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Date: Tue, 5 Mar 2002 23:49:08 -0800
From: Mike Fedyk <mfedyk@matchmail.com>
To: Michael Cheung <vividy@justware.co.jp>
Cc: linux-kernel@vger.kernel.org
Subject: Re: mount -o remount,ro cause error "device is busy"
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On Wed, Mar 06, 2002 at 04:40:10PM +0900, Michael Cheung wrote:
> hi, all;
> 	I have upgraded my kernel to version 2.4.
> And i have tested 2.4.16 and 2.4.18. Both of these
> two version have the same problem when system reboot.
> "/: device is busy";
> in shutdown script:
> umount -a
> mount -n -o ro,remount /
> these two line result error: device is busy.
> 

We need more info about your config.  Do you have any patches in this
kernel?  What modules have been loaded?  Highmem?  x86?  drive controller?
drive? ram size? lspci output, etc...
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