linux-kernel - Re: Use of directories to hold root?

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Message-ID: <Pine.LNX.4.64.0708122147440.28963@fbirervta.pbzchgretzou.qr>
Date:	Sun, 12 Aug 2007 21:49:02 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Mark Cannon <random.bits@...ers.com>
cc:	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org
Subject: Re: Use of directories to hold root?

On Aug 12 2007 15:39, Mark Cannon wrote:
>> >> No, but you can use pivot_root.
>> >
>> >Or better yet, use an initramfs with MS_MOVE; same as you would with the
>> >"normal" use of initramfs.
>
>I am not sure I understand initramfs with MS_MOVE concept. I will look into
>it. Any pointers for documentation? 

pivot_root is atomic afaict, for `mount --move` (which I think Al meant 
which MS_MOVE - or some C program using mount(2) of your own), you'd 
need multiple calls to mount.

	Jan
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