No harm, no foul, it's not a particularly fast Celeron, so I don't mind letting it run long, I just wasn't sure what to expect.<br><br><div class="gmail_quote">On Wed, Jun 1, 2011 at 8:15 AM, Will <span dir="ltr"><<a href="mailto:will.sterling@gmail.com">will.sterling@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">I should have recommended /dev/zero instead of /dev/urandom. For your purposes it would have been just as good and faster.<div>
<div></div><div class="h5"><br><br><div class="gmail_quote">On Wed, Jun 1, 2011 at 8:02 AM, Will <span dir="ltr"><<a href="mailto:will.sterling@gmail.com" target="_blank">will.sterling@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">It should eventually quit on its own. The amount of time it will take is dependent on how fast your CPU can generate random numbers and how large the partition is.<div>
<div></div><div><br><br><div class="gmail_quote">On Wed, Jun 1, 2011 at 5:09 AM, Mike Bean <span dir="ltr"><<a href="mailto:beandaemon@gmail.com" target="_blank">beandaemon@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">How long would I need to leave this running? cat /dev/urandom > /dev/sda1 's been going for long about 10 hours now. Is this something that I'll need to abort or does it terminate on its own?<div>
<div></div><div><br><br><div class="gmail_quote">
On Tue, May 31, 2011 at 9:04 AM, chris fedde <span dir="ltr"><<a href="mailto:chris@fedde.us" target="_blank">chris@fedde.us</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Raymond,<br>
<br>
What does the magic block size do?<br>
<br>
<br>
I'd go with two passes of "cat /dev/urandom > /dev/sdX" as root.<br>
<div><br>
On Tue, May 31, 2011 at 8:51 AM, Raymond DeRoo <<a href="mailto:rderoo@deroo.net" target="_blank">rderoo@deroo.net</a>> wrote:<br>
</div><div><div></div><div>> Mike--<br>
><br>
> In short, I'm giving one of my older PC's to a friend's friend. One of<br>
> those, I don't need it, things. In any case, in terms of secure destruction<br>
> of drives, my father's always taught me to disassemble the drives and throw<br>
> the heads and the platter out separately. Can't do it here, they need the<br>
> drives, so I thought I'd ask for advice in case we have members who might<br>
> know a thing or two about this sort of thing. I figured I'd probably just<br>
> boot it to a live CD and nuke the partitions, and that's probably enough,<br>
> after all, I don't need like a military-grade erase, but I'll settle for<br>
> making it @#$@#$@$ hard to recover. Any suggestions are welcome.<br>
><br>
><br>
> # dd if=/dev/urandom of=/dev/sda bs=387 count=<size of disk in bites> / 383<br>
> Recover from this *IS* still possible, but generally requires someone who is<br>
> *VERY* knowledge about drives to do as such.<br>
> .r<br>
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