From owner-freebsd-arch@FreeBSD.ORG Sat Nov 29 14:07:49 2008 Return-Path: <owner-freebsd-arch@FreeBSD.ORG> Delivered-To: arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 48F5D1065672 for <arch@freebsd.org>; Sat, 29 Nov 2008 14:07:49 +0000 (UTC) (envelope-from rpaulo@gmail.com) Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.175]) by mx1.freebsd.org (Postfix) with ESMTP id D00EA8FC14 for <arch@freebsd.org>; Sat, 29 Nov 2008 14:07:48 +0000 (UTC) (envelope-from rpaulo@gmail.com) Received: by ug-out-1314.google.com with SMTP id 30so2128260ugs.39 for <arch@freebsd.org>; Sat, 29 Nov 2008 06:07:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:cc:message-id:from:to :in-reply-to:content-type:content-transfer-encoding:mime-version :subject:date:references:x-mailer:sender; bh=c0XVmBKLHYpINxumuXxIlKWYXs//7u/79KpKt2oGJpM=; b=fjp3FAW4ESmpQQd7XpQ1nniPt9Lplvjskmw+05TOCO07At5pN7W3rZ5y/+HQQA28Ah dLtt3ASToShq75ccFZK8LS1hPt88+9XbyZ1qmasdbM61yXVfbZ1nI46lT4IvkgVxryZr r0b3CSNkhXfqs2wZOrXQxWVmnMrCjXH3GpgsY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=cc:message-id:from:to:in-reply-to:content-type :content-transfer-encoding:mime-version:subject:date:references :x-mailer:sender; b=N0ybpeRSG2EWYYqRP5dbbsx3aPZ9+6lumW4FuHoU3EyiZ8DuTAe944H4ZB/46KCjDt L8rjTrSLdA6N4DrYGga64ZVcPGC/O48zI6XVkZnQOHTJqgqbdL647neLqoVOqKb4cpq8 S/VqXRsRkW6tA9YcsU8mWMDL1krtBKRBSaOpI= Received: by 10.66.222.6 with SMTP id u6mr1721712ugg.19.1227965944448; Sat, 29 Nov 2008 05:39:04 -0800 (PST) Received: from epsilon.lan (bl6-145-143.dsl.telepac.pt [82.155.145.143]) by mx.google.com with ESMTPS id j34sm1883783ugc.53.2008.11.29.05.39.02 (version=TLSv1/SSLv3 cipher=RC4-MD5); Sat, 29 Nov 2008 05:39:03 -0800 (PST) Message-Id: <28C48AAC-CF27-4434-819C-A2688D6485CC@fnop.net> From: Rui Paulo <rpaulo@fnop.net> To: Peter Wemm <peter@wemm.org> In-Reply-To: <e7db6d980811282007j48903cdas289c302e1811a0b9@mail.gmail.com> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v929.2) Date: Sat, 29 Nov 2008 13:38:45 +0000 References: <57809A37-B81C-4F50-A418-CD9303F06B72@mac.com> <e7db6d980811282007j48903cdas289c302e1811a0b9@mail.gmail.com> X-Mailer: Apple Mail (2.929.2) Sender: Rui Paulo <rpaulo@gmail.com> Cc: FreeBSD Arch <arch@freebsd.org>, Marcel Moolenaar <xcllnt@mac.com> Subject: Re: RFC: making gpart default X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion related to FreeBSD architecture <freebsd-arch.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>, <mailto:freebsd-arch-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arch> List-Post: <mailto:freebsd-arch@freebsd.org> List-Help: <mailto:freebsd-arch-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>, <mailto:freebsd-arch-request@freebsd.org?subject=subscribe> X-List-Received-Date: Sat, 29 Nov 2008 14:07:49 -0000 On 29 Nov 2008, at 04:07, Peter Wemm wrote: > On Thu, Sep 25, 2008 at 9:59 AM, Marcel Moolenaar <xcllnt@mac.com> > wrote: >> All, >> >> I'd like to switch all architectures to gpart for the reasons given >> below. All current partitioning schemes are supported by gpart and >> work on all platforms. On top of that, ia64 and powerpc are using >> gpart exclusively already. > [..] >> In short: gpart is the first step towards a unified set of >> tools and interfaces and provides the basis for extending >> file system related tools by allowing us to attach real >> meaning to partition types. With the commit and undo feature, >> gpart is ready for use by next generation installers that >> allow us to use any partitioning scheme on any platforms. >> >> Thoughts? > > oh my god. I just tried to use gpart. This needs some SERIOUS help. I agree. > > > First, the 'gpart create' man page doesn't say what "scheme" is. Right. Also, the gpart man page should have much more examples. > After guessing, I tried: > > overcee# gpart create -s gpt /dev/twed1 > gpart: 22 scheme 'gpt' > > What does that mean? It turns out that I didn't have GEOM_PART_GPT > compiled in. Yes, these should probably go into sys/conf instead of GENERIC. > After continuing the guessing game: > > overcee# gpart create -s gpt /dev/twed1 > gpart: 22 provider '/dev/twed1' > > That was useful. Out other tools generally allow /dev prefixes to > be optional. In this case, I think '/dev/' should be stripped and then sent to GEOM. Or maybe I don't know what I'm talking about. > overcee# gpart create -s gpt twed1 > twed1 created > > Now what? Boot code.. there's no example of this either. I tried: > > overcee# gpart bootcode -b /boot/pmbr -p /boot/gptboot -i 1 twed1 > gpart: /dev/twed1p1: Invalid argument > > I suppose that beats "22". > > This works though: > overcee# gpart bootcode -b /boot/pmbr twed1 > > This doesn't: > overcee# gpart bootcode -p /boot/gptboot -i 1 twed1 > gpart: /dev/twed1p1: Invalid argument > I haven't figured this out yet. I'm guessing this is because > /boot/gptboot isn't a multiple of 512 bytes. The error message is > obviously giving no help here. > > Let's try padding it: > overcee# dd if=/boot/gptboot of=/tmp/gptboot conv=sync > 14+1 records in > 15+0 records out > 7680 bytes transferred in 0.000098 secs (78375316 bytes/sec) > overcee# gpart bootcode -p /tmp/gptboot -i 1 twed1 > overcee# > > Yep, that worked. Now for a partition... > > overcee# gpart add -b 512 -s 512m -t freebsd-ufs twed1 > gpart: 22 size '512m' > Huh? "22"? > > overcee# gpart add -b 512 -s 1048576 -t freebsd-ufs twed1 > twed1p2 added Size prefixes should be supported, yes. > But at least I think I'm getting some progress: > overcee# gpart show twed1 > => 34 976771053 twed1 GPT (500.1GB) > 34 478 1 freebsd-boot (244.7KB) > 512 1048576 2 freebsd-ufs (536.9MB) > 1049088 975721999 - free - (499.6GB) > > So I continue.. I figure gpart would pick the first free space: > overcee# gpart add -s 4058062 -t freebsd-ufs twed1 > gpart: Option 'b' not specified. gpt did this with no problems... :-/ > > > Apparently not... > overcee# gpart add -b 1049088 -s 4058062 -t freebsd-ufs twed1 > twed1p3 added > > Now one has to do a gpart show ; add ; show ; add loop to get the > start address. > > > This is really, really raw and unfriendly stuff. Yes. This looks like fdisk, something we really want to avoid. I'll see what I can do to help. Regards, -- Rui Paulo