Date: Sun, 8 Jun 2014 12:08:41 -0600 (MDT) From: Warren Block <wblock@wonkity.com> To: freebsd-questions@freebsd.org Subject: Re: The binary code is used in development of projects based on FreeBSD in Latvia? Message-ID: <alpine.BSF.2.00.1406081204490.11322@wonkity.com> In-Reply-To: <CAK_6RwckpNNdSTfKi_g=Y3Kb-_nN8_EK9_wtA_Wc=wUoBpZ2ZQ@mail.gmail.com> References: <CAK_6RwckpNNdSTfKi_g=Y3Kb-_nN8_EK9_wtA_Wc=wUoBpZ2ZQ@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sun, 8 Jun 2014, françai s wrote: > The binary code is used in development of projects based on FreeBSD in > Latvia? > I ask this because the University of Latvia and Riga Technical University > teach coding in binary code. > If these projects become part of the major BSD projects, maybe we will be > interested in coding in binary code. https://forums.freebsd.org/viewtopic.php?t=42856 From owner-freebsd-questions@FreeBSD.ORG Sun Jun 8 18:16:03 2014 Return-Path: <owner-freebsd-questions@FreeBSD.ORG> Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id D3F457C9 for <freebsd-questions@freebsd.org>; Sun, 8 Jun 2014 18:16:03 +0000 (UTC) Received: from mail.cyberleo.net (mtumishi.cyberleo.net [216.226.128.201]) by mx1.freebsd.org (Postfix) with ESMTP id B0C992C09 for <freebsd-questions@freebsd.org>; Sun, 8 Jun 2014 18:16:03 +0000 (UTC) Received: from [172.16.44.4] (vitani.den.cyberleo.net [216.80.73.130]) by mail.cyberleo.net (Postfix) with ESMTPSA id 77B476DDE; Sun, 8 Jun 2014 14:09:19 -0400 (EDT) Message-ID: <5394A6DD.1000009@cyberleo.net> Date: Sun, 08 Jun 2014 13:09:33 -0500 From: CyberLeo Kitsana <cyberleo@cyberleo.net> User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: Matthias Petermann <matthias@petermann-it.de>, freebsd-questions@freebsd.org Subject: Re: Stability of unionfs - general recommendation? References: <20140606103523.Horde.M-arxGpaecCk8BW2FZ_pXQ7@d2ux.org> In-Reply-To: <20140606103523.Horde.M-arxGpaecCk8BW2FZ_pXQ7@d2ux.org> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: User questions <freebsd-questions.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-questions>, <mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions/>; List-Post: <mailto:freebsd-questions@freebsd.org> List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, <mailto:freebsd-questions-request@freebsd.org?subject=subscribe> X-List-Received-Date: Sun, 08 Jun 2014 18:16:03 -0000 On 06/06/2014 03:35 AM, Matthias Petermann wrote: > Hello, > > I'm planning a new server for the purpose of hosting multiple Jails. > Each jail will get a dedicated UFS2 filesystem sourced from gvinum volumes. > To make maintenance of the Jail base installation more efficient I consider > to mount the dedicated filesystem(s) as an overlay above the base > installation. > > Here is where unionfs comes into play as it provides these capabilities. > > My internet research yielded some questionable results on the stability of > unionfs. I understood there was an "old" implementation and a "newer" one > introduced in FreeBSD 6.3[1]. > > Anyway - I'm curious if someone has a similiar setup running and can > provide > me some advice when to use unionfs and when not. > > > Thanks in advance & kind regards, > Matthias > > > [1] http://people.freebsd.org/~daichi/unionfs/ I use it extensively in jailed hosting on 9.x and 10.x, but only for certain directories. It works perfectly fine for my use case. To elaborate, I have a single prepared base tree null-mounted read-only as root for each jail; upon this, things like /var, /home, and /usr/local are null-mounted read-write from jail-specific directories, as these are fully under control of the jail. I also have /etc mounted from a jail-specific directory, as a union over the base /etc, because the vast majority of the files in /etc will never be changed except upon an upgrade, and everything else is changed solely by root. To my knowledge, unionfs only seems to cause problems when permissions come into play, or when you do things like running autotools on it, as it does break certain critical expectations. -- Fuzzy love, -CyberLeo Technical Administrator CyberLeo.Net Webhosting http://www.CyberLeo.Net <CyberLeo@CyberLeo.Net> Furry Peace! - http://www.fur.com/peace/
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?alpine.BSF.2.00.1406081204490.11322>