From owner-freebsd-questions@freebsd.org Sat Sep 8 19:36:25 2018 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6653FFFBF90 for ; Sat, 8 Sep 2018 19:36:25 +0000 (UTC) (envelope-from yuripv@yuripv.net) Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 0E29775C07 for ; Sat, 8 Sep 2018 19:36:24 +0000 (UTC) (envelope-from yuripv@yuripv.net) Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailout.nyi.internal (Postfix) with ESMTP id 61E1F2102F; Sat, 8 Sep 2018 15:36:24 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute5.internal (MEProxy); Sat, 08 Sep 2018 15:36:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yuripv.net; h= content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-sender :x-me-sender:x-sasl-enc; s=fm2; bh=OKFikeJ/eVQV+/y1rjGWZFwOsIVug 9LX2ieK8er8St8=; b=XVDKuw3lxqV9s+5L7woMElwxOeFzPPuNY1yp9cVA7HQSh euFRK0XZ5erqUGDgr23LHRBEYdwlfwVSLDiIU7KdmaRr8iSV9LGkcwibI3KZ+jtO JKmndze1iArdvDRpiOgY/01Wi1EaaISZ/2Y/nYYm09zvLmkfrdszmYQNTT4KWwvo 62XDw8Tcrekd9IQcozoR0D8AKBjK+2bahPIzYFdOAjlGs86ReaQiWNwEczXJSKTv 4duycxE10Ou8exxwDAiHn3i5klHZ77x3FiVWt9iXvnnCxKV1PGmqV9VNzR7KJ/rz PJg4OZ88Pdv/n86TZ85WFr4JavDbwK/YHMl/fMIcw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-sender:x-me-sender:x-sasl-enc; s=fm3; bh=OKFike J/eVQV+/y1rjGWZFwOsIVug9LX2ieK8er8St8=; b=rssvZvWdmVBe2kBg0nA9F6 0CGpXGu6rDE5ffppxeyjHvUZMKpLH0ROm83L2Vkjzpsp4v3JSVzo20scTF6NT1eL Xj10PyvAYRkpFSW+u9rNgUmnAi1VASspLfCJ51tKTytckhNlalhqx+uf8IInTKkN 4xWQnfddOF4RbTaOic4y551L3LwplXj6tvjhvb1wAXPfxm9yMR4hF+WCbmJpMIq8 +N1prV0T7fHgF0ljTwPsgB8e5LJNjYWKkquJiiC802Kc5u+W9I5p0lH/3vR067qz l2yu5G5NMAnbUVlE7l6jUMTJq2d30+qq8PCV9Z4iJCp4frUJhLsvOByjwiyxBbbg == X-ME-Proxy: X-ME-Sender: Received: from [192.168.1.2] (unknown [62.183.126.215]) by mail.messagingengine.com (Postfix) with ESMTPA id E69C71029B; Sat, 8 Sep 2018 15:36:22 -0400 (EDT) Subject: Re: Can't mount thumb drive To: Steven Friedrich , FreeBSD Questions References: From: Yuri Pankov Message-ID: <7c6ad5e0-4e88-94a1-1bfb-796dc1d897e7@yuripv.net> Date: Sat, 8 Sep 2018 22:36:18 +0300 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 08 Sep 2018 19:36:25 -0000 Steven Friedrich wrote: > When I plug in my thumb drive (A Kingston Data Traveler 1G, FAT), dmesg > says: > > ugen0.5: at usbus0 > umass0 on uhub0 > umass0: on > usbus0 > umass0: SCSI over Bulk-Only; quirks = 0xc100 > umass0:7:0: Attached to scbus7 > da0 at umass-sim0 bus 0 scbus7 target 0 lun 0 > da0: Removable Direct Access SCSI device > da0: Serial Number 0681F150A2929B60 > da0: 40.000MB/s transfers > da0: 980MB (2007040 512 byte sectors) > da0: quirks=0x3 > > but when I try to mount it using: > mount_msdosfs /dev/da0 /mnt > > it squeals Invalid argument. > > So I tried: > mount_msdosfs /dev/da0a /mnt > it squeals Invalid argument. > > Both /dev/da0 and /dev/da0a exist. > > What am I doing wrong? You seem to be doing everything correctly, so it's possible something wrong with the FS itself. Check if you really have FAT there using: file -s /dev/da0 file -s /dev/da0a