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Re: Switching from (deprecated) IDE driver -> SATA (PATA support)

To: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>
Subject: Re: Switching from (deprecated) IDE driver -> SATA (PATA support)
From: Bill Davidsen <davidsen@xxxxxxx>
Date: Sun, 25 Jan 2009 16:13:23 -0500
Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>, linux-ide@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx
In-reply-to: <alpine.DEB.1.10.0901250726530.10805__44823.8515914001$1232890466$gmane$org@xxxxxxxxxxxxxxxx>
Newsgroups: gmane.linux.kernel
References: <alpine.DEB.1.10.0901250553430.2441@xxxxxxxxxxxxxxxx> <20090125110742.4ba54c0b@xxxxxxxxxxxxxxxxxxx> <alpine.DEB.1.10.0901250705300.6888@xxxxxxxxxxxxxxxx> <alpine.DEB.1.10.0901250715030.10379@xxxxxxxxxxxxxxxx> <alpine.DEB.1.10.0901250726530.10805__44823.8515914001$1232890466$gmane$org@xxxxxxxxxxxxxxxx>
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.19) Gecko/20081217 Fedora/1.1.14-1.fc9 pango-text SeaMonkey/1.1.14
Justin Piszcz wrote:


On Sun, 25 Jan 2009, Justin Piszcz wrote:



On Sun, 25 Jan 2009, Justin Piszcz wrote:



On Sun, 25 Jan 2009, Alan Cox wrote:

Easiest is to use labels. Old ide will keep hda,b,c,d constant
providing you have interfaces using the legacy IDE port mappings (0x1f0
and 0x170). Libata doesn't do that as pretty much every distribution had already switched to volume labels, and the user space can do the job far
better than the kernel - especially as the newer devices with modern
interfaces don't have the old BIOS/DOS legacy ideas any more.

Mount by label also means you can flip back and forth between the
different drivers and kernel revisions.

Alan

It comes with one :)
# xfs_admin -u  /dev/sdd2
UUID = 77ae4251-631f-4656-a365-c5723f5c5da8

Will try to use this to boot; however, I'd prefer the labels over the UUID, wish there was an easy way to set it.

Justin.

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One final question, without udev, how does one determine the UUID of a non-XFS
partition, e.g., swap?

One uses blkid. Which suggests that you can solve your name problem by not using names and switching to UUID.


--
Bill Davidsen <davidsen@xxxxxxx>
  "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot

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