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Date: Wed, 12 Aug 2009 16:14:21 +0200
From: Andi Kleen <andi@firstfloor.org>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Andi Kleen <andi@firstfloor.org>, David Dillow <dave@thedillows.org>,
       Greg KH <greg@kroah.com>, Greg KH <gregkh@suse.de>,
       Alan Cox <alan@lxorguk.ukuu.org.uk>, linux-kernel@vger.kernel.org,
       Kay Sievers <kay.sievers@vrfy.org>, Jan Blunck <jblunck@suse.de>,
       Harald Hoyer <harald@redhat.com>,
       Scott James Remnant <scott@ubuntu.com>
Subject: Re: [PATCH] Driver Core: devtmpfs - kernel-maintained tmpfs-based
	/dev
Message-ID: <20090812141421.GG28848@basil.fritz.box>
References: <87ljlxhrnr.fsf@basil.nowhere.org> <1249575658.19886.8.camel@lap75545.ornl.gov> <20090806183147.GA28409@suse.de> <1249772876.22248.34.camel@obelisk.thedillows.org> <20090810153943.GB7652@kroah.com> <1250001374.22248.65.camel@obelisk.thedillows.org> <20090811145523.GD14368@basil.fritz.box> <1250036727.26788.7.camel@obelisk.thedillows.org> <20090812073152.GB28848@basil.fritz.box> <20090812070759.2b9c1f32@infradead.org>
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On Wed, Aug 12, 2009 at 07:07:59AM -0700, Arjan van de Ven wrote:
> On Wed, 12 Aug 2009 09:31:52 +0200
> Andi Kleen <andi@firstfloor.org> wrote:
> 
> > > So use Eric/Arjan's program that does it in 60ms -- you get a
> > > dynamic /dev, no initrd, fast boot, and no kernel changes required.
> > 
> > That would likely need initrd at least on the distro I use which uses
> > device files very early.
> 
> nah just need to call it early in /etc/rc.sysinit.
> 
> initrd is a read herring; distros don't need an initrd
> (well except fedora who ship borken with a /dev without
> even /dev/console)

SUSE has the same problem. If the on disk /dev is empty
and it typically is out of the box then and there's no
initrd you don't boot.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only.