Once done reboot and hold down the Option key to select the external as the boot drive.
HOW TO CLEAN UP MAC FOR SALE INSTALL
Now you can run the OS installer to install the OS onto your external drive.įollow the instructions of the Installer just make sure you've selected the external drive. Restart the system to make sure its backdated. Go to the date and time setting and set it to manual time then backdate the date to 2009. This next step is needed as the OS installers have a cross-check in them to force you to use a newer OS which we can't use in this model.
HOW TO CLEAN UP MAC FOR SALE MAC OS
With the drive connected launch Disk Utility to clean the drive off and install a GUID partition map as well as create a Mac OS Extended (Journaled) partition. If you must, a USB thumb drive will work as well it will be just dog slow. You'll need ideally a FireWire (fastest) or a USB drive. Once you have it follow the next section steps. If not present there you'll need to find a friend that has the CD/DVD as you won't be able to download it from Apple directly. You'll need to log on to the apps Store then click on the 'Purchased' tab and locate the OS to re-download (you'll need the original owners User ID & password). If not you may need to re-down load it from the Apps Store. Review your OS version and then do a search for 'installer' that should find it (as well as all of the others). If you are lucky you should have a copy of the OS installer on your hard drive. If you don't have either you'll need to create a bootable external disk. You'll need the original Grey CD/DVD's that came with your system or the retail version of the OS (has a picture of one of the great cats on it).
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