From owner-freebsd-questions@FreeBSD.ORG Wed Dec 1 08:37:45 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 120A1106566B for ; Wed, 1 Dec 2010 08:37:45 +0000 (UTC) (envelope-from onemda@gmail.com) Received: from mail-ww0-f50.google.com (mail-ww0-f50.google.com [74.125.82.50]) by mx1.freebsd.org (Postfix) with ESMTP id 95AB68FC12 for ; Wed, 1 Dec 2010 08:37:44 +0000 (UTC) Received: by wwf26 with SMTP id 26so2468307wwf.31 for ; Wed, 01 Dec 2010 00:37:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=v/EatfG4pvde3TWJJCswIMKTsNgozE7JSAulfJRSFiM=; b=APDuEH6tUFaEnzesoL6P752odbvrYjDQeR/P0elPjnYzjnihpNyq+yoq4s04rW0Y+8 Qpq9SEH+uD2UQuVQwqywzppvdcDMX4iLy+EK7C1p2cxS0lDa/qubeRvIOxOlbpVFNqvn 9ZED9i/n80D/EEg2q/cDvQEw3dSbJ2g/1ud4Q= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=X5Fa/jFg2BXOJbs2l7VIFFymgImUsXl9E7pzQ8er//zYi3F31Y66nh6a76KEQzRP3I Jd9Ke2lktggl0molVBLIoXUv220vfFsbrjFrUzK5NTXFXltZEHaBGKo2CtqUw1HtuEFY yKaWeQUzcRiLrTd1on1KhOAx7H//k1LG+hGyI= MIME-Version: 1.0 Received: by 10.216.51.8 with SMTP id a8mr1618323wec.62.1291192662560; Wed, 01 Dec 2010 00:37:42 -0800 (PST) Received: by 10.216.234.82 with HTTP; Wed, 1 Dec 2010 00:37:42 -0800 (PST) In-Reply-To: <4CF5F5F8.9070408@gmail.com> References: <4CF5624F.4020901@gmail.com> <20101130221550.2cf6d726@davenulle.org> <4CF5F5F8.9070408@gmail.com> Date: Wed, 1 Dec 2010 08:37:42 +0000 Message-ID: From: Paul B Mahol To: David Demelier Content-Type: text/plain; charset=ISO-8859-1 Cc: Patrick Lamaiziere , freebsd-questions@freebsd.org Subject: Re: 8 partitions maximum X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Dec 2010 08:37:45 -0000 On 12/1/10, David Demelier wrote: > On 30/11/2010 23:29, Paul B Mahol wrote: >> On 11/30/10, David DEMELIER wrote: >>> 2010/11/30 Paul B Mahol: >>>> On 11/30/10, David DEMELIER wrote: >>>>> 2010/11/30 Patrick Lamaiziere: >>>>>> Le Tue, 30 Nov 2010 21:45:03 +0100, >>>>>> David Demelier a ecrit : >>>>>> >>>>>>> Hello, >>>>>> Hello, >>>>>> >>>>>>> We all know that we can only have 8 ufs partitions in one freebsd >>>>>>> slice. Since OpenBSD and NetBSD can support at most 32 partitions >>>>>>> iirc. >>>>>>> >>>>>>> I wonder why FreeBSD still lacks more ufs partitions in one slice? >>>>>>> >>>>>>> Is there any plan to grow up max partitions or every work is >>>>>>> dedicated to ZFS? >>>>>> hmmm, isn't already done in 8.X ? >>>>>> from what's cooking for FreeBSD 8.0 >>>>>> http://ivoras.sharanet.org/freebsd/freebsd8.html >>>>>> << >>>>>> bsdlabel gets extended to 26 partitions >>>>>> >>>>>> Status: Committed to -CURRENT >>>>>> Will appear in 8.0: sure >>>>>> Author: Marcel Moolenaar >>>>>> Web: commit message >>>>>> >>>>>> bsdlabel is (finally!) extended to support more than 8 partitions. The >>>>>> new limit of 26 partitions comes from the number of lower-case >>>>>> letters. >>>>>> >>>>>> To make use of this change, GEOM_PART needs to be used instead of >>>>>> GEOM_BSD (this is default in 8.0 but will not work with older >>>>>> kernels). >>>>> I don't have GEOM_PART in my kernel, but if you said it's default it >>>>> should be pulled in. >>>>> >>>>>> Regards. >>>>>> _______________________________________________ >>>>>> freebsd-questions@freebsd.org mailing list >>>>>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >>>>>> To unsubscribe, send any mail to >>>>>> "freebsd-questions-unsubscribe@freebsd.org" >>>>>> >>>>> But why : >>>>> >>>>> # /dev/md2s1: >>>>> 8 partitions: >>>>> # size offset fstype [fsize bsize bps/cpg] >>>>> a: 10m 16 4.2BSD 0 0 >>>>> b: 10m * 4.2BSD 0 0 >>>>> d: 10m * 4.2BSD 0 0 >>>>> e: 10m * 4.2BSD 0 0 >>>>> f: 10m * 4.2BSD 0 0 >>>>> g: 10m * 4.2BSD 0 0 >>>>> h: 10m * 4.2BSD 0 0 >>>>> i: 10m * 4.2BSD 0 0 >>>>> j: 10m * 4.2BSD 0 0 >>>>> k: 10m * 4.2BSD 0 0 >>>>> >>>>> c: 2047973 0 unused 0 0 # "raw" part, >>>>> don't >>>>> edit >>>>> >>>>> line 11: partition name out of range a-h: i >>>>> line 12: partition name out of range a-h: j >>>>> line 13: partition name out of range a-h: k >>>>> re-edit the label? [y]: >>>>> >>>>> I'm on 8.1-RELEASE. >>>> To make use of such feature you need to recreate table with gpart(8). >>>> >>>> bsdlabel is not going to work. >>>> >>> markand@Melon ~ $ sudo dd if=/dev/zero of=myfile.img bs=1m count=100 >>> 100+0 records in >>> 100+0 records out >>> 104857600 bytes transferred in 2.095537 secs (50038530 bytes/sec) >>> markand@Melon ~ $ sudo mdconfig -a -f myfile.img -u 2 >>> markand@Melon ~ $ sudo gpart create -s MBR md2 >>> md2 created >>> markand@Melon ~ $ sudo gpart show md2s1 >>> gpart: No such geom: md2s1. >>> markand@Melon ~ $ sudo gpart add -t freebsd md2 >>> md2s1 added >>> markand@Melon ~ $ sudo gpart add -t freebsd-ufs md2s1 >>> gpart: No such geom: md2s1. >>> markand@Melon ~ $ sudo gpart create -s BSD md2s1 >> gpart create -s BSD -n 26 md2s1 > > markand@Melon ~ $ sudo gpart create -s BSD -n 26 md0s1 > gpart: entries '26': Invalid argument > markand@Melon ~ $ sudo gpart create -s BSD -n 8 md0s1 > md0s1 created > Looks like max number is 20, up to md2s1t.