Darik's Boot and Nuke ("DBAN") is a self-contained boot image that securely wipes the hard disks of most computers. DBAN is appropriate for bulk or emergency data destruction.
Seemed to be working fine until I got to the point of typing in autonuke, which is the fully automated command. It then seems to just display an ad and do nothing (e.g., no hard disk activity light or usb log activity light). Using the interactive mode instead, it allowed me to select what drives I wanted to erase and then started to erase them (with hard disk activity light now constantly on). The mediocre rating is due to the ad and lack of explanation on if anything is suppose to be happening when the ad is displayed. Update: the quick erase resulted in a kernel panic. The DoD short seems to work OK (it hasn't finished yet, 22 hours estimated).
No longer in the spirit of open source, killed off for Blancco's commercial interests... money talks ? lol
If you find that you are booting this from a device like usb or iso and you select quick dban option without selecting drives all attached drives will be wiped. That said I did get errors trying delete standard sata drives in some pc's that wouldn't get wiped and ended up using a Ubuntu Live CD and the format "write 0's" option under the Disks program to work. So I am guessing there are some error conditions where the dban operation can fail. Though the upside of using this program is for the multipass and the speed so if you get it working its clutch.