Theoretically, what you need to do is write zeros to unused space. That is easy to do with 'dd':
dd if=/dev/zero of=/dev/hda5 bs=512 count=30000 where "of" is the partition to be wiped and "count" is the number of sequential disk sectors to write. However, that could destroy needed data on that partition. The problem is determining where that unused space is. Anybody know of a way to do this? You could make a backup of that partition, wipe the partition, and restore the backup. This page might help: http://www.geocities.com/thestarman3/asm/mbr/WIPE.html John Hebert -----Original Message----- From: Matthew Eastman To: [email protected] Sent: 7/14/03 10:47 AM Subject: Re: [brlug-general] HD Free Space Since I didn't clarify, the filesystem is ext3. -- Matt Eastman
