[CentOS] CentOS 6 mount of ntfs formatted usb stick fails

[Rob Kampen]

On 04/18/2014 05:32 AM, Robert Nichols wrote:
> On 04/17/2014 12:26 PM, Robert Nichols wrote:
>> On 04/16/2014 11:05 PM, Rob Kampen wrote:
>>> when I tried dd if=/dev/sdf of=somefile count=100 i get:
>>>
>>> somefile: x86 boot sector, Microsoft Windows XP MBR, Serial 0xc3072e18;
>>> partition 1: ID=0x7, starthead 0, startsector 8064, 15626368 sectors, code
>>> offset 0xc0
>>>
>>> still not much wiser I'm afraid. My understanding of the MBR is rough, certainly
>>> insufficient to debug this. the frustration is that windoze is quite happy to
>>> mount and read it just fine.
>> It appears that someone took an _image_ of a full 8GB partitioned device
>> with a standard DOS MBR and stuffed that into _one_partition_ of this USB
>> stick. You should be able to access it in Linux by running (as root):
>>
>>         kpartx -a -v /dev/sdf1
>>
>> That should respond with "add map sdf1p1 ...", and you can then mount
>> device /dev/mapper/sdf1p1.
>>
>> You should run "kpartx -d /dev/sdf1" to delete that mapping before
>> removing the device.
>>
>> BTW, the "file" command will look inside block devices if you use the
>> "-s" (--special-files) flag. It doesn't do that by default because
>> reading some types of special files can have unexpected effects. You
>> can also use the "-k" (--keep-going) flag to get more information than
>> the first match.
>>
>>         file -s -k /dev/sdf1
> OUCH!! Forget most of that. I misread your "dd" command as reading from
> /dev/sdf1 instead of /dev/sdf, since the former was what you had been
> asked to do. The comment about the "file" command still applies, though.
> What does the "file" command have to say about /dev/sdf1 (or a copy of
> the beginning sectors thereof)?
>
# dd if=/dev/sdf1 of=somefile count=100
100+0 records in
100+0 records out
51200 bytes (51 kB) copied, 0.0408561 s, 1.3 MB/s

file -s somefile
somefile: x86 boot sector, code offset 0x76

file -s -k somefile
somefile: x86 boot sector, code offset 0x76

# file -s -k /dev/sdf1
/dev/sdf1: x86 boot sector, code offset 0x76

seems like the partition /dev/sdf1 contains an x86 boot sector - so what 
do I mount?? where is the data?