From owner-freebsd-questions Thu Jul 23 05:06:10 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id FAA05526 for freebsd-questions-outgoing; Thu, 23 Jul 1998 05:06:10 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from gateway.blueberry.co.uk (gateway.blueberry.co.uk [195.153.48.66]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id FAA05505 for ; Thu, 23 Jul 1998 05:06:03 -0700 (PDT) (envelope-from keith@blueberry.co.uk) Received: from intranet.blueberry.co.uk (intranet.internal.blueberry.co.uk [10.0.0.2]) by gateway.blueberry.co.uk (8.8.8/8.8.8) with ESMTP id NAA01286; Thu, 23 Jul 1998 13:05:35 +0100 (BST) (envelope-from keith@blueberry.co.uk) Received: (from keith@localhost) by intranet.blueberry.co.uk (8.8.8/8.8.8) id NAA15059; Thu, 23 Jul 1998 13:10:00 +0100 (BST) (envelope-from keith) Message-ID: <19980723131000.06052@blueberry.co.uk> Date: Thu, 23 Jul 1998 13:10:00 +0100 From: Keith Jones To: David Nunn Cc: questions@FreeBSD.ORG Subject: Re: 2.2.6 kernel with 2.2.5 system? References: <3.0.1.32.19980723121625.006a1cc8@192.168.29.10> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.89i In-Reply-To: <3.0.1.32.19980723121625.006a1cc8@192.168.29.10>; from David Nunn on Thu, Jul 23, 1998 at 12:16:25PM +0100 Organization: Blueberry New Media Ltd. Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, Jul 23, 1998 at 12:16:25PM +0100, David Nunn wrote: > I know this is a astrange request, but can I use a 2.2.6 kernel ona 2.2.5 > system? We are currently running a 2.2.5 system in the office as a dialup > server (dial-on-demand for the rest of the office which are on '95), and > are upgrading from standard modem to ISDN. BT has supplied all the kit, but > I need to recompile a kernel to change the serial port settings. > > The original sysadmin never installed the sources for the kernel, and so I > am stuck with a 2.2.5 system and 2.2.6 kernel sources. Upgrading is not an > option since the office cannot afford that amount of downtime on this, the > only connection to the internet they have. > > Can anyone help? (Please CC any replies to me personally) I don't know if that would work, but if you're running 2.2.5 you may ideally want to be running 2.2.6 or 2.2.7 anyway....? One possibility is to download _all_ the sources for 2.2.6 (or, more likely, 2.2.7), make world, rebuild the kernel and reboot. Total downtime: about two minutes. It's not exactly a 'safe' option, since you're installing binaries in multi-user mode over existing binaries that other users and processes may use frequently. (e.g., if 'make' is halfway through upgrading pppd and someone dials in it's quite possible that pppd will crash - however if they try again a few seconds later it's very likely that they will get through okay). However if I was an end user I'd rather have the odd inconsistencies cropping up over the space of, say, an hour, than have no server at all for a quarter of that time. Keith -- v Keith Jones Systems Manager, Blueberry New Media Ltd. v | Postal Mail: 2/10 Harbour Yard, Chelsea Harbour, LONDON, UK. SW10 0XD | | Telephone: +44 (0)171 351 3313 Fax: +44 (0)171 351 2476 | ^ Email: Keith.Jones@blueberry.co.uk WWW: http://www.blueberry.co.uk/ ^ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message