From owner-freebsd-questions@freebsd.org Fri Mar 17 02:47:53 2017 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 D2D76D0FA0B for ; Fri, 17 Mar 2017 02:47:53 +0000 (UTC) (envelope-from m.e.sanliturk@gmail.com) Received: from mail-ot0-x234.google.com (mail-ot0-x234.google.com [IPv6:2607:f8b0:4003:c0f::234]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 9359D14A8 for ; Fri, 17 Mar 2017 02:47:53 +0000 (UTC) (envelope-from m.e.sanliturk@gmail.com) Received: by mail-ot0-x234.google.com with SMTP id i1so77563692ota.3 for ; Thu, 16 Mar 2017 19:47:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=OJ5z32VY/8ZiNz1X5n0Tsw0kGJHd+FYO8W31K35J5ug=; b=ZLqYuasS0rzF4w48buQPJusJY1s10Wfq8vLlkhAZjW95unAQV9ur+xDlZ4/LnsIii5 Z14GtMbbrPaTt0DfsdWM3Yw3ELTybVdDIW+9AEWmJlIEk7TfthlrxRQO2XfDDLV+A9wj dV0MTGdivu1OMgl9Gwng+DKIjBOKgsTaP0OvXDv74p1DCnQRoxOHyQ8U7i284NOxB90u 7uy5fISa1ziwsajCO+8wLlRmjCVupXyiLhrlBA0fvmGEKXu0XXPoaTTTKzI/knuUqPih TqcXBdvaqcAr7R7WEFJWJioqAlDU8OqYrciDMydQ46LhoKQU6ByK0H7PrqiuASoodTpr kXPA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=OJ5z32VY/8ZiNz1X5n0Tsw0kGJHd+FYO8W31K35J5ug=; b=GoikfnEZdTt6cqWeXioFX+/IsndcuWvhBmUURPSQZpR3eL4FHKajClvewoqXHV7hzM UGgiZSDulNgrfFVp4fcorIRAZw5u0Ec+jZPCM1hzxwNcuWMtH4VHpRHNyklSW9lkTEWS CsC6URmSN8MfqIWs5yXtHcGCW9zSfUb2q3mFF2aBEDOqTgpHHv7E24sdC4rPLHKahGmu cM+fG90OgiWjMC7piuAxyeuDVomvVg2ERuCfM2UgitLpqYjyB91O35NhVDpcPVlC57Li Ms0tUwq2/4ks9T4lVsCVXMQ140dX1X/qTGWdLl3MXyqlUZv96pb3hfKYYAcfP35kmuuh WdVA== X-Gm-Message-State: AFeK/H15ySqY/0xIclPUW9iSwYxs8EbLFKi4zcJWQ5uaRzJWoimnaG3hqof2tkXb0VpgrVgm/p9MX7WKZGVUIw== X-Received: by 10.202.69.130 with SMTP id s124mr6330162oia.17.1489718872706; Thu, 16 Mar 2017 19:47:52 -0700 (PDT) MIME-Version: 1.0 Received: by 10.157.1.69 with HTTP; Thu, 16 Mar 2017 19:47:52 -0700 (PDT) In-Reply-To: <20170316194612.GA1748@c720-r314251> References: <20170316194612.GA1748@c720-r314251> From: Mehmet Erol Sanliturk Date: Thu, 16 Mar 2017 19:47:52 -0700 Message-ID: Subject: Re: bootable ext. USB SSD for backup To: Matthias Apitz , FreeBSD Questions Mailing List Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Mar 2017 02:47:53 -0000 On Thu, Mar 16, 2017 at 12:46 PM, Matthias Apitz wrote: > > Hello, > > I have acquired a small and flat USB 3.0 external disk (must be SSD for > the size of the case): > > Mar 16 19:36:54 c720-r314251 kernel: da0: > Fixed Direct Access SPC-4 SCSI device > Mar 16 19:36:54 c720-r314251 kernel: da0: Serial Number 20170114010787F > Mar 16 19:36:54 c720-r314251 kernel: da0: 40.000MB/s transfers > Mar 16 19:36:54 c720-r314251 kernel: da0: 953869MB (1953525164 512 byte > sectors) > Mar 16 19:36:54 c720-r314251 kernel: da0: quirks=3D0x2 > > Ofc it has not the promised 1 TB volume, just only 953869 MB, i.e. only > 1 Marketing-TB; > > I'm thinking in re-partitioning the disk (which is actual only one big > NTFS slice) with gpart(8), install even a kernel into a small FS at the > beginning and keep the rest as a big UFS for backups. Having it bootable > with a system could be handy if one has to rescue a system and restore > the last dunp. > > Any ideas/comments > > matthias > -- > Matthias Apitz, =E2=9C=89 guru@unixarea.de, =E2=8C=82 http://www.unixarea= .de/ =E2=98=8E > +49-176-38902045 > _______________________________________________ > > I am sorry to respond with respect to Linux . I think that FreeBSD will be a little similar . When NTFS external disk is used , it is not necessary to "mount" it : It is directly handled with LOSS of access right information of files . When a Linux file system is used , it is necessary to "mount" it for using it . You need to use it either as "root" or find a way to use it as a "user" . If it is bootable , with respect to my use of Fedora ( it may depend on version ) , booting is starting from external drive , but somewhere there is a "fixed" or "hard-coded" sda , etc. . When it is encountered , booting is switching to internal HDD . To prevent this switching , it is necessary to disconnect power of internal HDD units . The above issues are possible difficulties . Mehmet Erol Sanliturk