By default, your Mac starts up from its built-in hard disk, but a startup disk can be any storage device that contains an operating system compatible with your Mac. For example, if you install macOS on an internal or external drive, your Mac can recognize that drive as a startup disk. You can then follow the steps in this article to start up from it.
Use Startup Disk preferences
When you use Startup Disk preferences to select a startup disk, your Mac starts up from that disk until you choose a different one.
- Choose Apple menu > System Preferences, then click Startup Disk.
- Click the lock and enter your administrator password.
- Select your startup disk, then restart your Mac.
If you see a message that your security settings do not allow this Mac to use an external startup disk, check the External Boot setting in Startup Security Utility.
Use Startup Manager
When you use Startup Manager to select a startup disk, your Mac starts up from that disk once, then returns to using the disk selected in Startup Disk preferences. Paragon ntfs mac free.
To change the startup disk back to the default internal drive, open the System Preferences from the Dock and click “Startup Disk”. In order to select a different Startup Disk, you will need to click the lock in the lower-left corner. Enter your system password to unlock the Startup Disk preferences. Choose your internal disk and then click. Install Disk Creator is a straightforward way to create a boot disk. I was able to make a macOS Sierra external USB boot disk in a few minutes, and the installation worked without a hitch. The file system on an older Mac mini (early 2009, latest supported OS 10.11) got corrupt, and disk utilities ended up in an infinity verify-can't-repair loop.Thanks to a insightful tip I could mount it on a different machine and restore my files. (I physically removed the disk and mounted it with a USB-to-SATA cable). We take a look at a couple of different ways to load another boot disk on your Mac. We take a look at a couple of different ways to load another boot disk on your Mac. Another hard disk in OS X. Use instructions on the Apple website How to upgrade to OS X El Capitan to download InstallMacOSX.dmg. Use the Disk Utility to erase a 16 GB or larger flash drive. If the Disk Utility window has a View pulldown menu, make sure Show All Devices is selected. Highlight the flash drive, then click on the Erase button. Use the setting shown in the.
- Press and hold the Option (Alt) key immediately after turning on or restarting your Mac.
- Release the Option key when you see the Startup Manager window.
If your Mac is protected by a firmware password, you can release the key when you're asked to enter the password. - Select your startup disk, then click the arrow under its icon, or press Return.
If you press and hold the Control key during this step, your selection is saved in Startup Disk preferences, so it persists until you change it.
If your Mac is using OS X Lion 10.7.3 or later, you can also use this method to start up from your Time Machine backup disk. Startup Manager identifies your Time Machine backup as ”EFI Boot.”
If you can't select your startup disk or start up from it
Download music from ipad to mac. Check for these possibilities if you can't see your disk in Startup Disk preferences or Startup Manager, or your Mac won't start up from it.
Check for a compatible operating system on the startup disk
Make sure that your startup disk is using a version of macOS that is compatible with your Mac. If in doubt, use the same Mac to reinstall macOS on that disk.
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To start up from an external disk with macOS Catalina 10.15 or later, the disk must connect via USB-A, USB-C, or Thunderbolt, not FireWire.
Check startup security settings
If you're using a Mac that has the Apple T2 Security Chip, check the settings in Startup Security Utility. These settings determine whether your Mac can start up from another disk.
Check for Option ROM firmware
If you're in Startup Manager and can't see a third-party startup disk, the startup disk could be using Option ROM firmware. To enhance system security, Mac computers with up-to-date software don’t show devices that use Option ROM firmware until you load their firmware. To do that, press Option-Shift-Command-Period Download from apple music on mac. while in Startup Manager. If your startup disk appears, do that each time you want to start up from it or from another disk connected to it.
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If you're using a firmware password, the ability to load Option ROM firmware is disabled as an additional security protection. https://cleverpals431.weebly.com/naruto-ultimate-ninja-storm-mac-download.html.