Seagate Champions. Software Downloads. Instructions for installing an internal drive as a bootable or a storage drive in MacOS X.
Physically install the drive into the Mac. Power on the computer while holding down the option key.
Select Installer. Select Disk Utility. Highlight the drive. Enter Volume information Name, Format, and Scheme.
Select Erase. Note: This will erase all data from the drive.
Select Partition. Select Utilities.
Select the Erase tab. Verify that the correct hard drive is selected in the left column. Highlight the drive Select Partition.
Select Install OS X from the options Select your drives as the destination and install Allow time for the drive to format. Verify the drive is mounted on the Desktop. Selecting a different country will clear your cart. Europe, Middle East, Africa.
Booting from a CD? Hold the keys down until the computer restarts and you hear the startup sound for the second time. Release the keys after you hear the second startup chime. The PRAM will be reset. Holding down the Option key during startup will show you a boot screen with all bootable devices listed. You can use the mouse or the keyboard to select a device to boot into.
Sometimes discs can get stuck in your optical drive. When you cannot seem to get them out, you may panic, but just try restarting while holding down either the Eject key, F12 key, or your mouse or trackpad button. Your disc will be ejected in a flash after doing this. If your setup includes a compatible network server NetBoot , you can hold down the N key during startup to attempt a network boot.
Target Disk Mode is a great way to retrieve your files from your Mac if your machine refuses to boot properly.
Command (⌘)-R: Start up from the built-in macOS Recovery system. To use the default boot image on the server, hold down Option-N instead. For example, if you install macOS on an internal or external drive, your Mac Mac to use an external startup disk, check the External Boot setting in Startup If your Mac is using OS X Lion or later, you can also use this.
Follow our guide on Target Disk Mode for more information on how it works. OS X includes a boot option called Safe Mode.
Start up your machine while holding down the Shift key to have OS X only load required kernel extensions and login items. It will disable all non system fonts, all startup items, and login items. If you are having OS X boot problems, always try this first to check and see if you have a rogue piece of software preventing your Mac from booting properly.
Check out this article for more information about booting into Safe Mode.
By continuing to browse the site, closing this banner, scrolling this webpage, or clicking a link, you agree to these cookies. CleanMyMac X. Open Startup Security Utility. Only accept new installations of Windows 7, Windows 8. Accessed 15 August Beyond system errors, different people have different needs when it comes to starting up their computer.
Using this key combination will cause your Mac to become very verbose on startup and will show a terminal-like interface while booting.