<div dir="ltr">I always dban new disks 3 times over, you will not hit the parts of the disk that have the OS or data on it and might miss something. just my .02</div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Sun, Dec 30, 2012 at 5:46 PM, Ron Frazier (ALE) <span dir="ltr"><<a href="mailto:atllinuxenthinfo@techstarship.com" target="_blank">atllinuxenthinfo@techstarship.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
got it running.<br>
<br>
estimated time till done is 2 days. dd isn't very fast.<br>
<span class="HOEnZb"><font color="#888888"><br>
Ron<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
<br>
"Ron Frazier (ALE)" <<a href="mailto:atllinuxenthinfo@techstarship.com">atllinuxenthinfo@techstarship.com</a>> wrote:<br>
<br>
>Thanks for the note. I found the following online which shows how to<br>
>run dd with time to get the time used when done and also shows how to<br>
>check on the progress.<br>
><br>
>time dd if=/dev/urandom of=/dev/sdb<br>
><br>
>Checking on progress<br>
><br>
>The dd command doesn’t give us any useful feedback whilst it’s running,<br>
>but we can force it to cough up some useful data by prodding it with a<br>
>USR1 signal. Assuming you only have one instance of dd running we can<br>
>use:<br>
><br>
>kill -USR1 `pidof dd`<br>
><br>
>(Note, they are backticks around the pidof dd command.)<br>
><br>
>From:<br>
><br>
><a href="https://www.ibm.com/developerworks/mydeveloperworks/blogs/duncanelliot/entry/using_dd_and_urandom_to_write_random_data_to_a_disk?lang=en" target="_blank">https://www.ibm.com/developerworks/mydeveloperworks/blogs/duncanelliot/entry/using_dd_and_urandom_to_write_random_data_to_a_disk?lang=en</a><br>
><br>
>Sincerely,<br>
><br>
>Ron<br>
><br>
><br>
>gcs8 <<a href="mailto:gcsviii@gmail.com">gcsviii@gmail.com</a>> wrote:<br>
><br>
>>Oh, I forgot to read, I think you can do it with dd.<br>
>><br>
>><br>
>>On Sun, Dec 30, 2012 at 4:38 PM, gcs8 <<a href="mailto:gcsviii@gmail.com">gcsviii@gmail.com</a>> wrote:<br>
>><br>
>>> dban<br>
>>><br>
>>><br>
>>> On Sun, Dec 30, 2012 at 4:36 PM, Ron Frazier (ALE) <<br>
>>> <a href="mailto:atllinuxenthinfo@techstarship.com">atllinuxenthinfo@techstarship.com</a>> wrote:<br>
>>><br>
>>>> I want to fill a new hard drive with random numbers as part of a<br>
>>burn in<br>
>>>> process that I do. I know I can boot a copy of Ultimate Boot CD<br>
>and<br>
>>do<br>
>>>> this, but I want to do it from a running Ubuntu installation. Once<br>
>>I've<br>
>>>> filled it with random numbers, I will do a few non destructive read<br>
>>write<br>
>>>> tests with badblocks. Initially, there is no data on the drive, so<br>
>>I don't<br>
>>>> care about file systems, or partitions. I want to write to every<br>
>>bit of<br>
>>>> user accessible space. What commands would I use?<br>
>>>><br>
>>>> Sincerely,<br>
>>>><br>
>>>> Ron<br>
>>>><br>
>>>><br>
>>>> --<br>
>>>><br>
>>>> Sent from my Android Acer A500 tablet with bluetooth keyboard and<br>
>>K-9<br>
>>>> Mail.<br>
>>>> Please excuse my potential brevity.<br>
>>>><br>
>>>> (To whom it may concern. My email address has changed. Replying<br>
>to<br>
>>>> former<br>
>>>> messages prior to 03/31/12 with my personal address will go to the<br>
>>wrong<br>
>>>> address. Please send all personal correspondence to the new<br>
>>address.)<br>
>>>><br>
>>>> (PS - If you email me and don't get a quick response, you might<br>
>want<br>
>>to<br>
>>>> call on the phone. I get about 300 emails per day from alternate<br>
>>energy<br>
>>>> mailing lists and such. I don't always see new email messages very<br>
>>>> quickly.)<br>
>>>><br>
>>>> Ron Frazier<br>
>>>> <a href="tel:770-205-9422" value="+17702059422">770-205-9422</a> (O) Leave a message.<br>
>>>> linuxdude AT <a href="http://techstarship.com" target="_blank">techstarship.com</a><br>
>>>><br>
>>>><br>
>>>> _______________________________________________<br>
>>>> Ale mailing list<br>
>>>> <a href="mailto:Ale@ale.org">Ale@ale.org</a><br>
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>>>><br>
>>><br>
>>><br>
>>><br>
>>> --<br>
>>> Charles Selfridge<br>
>>><br>
>>> PBYC IT director<br>
>>><br>
>>> <a href="tel:%28404%29%20910-3409" value="+14049103409">(404) 910-3409</a><br>
>>><br>
><br>
><br>
>--<br>
><br>
>Sent from my Android Acer A500 tablet with bluetooth keyboard and K-9<br>
>Mail.<br>
>Please excuse my potential brevity.<br>
><br>
>(To whom it may concern. My email address has changed. Replying to<br>
>former<br>
>messages prior to 03/31/12 with my personal address will go to the<br>
>wrong<br>
>address. Please send all personal correspondence to the new address.)<br>
><br>
>(PS - If you email me and don't get a quick response, you might want to<br>
>call on the phone. I get about 300 emails per day from alternate<br>
>energy<br>
>mailing lists and such. I don't always see new email messages very<br>
>quickly.)<br>
><br>
>Ron Frazier<br>
><a href="tel:770-205-9422" value="+17702059422">770-205-9422</a> (O) Leave a message.<br>
>linuxdude AT <a href="http://techstarship.com" target="_blank">techstarship.com</a><br>
><br>
><br>
>_______________________________________________<br>
>Ale mailing list<br>
><a href="mailto:Ale@ale.org">Ale@ale.org</a><br>
><a href="http://mail.ale.org/mailman/listinfo/ale" target="_blank">http://mail.ale.org/mailman/listinfo/ale</a><br>
>See JOBS, ANNOUNCE and SCHOOLS lists at<br>
><a href="http://mail.ale.org/mailman/listinfo" target="_blank">http://mail.ale.org/mailman/listinfo</a><br>
<br>
<br>
--<br>
<br>
Sent from my Android Acer A500 tablet with bluetooth keyboard and K-9 Mail.<br>
Please excuse my potential brevity.<br>
<br>
(To whom it may concern. My email address has changed. Replying to former<br>
messages prior to 03/31/12 with my personal address will go to the wrong<br>
address. Please send all personal correspondence to the new address.)<br>
<br>
(PS - If you email me and don't get a quick response, you might want to<br>
call on the phone. I get about 300 emails per day from alternate energy<br>
mailing lists and such. I don't always see new email messages very quickly.)<br>
<br>
Ron Frazier<br>
<a href="tel:770-205-9422" value="+17702059422">770-205-9422</a> (O) Leave a message.<br>
linuxdude AT <a href="http://techstarship.com" target="_blank">techstarship.com</a><br>
<br>
<br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br>Charles Selfridge<br><br>PBYC IT director<div><br></div><div>(404) 910-3409</div>
</div>