Any reason why it won't mount any drives?  I just attempted to use my adapter with my second computer connected to one of the drives dban erased and it won't mount at all.  It doesn't give me the option and I can't force it because it can't see the fs.


On Sun, Dec 14, 2014 at 11:57 AM, Todd Millecam <tyggna@gmail.com> wrote:
Live CDs should work on machines that don't even have hard drives, so just try another distro's live cd and see if your hardware likes that better.  If a few different LiveCDs fail, then it could be a firmware/hardware level problem with that machine.
If it did shred your USB drive, then it won't mount until after it's reformated because you overwrote the partition table.

On Sun, Dec 14, 2014 at 11:53 AM, Stephen M <smelheim85@gmail.com> wrote:

The problem right now is the USB with my different is won't mount.  And when I tried a live cd.  It didn't boot.

On Dec 14, 2014 11:51 AM, "Todd Millecam" <tyggna@gmail.com> wrote:
dban probably just found all drives and wiped them all would be my guess.  To make them usable again, you'll probably need to format them.  Try booting up with the gparted live cd and see what you can see.

On Sun, Dec 14, 2014 at 11:36 AM, Stephen M <smelheim85@gmail.com> wrote:
There is a problem using dban.  When I started it up it never gave me options on what to scan.  Now my two SATA drives along with my USB drive are not working.  I need help to understand what is going on please.

On Sun, Dec 14, 2014 at 11:32 AM, Stephen Partington <cryptworks@gmail.com> wrote:
Todd thanks. I am filing this away for my own use later.

On Sun, Dec 14, 2014 at 11:26 AM, Todd Millecam <tyggna@gmail.com> wrote:
Oh, if it's SSD drives, don't do it this way, this is solely for plattered drives.  If you are using an SSD, then you just need to issue a secure command to the drive and tell it to wipe itself--which you can do through hdparm:

$~ hdparm --user-master u --security-set-pass PasSWorD /dev/sda  #sets up security on the drive
$~ hdparm --user-master u --security-erase PasSWorD /dev/sda # the point of no return delete everything on your SSD drive command


On Sun, Dec 14, 2014 at 11:00 AM, Todd Millecam <tyggna@gmail.com> wrote:
There's a lot of ways to do it, but they all do the same thing.
In bash:
$~ shred -zn10 /dev/sda

That'll securely erase everything on block device /dev/sda--give it a while to run as it's writing random numbers across the entire drive and then finishing by writing nothing but 0s on it.  This makes all data on the device non-recoverable.

You need to overwrite the data anywhere from 4 - 15 times before it's clean and nothing can be recovered from it. 

That's essentially all dban/wipe is doing.  If you want to get even more primitive, then you can use dd (garunteed to be on all *nix systems)
$~  dd if=/dev/random of=/dev/sda && dd if=/dev/zero of=/dev/sda

That's the same as doing one pass, but if shred is there (and it usually is) then it'll do all 10 passes for you.  I guess you could just throw that dd command in a simple loop:
$~  for i in `seq 10` ; do dd if=/dev/random of=/dev/sda && dd if=/dev/zero of=/dev/sda ; done


Dban or wipe will do all this for you, but you can do it yourself.
(Note, don't do it on the currently-running OS drive, because it'll eventually erase glibc.so being used to do the overwrite.  If you want to do it on multiple drives, just plug them all into the same computer, and run shred on all of them from a live-cd of your chosing)



On Sun, Dec 14, 2014 at 10:27 AM, Stephen M <smelheim85@gmail.com> wrote:
HI,

I have a couple drives that I want to wipe and give them to the Loco group.  I have never done a wipe on my own computer.  I want to see whats the best method.  I know there is dban, wipe, and many other solutions.  I will be using a SATA to USB adapter so I don't have to open my computers

What I need to know is there a way to use that device and still work on my computer.  Or do I have to let my computer run dban or whatever to wipe the drive.

Thanks all.

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