Formatting a USB drive to wipe away a previously installd FreeNAS

[Fig Newton]

Hello. I am wondering if someone can help me to wipe a usb flash drive?

The way I have been doing it in the past, is to put it into my windows machine (cheater I know) and use the disk management feature to format or remove partitions. Well now that option is not working. I can't shrink, or delete the volume, nor can I use the unallocated space.

From what I gather on searches, the dd command is maybe what I need to use? If that is the case, could someone help me do it? EVERYTHING I have is safely backed up on my FreeNAS server, so am not afraid to delete anything on the computer.

Any help is greatly appreciated.

Thanks, Joe

 

[warri]

Find your usb stick with camcontrol, here an example:

Code:

# camcontrol devlist
...
<Lexar JD FireFly 1100>            at scbus5 target 0 lun 0 (pass7,da0)

Now you know it's da0, so use dd to fill it with zeros:

Code:

dd if=/dev/zero of=/dev/da0 bs=1M

Not sure if that works while FreeNAS is mounted. Give it a try.

 

[Fig Newton]

I can't thank you enough. It worked great.