Steps to take on old hard drive before upgrade?

[HiFiGuy528]

Okay, I did a search first, no results.

I am upgrading my stock 120GB HD to 320GB. What step do I need to take before I remove the old HD? I plan to sell it on CL so someone can use it since it is only three days new.

-clean install of OS X?
-do nothing?

Thanks!

 

[KoolStar]

If I were you, and I'm not. Is this a brand new drive by itself or is it one from and external drive. If it is a brand new drive, I would back up any important data on my current hard drive to another media. I would then fallow the guide on this linked page. (LINK) This will zero a Mac hard drive out. Thus erasing any data that could be on the disk. I would then remove the drive, install my new drive, and Install OSX. Thats just me though.

 

[HiFiGuy528]

I planned the upgrade from day one so I did not save anything on the internal MB drive other than user features. The 320GB HD is an internal Hitachi drive.

 

[KoolStar]

I would then just recommending going ahead and zeroing out the drive then switch them out. When you zero all data is destroyed.