rc1, breaking boot. [Re: Who reordered my disks (probably v4.8-rc1 problem)] Hi! On Sun 2016-08-14 18:17:39, Tom Yan wrote: > On 14 August 2016 at 18:07, Tom Yan <tom.ty89@...il.com> wrote: > > On 14 August 2016 at 18:01, Pavel Machek <pavel@....cz> 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
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