From owner-freebsd-questions@FreeBSD.ORG Tue Jul 7 19:36:36 2009 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 6C0AD106566C for ; Tue, 7 Jul 2009 19:36:36 +0000 (UTC) (envelope-from illoai@gmail.com) Received: from mail-yx0-f181.google.com (mail-yx0-f181.google.com [209.85.210.181]) by mx1.freebsd.org (Postfix) with ESMTP id 23A578FC1C for ; Tue, 7 Jul 2009 19:36:36 +0000 (UTC) (envelope-from illoai@gmail.com) Received: by yxe11 with SMTP id 11so7235601yxe.3 for ; Tue, 07 Jul 2009 12:36:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=IXCD4uU4PBQ5EhQEZHuKPX59tZphqoHQySzZ3JJgaLg=; b=Lh14slOzg5zAdogWKTZ7B4r6zoNcd/4Fy8X35LlpzotI74Ml1XiPG2GHNSSdpAQc3Y xxTbPRilEY0erTB765bm+Vk4FX68nWIv+plODxvjZZNDzyAEI/loI6AuwZA99BpYlA5S bqCk3vZhO2tW2751Xk6+5J0l61/w2GNxVckmY= 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:content-transfer-encoding; b=mcXseIuhOrgdpofV1FesOTUYSaxItgjsRolFvDU+WzPOHw1dWPHF6A02AQngIU3j7/ j8qpDLBIkUY/vrhRrE0MA2MeDIyDpP2BIX04cB0D8AAU9KaoCJWWwjCe632dxGPX96XM 9Mgm28vfwzxXZkzrWHZP1C46mjN/eMJa9Mghs= MIME-Version: 1.0 Received: by 10.90.103.16 with SMTP id a16mr5435513agc.32.1246995395201; Tue, 07 Jul 2009 12:36:35 -0700 (PDT) In-Reply-To: References: Date: Tue, 7 Jul 2009 15:36:35 -0400 Message-ID: From: "illoai@gmail.com" To: Daniel Underwood Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: freebsd-questions@freebsd.org Subject: Re: 2 questions: GEOM_LABEL and partition naming 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: Tue, 07 Jul 2009 19:36:36 -0000 2009/7/7 Daniel Underwood : > Good morning, folks! =A0(At least, it's morning on the east coast of USA) > > > QUESTION 1: Would someone please explain the /var/run/dmesg.boot excerpt = below? > > Note: I have glanced at both of the following links, but at the > moment, I do not have time to dig into the documentation and learn all > about this. =A0I'm hoping to get enough knowledge to understand what's > going on with this excerpt, and then later invest time in deeper > learning. > > > > [BEGIN excerpt from dmesg.boot] > GEOM_LABEL: Label for provider ad0s1a is ufsid/4a0047d615cb402f. > GEOM_LABEL: Label for provider ad0s1d is ufsid/4a0047d94598831f. > GEOM_LABEL: Label for provider ad0s1e is ufsid/4a0047d8017e2a4d. > GEOM_LABEL: Label for provider ad0s1f is ufsid/4a0047d82cde044f. > GEOM_LABEL: Label for provider ad0s1g is ufsid/4a0047d6b40e9fa1. > Trying to mount root from ufs:/dev/ad0s1a > GEOM_LABEL: Label ufsid/4a0047d615cb402f removed. > GEOM_LABEL: Label for provider ad0s1a is ufsid/4a0047d615cb402f. > GEOM_LABEL: Label ufsid/4a0047d6b40e9fa1 removed. > GEOM_LABEL: Label for provider ad0s1g is ufsid/4a0047d6b40e9fa1. > GEOM_LABEL: Label ufsid/4a0047d8017e2a4d removed. > GEOM_LABEL: Label for provider ad0s1e is ufsid/4a0047d8017e2a4d. > GEOM_LABEL: Label ufsid/4a0047d82cde044f removed. > GEOM_LABEL: Label for provider ad0s1f is ufsid/4a0047d82cde044f. > GEOM_LABEL: Label ufsid/4a0047d94598831f removed. > GEOM_LABEL: Label for provider ad0s1d is ufsid/4a0047d94598831f. > GEOM_LABEL: Label ufsid/4a0047d615cb402f removed. > GEOM_LABEL: Label ufsid/4a0047d6b40e9fa1 removed. > GEOM_LABEL: Label ufsid/4a0047d8017e2a4d removed. > GEOM_LABEL: Label ufsid/4a0047d82cde044f removed. > GEOM_LABEL: Label ufsid/4a0047d94598831f removed. > [END excerpt from dmesg.boot] By default now, geom creates an ufsid label on its ufs partitions (similar idea to linux's uuid scheme). If you choose to not use it (let us say, for instance, as we can clearly see, as no-one could disagree (and 30 other inane Chomskyisms)) by mounting your partitions via their respective bsdlabel names, geom kindly removes them. There has been some debate as to whether this should be silent or not (I think in freebsd-current@), since it is perfectly safe to ignore. It is perfectly safe to ignore. --=20 --