topic Erase data on disk in Operating System - HP-UX

Erase data on disk

Eric Jacklin — Tue, 18 Nov 2008 12:22:03 GMT

Hi,

I would like to wipe the entire OS Disk.So Would you please suggest me the possible ways to do this

Re: Erase data on disk

Steven E. Protter — Tue, 18 Nov 2008 12:25:25 GMT

Shalom,

1) Do an OS install, include the target disk in the install.

2) Use a hammer. We physically destroy the disk.

3) Use dd command of=/dev/dsk/yourdisk

SEP

Re: Erase data on disk

Sharma Sanjeev — Tue, 18 Nov 2008 12:33:37 GMT

Hi Steven

2nd one is good idea :-)

Sanjeev

Re: Erase data on disk

James R. Ferguson — Tue, 18 Nov 2008 12:46:25 GMT

Hi eric:

If you choose to write zeros over a disk, you will greatly speed up the process by using a large block size and a raw device:

# dd if=/dev/zero of=/dev/rdsk/cXtYdZ bs=1024k

That said, sophisticated technologies can still read data overwritten ten or more times. A hammer and some strong acid work better in this case.

If the disk merely contained an operating system, simple means serve to render it useless.

Regards!

...JRF...

Re: Erase data on disk

likid0 — Tue, 18 Nov 2008 14:03:40 GMT

I love the Hammer tecnique, would love to give it a go. ;D

Re: Erase data on disk

Eric Jacklin — Mon, 24 Nov 2008 11:32:04 GMT

Thanks