USB can not be mounted anymore after creating live USB

Hi, I have created a live USB by copying the *.iso file to that by using the commands:

unmount /dev/sdb
dd if=*.iso of=/dev/sdb

I can boot with the USB; however, I can not mount it anymore. I want to get back the USB device for using other purposes. How can I do that? Did I lose the USB?

I hope you didn’t actually use *.iso :slight_smile:

To get a USB stick back to completely empty (hence reusable) you do


dd if=/dev/zero of=/dev/sdb  count=100000 (if the drive's entry is /dev/sdb)

You will not be able to mount it, since there will no longer be any partitions / filesystem on it. Yast’s partitioner can be used to do that.

I am just guessing here, but did you try:


sudo mount -t iso9660 /dev/sdb /mnt

I do not think that you need to mount, or delete the iso image in order to create a partition and filesystem.

On 2013-03-16 15:16, walma wrote:
> I can boot with the USB; however, I can not mount it anymore. I want to
> get back the USB device for using other purposes. How can I do that? Did
> I lose the USB?

Partition and format it.


Cheers / Saludos,

Carlos E. R.
(from 11.4, with Evergreen, x86_64 “Celadon” (Minas Tirith))