linux-kernel - Re: [-v3 PATCH 0/3] Persistent device name using alias

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Message-ID: <16628.1314734537@turing-police.cc.vt.edu>
Date:	Tue, 30 Aug 2011 16:02:17 -0400
From:	Valdis.Kletnieks@...edu
To:	Nao Nishijima <nao.nishijima.xt@...achi.com>
Cc:	Tejun Heo <tj@...nel.org>, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org, Jens Axboe <axboe@...nel.dk>,
	James.Bottomley@...senPartnership.com,
	dle-develop@...ts.sourceforge.net,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	yrl.pp-manager.tt@...achi.com, kay.sievers@...il.com
Subject: Re: [-v3 PATCH 0/3] Persistent device name using alias

On Sat, 27 Aug 2011 21:54:29 +0900, Nao Nishijima said:

> A kernel device names (e.g. sda) is not useful information because it
> doesn't always point the same disk at each boot-up time.

If this is important to you, can't you use a udev rule, similar to what most
distros already stick in 70-persistent-net.rules and 70-persistent-cd.rules?

(Yes, this *does* involve finding a UUID or label or  something on the disk
that you can identify as "same entity as last time".


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