From owner-freebsd-questions@freebsd.org Tue Jan 16 16:52:15 2018 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 807D0E7A661 for ; Tue, 16 Jan 2018 16:52:15 +0000 (UTC) (envelope-from vas@mpeks.tomsk.su) Received: from relay2.tomsk.ru (mail.sibptus.tomsk.ru [212.73.124.5]) by mx1.freebsd.org (Postfix) with ESMTP id DC0028268D for ; Tue, 16 Jan 2018 16:52:13 +0000 (UTC) (envelope-from vas@mpeks.tomsk.su) X-Virus-Scanned: by clamd daemon 0.98.5_1 for FreeBSD at relay2.tomsk.ru Received: from [212.73.125.240] (HELO admin.sibptus.transneft.ru) by relay2.tomsk.ru (CommuniGate Pro SMTP 5.1.16) with ESMTPS id 39913983; Tue, 16 Jan 2018 22:47:23 +0600 Received: from admin.sibptus.transneft.ru (sudakov@localhost [127.0.0.1]) by admin.sibptus.transneft.ru (8.15.2/8.15.2) with ESMTP id w0GGqAQn023285; Tue, 16 Jan 2018 23:52:12 +0700 (+07) (envelope-from vas@mpeks.tomsk.su) Received: (from sudakov@localhost) by admin.sibptus.transneft.ru (8.15.2/8.15.2/Submit) id w0GGq6Yt023283; Tue, 16 Jan 2018 23:52:06 +0700 (+07) (envelope-from vas@mpeks.tomsk.su) X-Authentication-Warning: admin.sibptus.transneft.ru: sudakov set sender to vas@mpeks.tomsk.su using -f Date: Tue, 16 Jan 2018 23:52:06 +0700 From: Victor Sudakov To: Marko Turk Cc: freebsd-questions@freebsd.org Subject: Re: Dualboot and ZFS Message-ID: <20180116165206.GA23125@admin.sibptus.transneft.ru> References: <20180115151526.GA66342@admin.sibptus.transneft.ru> <20180116034929.GB89443@admin.sibptus.transneft.ru> <20180116112814.GA18197@admin.sibptus.transneft.ru> <367901b3-a413-01f2-ecaa-479668b4b232@FreeBSD.org> <20180116143559.GA21461@admin.sibptus.transneft.ru> <20180116144458.GB21464@vps.markoturk.info> <20180116155431.GA22546@admin.sibptus.transneft.ru> <20180116155719.GC21464@vps.markoturk.info> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180116155719.GC21464@vps.markoturk.info> Organization: AO "Svyaztransneft", SibPTUS X-PGP-Key: http://www.dreamwidth.org/pubkey?user=victor_sudakov X-PGP-Fingerprint: 10E3 1171 1273 E007 C2E9 3532 0DA4 F259 9B5E C634 User-Agent: Mutt/1.9.1 (2017-09-22) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Jan 2018 16:52:15 -0000 Marko Turk wrote: > > > > > > > zroot/usr is not below zroot/ROOT/some_test_be, but somehow it's > > > > there in the BE. Can you please explain this? > > > > > > Hi, > > > > > > that's because zroot/usr is not mounted (check 'zfs get all zroot/usr'). > > > > Yes, I know it's not mounted (canmount=off), but it's not a child > > dataset of zroot/ROOT/some_test_be, and yet it's somehow within > > zroot/ROOT/some_test_be when the BE was cloned by beadm. > > Hi, > > since zroot/usr is not mounted, path /usr/bin/* in the filesystem > belongs to dataset zroot/ROOT/some_test_be But why is that? This must be witchcraft :-) Why does it not belong to dataset "zroot", or dataset "zroot/ROOT/some_other_great_be"? Is it because zroot/ROOT/some_test_be is mounted on / ? > so that's why the files are > there. > > E.g.: > $ df -h /usr/bin/ > Filesystem Size Used Avail Capacity Mounted on > zroot/ROOT/default 504G 19G 485G 4% / > Very demonstrative, thank you, but what makes "zroot/ROOT/default" and not any other dataset the container for the files in /usr/bin/ ? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN AS43859