From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932180AbVKFRYn (ORCPT ); Sun, 6 Nov 2005 12:24:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932187AbVKFRYn (ORCPT ); Sun, 6 Nov 2005 12:24:43 -0500 Received: from zproxy.gmail.com ([64.233.162.201]:25069 "EHLO zproxy.gmail.com") by vger.kernel.org with ESMTP id S932180AbVKFRYm convert rfc822-to-8bit (ORCPT ); Sun, 6 Nov 2005 12:24:42 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=Ox6R8JJhFcREEd5h7H4rrRH0/e/hfYwoUpNrWhM7muxE1+lHl8vQBDQNGT1gA7905E3wNfFq27UWMkZJ1yytEn86QPGVeZM5XkZ4TcFqYTh18brLbqWBmk4CzTIWr5paW7qamShr8sWs4exTh5zigUpaIh1y2BKH/T96Kl082A8= Message-ID: <8413367b0511060924s550024b8w1113564cd6bb9340@mail.gmail.com> Date: Sun, 6 Nov 2005 18:24:39 +0100 From: To: linux-kernel@vger.kernel.org Subject: Whys and hows of initrds MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, I don't know if the LKML is a technical kernel development list or a newbie support list (or both?) so maybe I'm posting to the wrong place. Questions: * Why is an initrd needed? * What does it do? * What are the differences between an initrd and an initramdisk (if any)? And an initramfs? * Why cannot the task of initrds be done more easily? * Why don't other operating systems need an equivalent? Or do they? Opinions and technical explanations welcome. Please, no excessive flames! I have searched the FAQs, HOWTOs and guides on tldp.org, but it seems to me there is no "initrd FAQ". If I just didn't find it then I welcome any pointers and sorry for wasting time...