<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:12pt"><div><span>One <span id="misspell-0" class=""><span>caveat</span></span>. You will probably need to boot from a stand alone CD to wipe with dd. Once you wipe the part of the disk with the binary for dd or the swap file, <span id="misspell-1" class=""><span>strange</span></span> and <span id="misspell-2" class=""><span>wondrous</span></span> things will happen.</span></div><div><br><span></span></div><div>/<span id="misspell-0" class="mark">dev</span>/<span id="misspell-1" class="mark">sdb</span> is the whole drive include the boot sector, the partition table and the partitions. <br></div><div> <span><br>I have long <span id="misspell-2" class=""><span>believed</span></span> that the <span id="misspell-3" class=""><span>ancient</span></span> <span id="misspell-4" class=""><span>Egyptians</span></span> didn't invent
<span id="misspell-5" class=""><span>mummification</span></span>. They invented <span id="misspell-2" class=""><span>Twinkies</span></span>. </span><span></span><span></span><span></span></div><div><span style="font-family:courier;">--- </span><br style="font-family:courier;"><span style="font-family:courier;">Wayne Johnson, | <span style="color:rgb(191, 95, 0);">There are two kinds of people: Those</span> </span><br style="font-family:courier;"><span style="font-family:courier;">3943 Penn Ave. N. | <span style="color:rgb(191, 95, 0);">who say to God, "Thy will be done," </span></span><br style="font-family:courier;"><span style="font-family:courier;">Minneapolis, MN 55412-1908 | <span style="color:rgb(191, 95, 0);">and those to whom God says, "All right, </span></span><br
style="font-family:courier;"><span style="font-family:courier;">(612) 522-7003 | <span style="color:rgb(191, 95, 0);">then, have it your way." --C.S. Lewis</span><br></span><br></div><div><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;"> <div style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Mike Miller <mbmiller+l@gmail.com><br> <b><span style="font-weight: bold;">To:</span></b> TCLUG Mailing List <tclug-list@mn-linux.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Friday, January 20, 2012 2:17 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re:
[tclug-list] hard disk wiper?<br> </font> </div> <br>
On Fri, 20 Jan 2012, <span id="misspell-5" class="mark">Yaron</span> wrote:<br><br>> On Fri, 20 Jan 2012, <span id="misspell-6" class="mark">wes</span> smith wrote:<br>> <br>>> One does not simply throw a <span id="misspell-7" class="mark">harddrive</span> into <span id="misspell-8" class="mark">Mordor</span>.<br>> <br>> I need to put that on a t-shirt. Or maybe a <span id="misspell-9" class="mark">twinkie</span>.<br><br>Hostess may go out of business, so hurry to buy that <span id="misspell-10" class="mark">Twinkie</span>, but once you have one, you have time because they have a shelf life of 100,000 years.<br><br>But seriously -- regarding /<span id="misspell-11" class="mark">dev</span>/zero -- does anyone think there are any *real* worries about data recovery after you've filled the drive with zeros? I know if I was working on a secret project at Microsoft, I wouldn't fill my old drive with zeros and then hand it to developers
at Apple or Oracle, but if we're talking about giving a personal hard drive to someone who just wants to use it in their personal computer, isn't use of /<span id="misspell-12" class="mark">dev</span>/zero plenty?<br><br>Jeremy pointed out that /<span id="misspell-13" class="mark">dev</span>/<span id="misspell-14" class="mark">urandom</span> would use random bits. I would think that /<span id="misspell-15" class="mark">dev</span>/<span id="misspell-16" class="mark">urandom</span> would be a better choice than /<span id="misspell-17" class="mark">dev</span>/zero. Is there any reason to prefer /<span id="misspell-18" class="mark">dev</span>/zero? In other words, isn't this a really good answer:<br><br>dd if=/<span id="misspell-19" class="mark">dev</span>/<span id="misspell-20" class="mark">urandom</span> of=/<span id="misspell-21" class="mark">dev</span>/<drive><br><br>Is it really even necessary to do that twice?<br><br>Related
question: Every drive on my system seems to get three entries in /<span id="misspell-22" class="mark">dev</span> like so:<br><br>/<span id="misspell-23" class="mark">dev</span>/<span id="misspell-24" class="mark">sdb</span><br>/<span id="misspell-25" class="mark">dev</span>/<span id="misspell-26" class="mark">sdb</span>1<br>/<span id="misspell-27" class="mark">dev</span>/<span id="misspell-28" class="mark">sdb</span>2<br><br>To properly mess up that drive, can I just do this?:<br><br>dd if=/<span id="misspell-29" class="mark">dev</span>/<span id="misspell-30" class="mark">urandom</span> of=/<span id="misspell-31" class="mark">dev</span>/<span id="misspell-32" class="mark">sdb</span><br><br>Or do I have to do this?:<br><br>dd if=/<span id="misspell-33" class="mark">dev</span>/<span id="misspell-34" class="mark">urandom</span> of=/<span id="misspell-35" class="mark">dev</span>/<span id="misspell-36" class="mark">sdb</span>1<br><br>Because <span
id="misspell-37" class="mark">sdb</span>1 seems to be the mounted partition with the data.<br><br>Mike<br>_______________________________________________<br>TCLUG Mailing List - Minneapolis/St. Paul, Minnesota<br><a ymailto="mailto:tclug-list@mn-linux.org" href="mailto:tclug-list@mn-linux.org">tclug-list@mn-linux.org</a><br>http://mailman.mn-linux.org/mailman/listinfo/tclug-list<br><br><br> </div> </div> </blockquote></div> </div></body></html>