Re: How to completely erase a hard disk
- From: Rashkae <ubuntu@xxxxxxxxxxxxxxx>
- Date: Sun, 30 Sep 2007 13:32:31 -0400
Juan Pablo Mazzini wrote:
I`ve made a mistake instaling an Ubuntu 7 server with RAID disk 1.
Now when i try to install again de instaler is unable to make a new
raid cause the old one is still configured somewhere, anyone knows a
metod taht i can use to put both hard disk in like new and erase all
the information stored in them including the booth sector in order to
install again.
This might be a bit extreme to your particular situation (which could be
worked around with a bit of finesse and finer grained understanding of
Raid and it's relative command line tools)
But to simply answer your question and get you on your way, boot from a
Live CD (I suggest Knoppix for stuff like this, though there is no
reason you can't use Ubuntu install CD), identify the hard drive device
you want to erase (Like /dev/hda or /dev/sda)... If there are multiple
hard drives, I suggest eliminating any chance of error by disconnecting
the ones you do not want to erase.
Then dd if=/dev/zero of=/dev/hda (or dd if=/dev/zero of=/dev/sda)
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