From: "Stefan Lippers-Hollmann" <s.L-H@gmx.de>
To: Larry Finger <Larry.Finger@lwfinger.net>
Cc: bcm43xx-dev@lists.berlios.de, Michael Buesch <mb@bu3sch.de>,
"linux-wireless" <linux-wireless@vger.kernel.org>
Subject: Re: [PATCH RFC] ssb: Generic SPROM override for devices without SPROM
Date: Fri, 20 Nov 2009 15:34:49 +0100 [thread overview]
Message-ID: <200911201534.51602.s.L-H@gmx.de> (raw)
In-Reply-To: <4B06A233.2070708@lwfinger.net>
Hi
On Friday 20 November 2009, Larry Finger wrote:
> On 11/20/2009 05:12 AM, Michael Buesch wrote:
[...]
> You might look at the "root=" part of /proc/cmdline. Mine says
> "root=/dev/disk/by-id/ata-TOSHIBA_MK2546GSX_18C2P0KCT-part1". That disk serial
> number would certainly be unique. Even if it just said "root=/dev/sda1", it
> would be repeatable.
[...]
"by-id" has the disadvantage that it changes with the means of accessing
the disk, namely if your driver uses the old (obsolete) ide API or is a new
libata driver.
Technically only "by-uuid" is relatively guaranteed to be stable (unless a
partition gets cloned with dd), with "by-label" coming close (only bad if
any disk or USB storage device duplicates an existing label, like "root").
Regards
Stefan Lippers-Hollmann
next prev parent reply other threads:[~2009-11-20 14:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-20 11:12 [PATCH RFC] ssb: Generic SPROM override for devices without SPROM Michael Buesch
2009-11-20 11:38 ` Florian Fainelli
2009-11-20 11:44 ` Michael Buesch
2009-11-20 14:05 ` Larry Finger
2009-11-20 14:11 ` Michael Buesch
2009-11-20 14:16 ` Florian Fainelli
2009-11-20 14:51 ` Larry Finger
2009-11-20 17:19 ` Larry Finger
2009-11-20 14:34 ` Stefan Lippers-Hollmann [this message]
2009-11-20 14:50 ` Ehud Gavron
2009-11-20 14:55 ` Larry Finger
2009-11-24 8:51 ` Oncaphillis
2009-11-24 10:52 ` Michael Buesch
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