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Date: Mon, 30 Jul 2001 16:49:15 -0400 (EDT)
From: Alexander Viro <viro@math.psu.edu>
To: Mike Touloumtzis <miket@bluemug.com>
cc: linux-kernel@vger.kernel.org, Linus Torvalds <torvalds@transmeta.com>,
        linux-fsdevel@vger.kernel.org
Subject: Re: [CFT] initramfs patch
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On Mon, 30 Jul 2001, Mike Touloumtzis wrote:

> On Mon, Jul 30, 2001 at 02:05:55AM -0400, Alexander Viro wrote:
> > 
> > The thing unpacks cpio archive (currently - linked into the kernel image)
> > on root ramfs and execs /init. After that we are in userland code. Said
> > code (source in init/init.c and init/nfsroot.c) emulates the vanilla
> > 2.4 behaviour. You can replace it with your own - that's just the default
> > that gives (OK, is supposed to give) a backwards-compatible behaviour.
> 
> One thing that would make embedded systems developers very happy
> is the ability to map a romfs or cramfs filesystem directly from
> the kernel image, avoiding the extra copy necessitated by the cpio
> archive.  Are there problems with this approach?

a) IIRC, both are read-only.
b) what stops you from doing initramfs + romfs-on-initrd? It works.

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