[TriLUG] Live image does something strange to USBs

[Brian Henning via TriLUG]

It sounds like maybe the partition table on the flash drive is messed up somehow.  Have you tried writing zeros to the first 64 sectors and running gparted again?

$ dd if=/dev/zero of=/dev/sdX bs=512 count=64

(where sdX is the device node for the flash drive)

A stab in the dark...
-Brian

-----Original Message-----
From: TriLUG [mailto:trilug-bounces+bhenning=pineresearch.com at trilug.org] On Behalf Of Nathan Yinger via TriLUG
Sent: Monday, May 08, 2017 7:57 AM
To: Triangle Linux Users Group General Discussion <trilug at trilug.org>
Subject: [TriLUG] Live image does something strange to USBs

So this is the second time I've had this problem. It goes like this:

1 - I make a bootable flash drive.
2 - The flash drive works fine for installing an OS.
3 - I try to repartition it for use as a regular flash drive again
4 - Gparted shows an error when it opens: "The driver descriptor says the physical block size is 2048 bytes, but Linux says it is 512 bytes."
5 - After ignoring the error, the flash drive appears is Gparted's list of devices, but the capacity shown is 4x what it should be.
6 - If I try to change the partitions, I get more popups with the same error message, and the partitions don't change.

What causes this? How do I get my flash drive back to normal?

This time I used Fedora's Media Writer to create the live USB. Last time I might have used that, or unetbootin, I forget.

Thanks,
~Nathan
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