[GRLUG] weird USB problem

[Dave Chiodo]

I would check VERY carefully to make sure you are writing to the
correct device.

Check the /dev entries, check dmesg, etc.




On Tue, Feb 19, 2013 at 9:03 PM, John-Thomas Richards <jtr at jrichards.org> wrote:
> On Tue, Feb 19, 2013 at 06:31:09PM -0500, Matt Behrens wrote:
>>
>> On Feb 19, 2013, at 5:51 PM, John-Thomas Richards <jtr at jrichards.org> wrote:
>>
>> > How is this even possible?  Am I missing something obvious?  How can a
>> > bunch of files still be there after deleting the partition, writing a
>> > new partition that utilizes the entire drive, and reformatting that
>> > partition?
>>
>> I wonder if this has to do with the boot sector trickery I understand
>> distros are using now to allow the same image to be used either as
>> optical or USB Flash media.  Left something behind that fdisk didn't
>> deal with, perhaps?
>
> If the drive is 1GB and my new partition is showing 962MB free, how can
> the files from /dev/sdb still be there?  They aren't there when I mount
> /dev/sdb1.
>
>> I would try zeroing out the MBR plus a bit and starting again with fdisk:
>>
>> # dd if=/dev/zero of=/dev/sdb bs=512 count=1k
>
> I'll give that a try.
> --
> john-thomas
> ------
> The worst thing about new books is that they keep us from reading the
> old ones.
> Joseph Joubert (1754-1824)
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