From owner-freebsd-emulation@FreeBSD.ORG Tue Mar 2 20:06:04 2010 Return-Path: Delivered-To: freebsd-emulation@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CDD83106566B; Tue, 2 Mar 2010 20:06:04 +0000 (UTC) (envelope-from lists@jnielsen.net) Received: from ns1.jnielsen.net (ns1.jnielsen.net [69.55.238.237]) by mx1.freebsd.org (Postfix) with ESMTP id 98B028FC27; Tue, 2 Mar 2010 20:06:04 +0000 (UTC) Received: from jnielsen.socialserve.com ([12.53.251.10]) (authenticated bits=0) by ns1.jnielsen.net (8.12.9p2/8.12.9) with ESMTP id o22K63pf013402; Tue, 2 Mar 2010 15:06:03 -0500 (EST) (envelope-from lists@jnielsen.net) From: John Nielsen To: Andrew Hotlab Date: Tue, 2 Mar 2010 15:05:57 -0500 User-Agent: KMail/1.12.4 (Darwin/9.8.0; KDE/4.3.4; i386; ; ) References: In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201003021505.57820.lists@jnielsen.net> X-Virus-Scanned: ClamAV version 0.88.4, clamav-milter version 0.88.4 on ns1.jnielsen.net X-Virus-Status: Clean Cc: freebsd-emulation@freebsd.org, freebsd-jail@freebsd.org Subject: Re: linux-only jail possible? X-BeenThere: freebsd-emulation@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Development of Emulators of other operating systems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Mar 2010 20:06:04 -0000 On Tuesday 02 March 2010 14:52:24 Andrew Hotlab wrote: > ---------------------------------------- > > > From: lists@jnielsen.net > > To: freebsd-emulation@freebsd.org > > Date: Tue, 2 Mar 2010 13:25:27 -0500 > > CC: freebsd-jail@freebsd.org > > Subject: linux-only jail possible? > > > > Has anyone tried to run a jail containing only Linux binaries? I need a > > lightweight VM-ish solution to run an arbitrary number of test/dev/demo > > servers (apache + python mostly) but would like it to be reasonably > > close to the "real" servers (running Linux) in terms of software > > installation and maintenance, etc. (Moving the whole show over to > > FreeBSD is a battle for another day..) > > > > If you have attempted something like this I'd love to hear from you. > > I didn't attempt that but, if I can make a suggestion, I would never > spend time in making a Linux userland run on a BSD kernel while I can > run Linux binaries directly on FreeBSD using the Linux ABI > (http://www.freebsd.org/handbook/linuxemu.html). I heard about a project > that aims to do what you are looking for > (http://www.debian.org/ports/kfreebsd-gnu), but I do not know at what > stage it is. My plan IS to run Linux binaries directly on FreeBSD using the Linux ABI. I just want to do it in jails. Since all the software I plan to run in the jails will be Linux, I'm wondering if I can get away without using anything else. The debian port is something else. Even if it has jails support it's not mature enough for what I have in mind and I'd like the FreeBSD host to be real FreeBSD. > My genuine suggestion is to spend time to advocate BSD and persuade your > company to "move the whole show on it"! ... please note that this > suggestion is coming from a multi-certified Microsoft specialist! ;) My boss is actually a proponent of FreeBSD as well, but there are many man- hours invested in getting the current infrastructure to work smoothly (which it does), and we don't have the time or the motivation to do a wholesale switchover at this point. A gradual switch is more likely, especially once some things like SUJ have time to mature in the tree. R, JN