linux-kernel - Re: [patch 1/2] [RFC] Simple tamper-proof device filesystem.

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Message-Id: <200712162036.JAJ09389.OQOVtOHMFLFSFJ@I-love.SAKURA.ne.jp>
Date:	Sun, 16 Dec 2007 20:36:12 +0900
From:	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
To:	david@...idnewall.com
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [patch 1/2] [RFC] Simple tamper-proof device filesystem.

Hello.

> > I meant that "/dev must be mounted for read-write mode"
> 
> Again, why?

You can mount / partition for read-only mode if you wish to do so.
But you cannot make /dev directory for read-only.
You won't be able to login to the system because /sbin/mingetty
fails to "chown/chmod" /dev/tty* if /dev is mounted for read-only mode.
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