If you've ever wanted to get rid of an old hard drive, but want to make sure that people can't get at any potentially sensitive information, there's a few steps to get the job done.
Note that this tutorial assumes that you're already running an operating system off a different drive, and that the old one you wish to dispose of is plugged into and accessible by your new system.
Step one: back-up the whole hard drive
Considering the abundance and cheapness of storage available these days, it's entirely possible to simply create an image of your old hard drive and store it somewhere else, restoring individual files and folders when necessary. Just don't do the dense thing of storing the image file on the hard drive you made the image of.
You can then view the contents of the image simply by double clicking on the file, or you can restore it entirely by clicking the Restore button in Disk Utility and following the instructions.
In this command if represents the input file or device, whereas of represents the output file or device. If you've got multiple partitions on the one disk it can get tricky, so if you want to keep things easy, perhaps take an image of individual partitions rather than the whole disk.
To restore to another drive, just use
If you'd rather not restore the entire image just to look at what's in it, you can mount the file to a folder to browse:
You should now see the contents of hdd.img in
To unmount, simply point