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[50.244.208.113]) by smtp.gmail.com with ESMTPSA id y101sm5067447ita.25.2019.03.24.18.43.04 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 24 Mar 2019 18:43:04 -0700 (PDT) To: freebsd-questions@freebsd.org From: Peter Erickson Subject: Unable to mount FAT16 partition (Invalid Argument) Message-ID: <3fbf4d30-e286-fe43-3476-d2f4626b2407@gmail.com> Date: Sun, 24 Mar 2019 20:42:30 -0500 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:60.0) Gecko/20100101 Thunderbird/60.6.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 24C2A720E2 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=EoatzwyU; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of redlamb19@gmail.com designates 2607:f8b0:4864:20::12f as permitted sender) smtp.mailfrom=redlamb19@gmail.com X-Spamd-Result: default: False [-6.78 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; FREEMAIL_FROM(0.00)[gmail.com]; TO_DN_NONE(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; MX_GOOD(-0.01)[cached: alt3.gmail-smtp-in.l.google.com]; NEURAL_HAM_SHORT(-0.95)[-0.955,0]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; IP_SCORE(-2.82)[ip: (-9.03), ipnet: 2607:f8b0::/32(-2.85), asn: 15169(-2.14), country: US(-0.07)]; RCVD_IN_DNSWL_NONE(0.00)[f.2.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Mar 2019 01:43:07 -0000 I'm hoping to get some assistance mounting a FAT (FAT16?) partition created by the VMware ESXi installer (version 6.7.0). Every attempt to mount it on 11.2-RELEASE-p4, results in an "Invalid argument" error, without much to indicate what is wrong or how to resolve it. Any advice or direction would be much appreciated. # gpart show ada1 => 34 16777149 ada1 GPT (8.0G) 34 30 - free - (15K) 64 8128 1 efi (4.0M) 8192 32 - free - (16K) 8224 511968 5 ms-basic-data (250M) 520192 32 - free - (16K) 520224 511968 6 ms-basic-data (250M) 1032192 32 - free - (16K) 1032224 225248 7 vmware-vmkdiag (110M) 1257472 32 - free - (16K) 1257504 585696 8 ms-basic-data (286M) 1843200 8386560 2 ms-basic-data (4.0G) 10229760 6547423 3 vmware-vmfs (3.1G) # ls /dev/ada1* /dev/ada1 /dev/ada1p2 /dev/ada1p5 /dev/ada1p7 /dev/ada1p1 /dev/ada1p3 /dev/ada1p6 /dev/ada1p8 # file -s /dev/ada1p5 /dev/ada1p5: DOS/MBR boot sector, code offset 0x3c+2, OEM-ID "MSDOS5.0", sectors/cluster 8, reserved sectors 2, root entries 512, Media descriptor 0xf8, sectors/FAT 250, sectors/track 32, heads 64, sectors 511968 (volumes > 32 MB), serial number 0x4e781016, label: " ", FAT (16 bit) # mount -t msdosfs /dev/ada1p5 /mnt mount_msdosfs: /dev/ada1p5: Invalid argument While this isn't the drive I initially had the problem with, I have been able to recreate it using VirtualBox. # dmesg | grep ada1 ada1 at ata0 bus 0 scbus0 target 1 lun 0 ada1: ATA-6 device ada1: Serial Number VB039c38ca-974cc97c ada1: 33.300MB/s transfers (UDMA2, PIO 65536bytes) ada1: 8192MB (16777216 512 byte sectors) FWIW, knoppix has no issues mounting the partition, but I'd really be interested in getting this to work on FreeBSD. knoppix # mount | grep /dev/sdb5 /dev/sdb5 on /mnt type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=850,iocharset=utf8,shortname=mixed,errors=remount-ro) Based on the info from knoppix, I tried to mount the partition under FreeBSD using mount_msdosfs directly and specifying the locale (en_US.UTF-8) and codepage (CP850) , but the result was the same - "Invalid argument." Thanks in advance.