From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751166AbWGKSCR (ORCPT ); Tue, 11 Jul 2006 14:02:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751165AbWGKSCQ (ORCPT ); Tue, 11 Jul 2006 14:02:16 -0400 Received: from hobbit.corpit.ru ([81.13.94.6]:1626 "EHLO hobbit.corpit.ru") by vger.kernel.org with ESMTP id S1751166AbWGKSCP (ORCPT ); Tue, 11 Jul 2006 14:02:15 -0400 Message-ID: <44B3E7A2.1070102@tls.msk.ru> Date: Tue, 11 Jul 2006 22:02:10 +0400 From: Michael Tokarev Organization: Telecom Service, JSC User-Agent: Mail/News 1.5 (X11/20060318) MIME-Version: 1.0 To: Olaf Hering CC: "H. Peter Anvin" , Roman Zippel , torvalds@osdl.org, klibc@zytor.com, linux-kernel@vger.kernel.org Subject: Re: [klibc] klibc and what's the next step? References: <20060711044834.GA11694@suse.de> <44B37D9D.8000505@tls.msk.ru> <20060711112746.GA14059@suse.de> <44B3D0A0.7030409@zytor.com> <20060711164040.GA16327@suse.de> <44B3E3E0.1050100@tls.msk.ru> <20060711175249.GA16869@suse.de> In-Reply-To: <20060711175249.GA16869@suse.de> X-Enigmail-Version: 0.94.0.0 OpenPGP: id=4F9CF57E Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Olaf Hering wrote: > On Tue, Jul 11, Michael Tokarev wrote: > >> Olaf Hering wrote: >> [] >>> To create the initrd you needed a loop file, at least for ext2, minix etc. >> It's just damn trivial to pack your files into cpio archive and gzip it. > > The point is not how trivial it is. The point is how much has to change > that you can run 2.6.42 on an 42 year old installation with the tools > that were available at that time. I'd say you've ZERO chance to run just new kernel. You will need more recent glibc, never softraid tools, you will discover that /dev/hdXX are all gone, and so on. > Obiviously you cant be bothered to install newer packages, like kinit.rpm. > Basic backwards compatibilty. Its not a term from the klingon dictionary. Well. I'd say it's not that obvious. For example, I can't boot redhat-6.0 system with current 2.6 kernel (I once tried that, probably with 2.6.9 or something - there were quite.. some problems. Upgrading several packages, including glibc compiled against 2.6 kernel, solved that. Some stuff was still broken, but I didn't try hard). BTW, devfs is just one example... try to boot a one-year-old gentoo distro (not 42, but 1) with current 2.6 without devfs... ;) Another point is: why the heck you want to boot such 42-years-old system with current "best, grestest" kernel, anyway? > Btw, kinit is already taken, some kerberos thing. Heh. Yes it is. /mjt