I have, for many years, used "Darik's Boot and Nuke" on a USB stick to
securely wipe spinning hard disks. It takes a long time, but I mostly
understand and trust the process.
I'm now at the point that I have to wipe and dispose of SSDs, and I'm
feeling a bit shaky on the methodology. Here's what I did:
# hdparm -I /dev/sdX
If the disks are destine for the electronic waste bin the lowest
tech solution is a hammer with a sharp pointy end.-- Alvin Starr || land: (647)478-6285 Netvel Inc. || Cell: (416)806-0133 alvin@netvel.net ||