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Date: Mon, 30 Oct 2000 15:26:42 -0800
From: "H. Peter Anvin" <hpa@transmeta.com>
Organization: Transmeta Corporation
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To: David Woodhouse <dwmw2@infradead.org>
CC: "H. Peter Anvin" <hpa@zytor.com>, linux-kernel@vger.kernel.org
Subject: Re: / on ramfs, possible?
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David Woodhouse wrote:
> 
> On 29 Oct 2000, H. Peter Anvin wrote:
> 
> > > I want my / to be a ramfs filesystem. I intend to populate it from an
> > > initrd image, and then remount / as the ramfs filesystem. Is that at
> > > all possible? The way I see it the kernel requires / on a device
> > > (major,minor) or nfs.
> > >
> > > Am I out of luck using ramfs as /? If it's easy to fix, how do I fix it?
> > >
> >
> > Use pivot_root instead of the initrd stuff in /proc/sys.
> 
> Urgh. Then you're still using an initrd, and you still have to include all
> the crap necessary to support those horrid block-device thingies.
> 
> Why not just use a ramdisk?
> 

Pardon?!  This doesn't make any sense...

The question was: how do switch from the initrd to using the ramfs as /? 
Using pivot_root should do it (after the pivot, you can of course nuke
the initrd ramdisk.)

	-hpa

-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt
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