Normally if you wanted to install OSX on a external drive, you’d probably reboot, insert the DVD and boot off the DVD. Well turns out you really don’t have to do that. You can actually attach a external drive to your machine while it’s running OSX, insert the DVD and install OSX to the attached external device. Here is how:
- Assuming your machine is running some sort of OSX, insert the OSX install DVD into the drive.
- Now attach the external device to your machine (ie: firewire drive).
- Now using finder navigate to “/System/Installation/Packages/” Folder and run “OS Install.pkg” (it might be “OS Install.mpkg”) by double clicking it.
- Go through the installation process and choose the external drive as your installation destination.