You are on the right path. It will take quite some time to copy a stream of zeros to the drive. You can speed things up by setting blocks to match the block size that your drive uses. I'd start by adding bs=1024 to the line. Read the man page for units and other bs= options.<br>
<br>-Josh<br><br><div class="gmail_quote">On Thu, Mar 1, 2012 at 9:09 PM, Olwe Bottorff <span dir="ltr"><<a href="mailto:galanolwe@yahoo.com">galanolwe@yahoo.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div style="font-size:12pt;font-family:arial,helvetica,sans-serif"><div style="font-family:arial,helvetica,sans-serif;font-size:12pt">I'm trying to low-level a 100 gb drive. It's in an external caddy and mounted on /dev/sdb. I ran this command:</div>
<div style="font-family:arial,helvetica,sans-serif;font-size:12pt"><br></div><div><font face="arial, helvetica, sans-serif">>sudo dd if=/dev/zero of=/dev/sdb</font><br></div><div><font face="arial, helvetica, sans-serif"><br>
</font></div><div><font face="arial, helvetica, sans-serif">which is how I understand to low-level format a drive (wipe it clean). The trouble is, it's been running now for about 3 hours! Is that normal? The prompt is not returned and the little red lcd is flashing at a uniform rate.</font></div>
<div><font face="arial, helvetica, sans-serif"><br></font></div><div><font face="arial, helvetica, sans-serif">I'm doing this
because I just wanted to get some practice in for what my real task is, which is to clone one machine's drive onto another new machine. My original Ubuntu 11.01 machine has a 160 gb drive, the target will be 250 gb. I'll put the target into the external caddy and run pretty much the same thing again:</font></div>
<div><font face="arial, helvetica, sans-serif"><br></font></div><div><font face="arial, helvetica, sans-serif">>sudo dd if=/dev/sda of=/dev/sdb # sda = original ; sdb = new system in caddy</font></div><div><font face="arial, helvetica, sans-serif"><br>
</font></div><div><font face="arial, helvetica, sans-serif">Am I on the right track? I want exactly what's on my original U11.10 machine (Thinkpad t61) cloned to another t61. And will this take . . . 36 hours?</font></div>
<div><font face="arial, helvetica, sans-serif"><br></font></div><div><font face="arial, helvetica, sans-serif"><br></font></div><div><font face="arial, helvetica,
sans-serif">Olwe</font></div><div><font face="arial, helvetica, sans-serif">GM,MN</font></div></div></div><br>_______________________________________________<br>
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