>>>>> dd if=/dev/zero of=/dev/sda (or what ever)
>>>>>
>>>>
>>>> After reading over all the info here, I think I'm going to go with dd
>>>> since the data isn't too sensitive.
>>>>
>>>> I created a "9.1_Live_x64" USB key with unetbootin, but the laptop
>>>> won't boot to it.  I have another 512MB USB key that it boots to just
>>>> fine.  Could my 8GB key be non-bootable?  The laptop's CD drive isn't
>>>> working so I need another way to install an easy copy of Linux after I
>>>> dd.
>>>>
>>>>  - Grant
>>>>
>>>
>>> I've dealt with many systems that flatly refuse to boot from *some*
>>> usb keys but not from others.. and some even vary based on what's
>>> being booted into on those usb keys.
>>>
>>
>> I used unetbootin to install Damn Small Linux on the 512MB bootable
>> USB key, and I'm booted into it.  /dev/sda is my HD, and I'm running:
>>
>> dd if=/dev/zero of=/dev/sda
>>
>> The USB LED is blinking rapidly, but the HD LED is showing no
>> activity.  Is there any way to tell if the HD is being wiped?
>>
>
> The hdd IS being wiped, if you have the right device (which you do, don't
> worry!). However, I would recommend running with if=/dev/urandom as that
> will overwrite it with random bits instead of just zero. However, since it's
> already being done with zeros and a hard drive would usually be sold with
> all bits set to zero, I think what you are doing will be fine.
>
> Marcus

I checked on it after a few hours and it said "No space left on
device" and the process had exited.  I rebooted the system without the
key inserted and unfortunately it came back up to the normal HD so
nothing has been wiped.  Any idea what I did wrong?

- Grant

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