From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754392Ab1JULE0 (ORCPT ); Fri, 21 Oct 2011 07:04:26 -0400 Received: from spaceboyz.net ([87.106.131.203]:52882 "EHLO spaceboyz.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754272Ab1JULEZ (ORCPT ); Fri, 21 Oct 2011 07:04:25 -0400 Date: Fri, 21 Oct 2011 13:04:18 +0200 From: David Lamparter To: Naohiro Aota Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [PATCH][RFC] ipconfig: Add new kernel parameter to force MAC address Message-ID: <20111021110418.GG651279@jupiter.n2.diac24.net> References: <878vofr2t9.fsf@elisp.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <878vofr2t9.fsf@elisp.net> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Oct 21, 2011 at 02:27:30AM +0900, Naohiro Aota wrote: > However it's not possible when you are using NFS root since the > kernel already set the random MAC address and you cannot change > it after system boot up process. Is there any particular reason you're not using an initramfs? Kernel autoconfiguration & NFS-root are relicts of old times, with an initramfs you can start a proper portmap/rpcbind daemon and use full regular NFS (v4 even). ... and you can change the MAC before bringing the interface up. -David