linux-kernel - Re: Force a usb drive to be /dev/sda?

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Message-ID: <48521539.9020102@s5r6.in-berlin.de>
Date:	Fri, 13 Jun 2008 08:35:37 +0200
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	Shawn Jin <shawnxjin@...il.com>
CC:	Tomasz Chmielewski <mangoo@...g.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Force a usb drive to be /dev/sda?

Shawn Jin wrote:
>>  1. Mount filesystems by UUID or by label.
>>    Doesn't work with some filesystems.
> 
> The bootloader I'm using is LILO. So I have to specify the boot device
> and the root device in lilo.conf. For example, boot=/dev/sda,
> root=/dev/sda1. I'm not sure how mounting filesystem by UUID or by
> label can help. A little bit elaboration will be more helpful.

Ah I forgot that...  Looks like this requires an initrd too, though 
without special scripts of your own.

>>  2. Refer to devices by device ID or by device path.
...
> Every USB thumb drive has a unique ID. So will I have to have a
> different root filesystem image if it's install in a different usb
> drive if the by-id way is adopted?

That's right, hence a filesystem ID is preferable over a drive ID.
-- 
Stefan Richter
-=====-==--- -==- -==-=
http://arcgraph.de/sr/
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