New WD external hard drives have a virtual partition called 'WD Smartware', featuring some WD tools. Power users might not need it, but you can't unmount it. It's not even visible in Disk Utility. Here's how to permanently unmount it on your Mac. 1. Open a Terminal window 2. Enter the following command: Code: sudo sh -c "echo UUID=`diskutil info /Volumes/WD\ SmartWare/ | grep 'UUID' | awk '{print $NF}'` none hfs rw,noauto 0 0 >> /etc/fstab" 3. Enter your password if prompted. 4. Unmount the drive by right-clicking (or CTRL+click) and choose Unmount/Eject.
