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Date:      Sat, 08 Sep 2018 15:42:14 -0400
From:      Ernie Luzar <luzar722@gmail.com>
To:        Steven Friedrich <steven.e.friedrich@gmail.com>
Cc:        FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   Re: Can't mount thumb drive
Message-ID:  <5B942616.3010605@gmail.com>
In-Reply-To: <CAPVsTxgvu_+Z548NaRermYaLiYEmVkWb2W6TjC1JMX4d5CZgVQ@mail.gmail.com>
References:  <CAPVsTxgvu_+Z548NaRermYaLiYEmVkWb2W6TjC1JMX4d5CZgVQ@mail.gmail.com>

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Steven Friedrich wrote:
> When I plug in my thumb drive (A Kingston Data Traveler 1G, FAT), dmesg
> says:
> 
> ugen0.5: <Kingston DataTraveler 2.0> at usbus0
> umass0 on uhub0
> umass0: <Kingston DataTraveler 2.0, class 0/0, rev 2.00/1.00, addr 4> 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: <Kingston DataTraveler 2.0 1.04> Removable Direct Access SCSI device
> da0: Serial Number 0681F150A2929B60
> da0: 40.000MB/s transfers
> da0: 980MB (2007040 512 byte sectors)
> da0: quirks=0x3<NO_SYNC_CACHE,NO_6_BYTE>
> 
> 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?


That "Invalid argument" message generally means the thumb drive is not 
formated at all or is formated for NT and not msdos.






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