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)?
--
Bob Nichols "NOSPAM" is really part of my email address.
Do NOT delete it.
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