How to start up your Mac from an external volume using System Preferences Tip: If there are several USB storage devices connected to your Mac, Startup Manager will only list the ones containing bootable volumes.įull tutorial: how to pick a startup disk for your Mac at boot time. Startup Manager will scan and list connected drives and volumes that can be booted from, as shown below.ģ) Highlight the volume you want to use by using your mouse or trackpad, or left and right arrow keys on the keyboard.Ĥ) Double-click or press the Return key to boot your Mac from the selected volume. Release the key after Startup Manager appears. If your USB thumb drive, USB external disk or flash storage contains a usable operating system or a macOS installer, you can select it at boot time using macOS’ built-in feature called Startup Manager, which can be invoked via a simple keystroke.Ģ) Press and hold the Option key immediately upon hearing the startup chime. How to start up your Mac from an external USB storage device Tip: You can easily burn a bootable image of macOS to a DVD using Disk Utility.
You can also press the left mouse button on a wired mouse during startup to open the disc tray. Your Mac should start up from the macOS installer CD/DVD media. How to start up your Mac from a bootable CD/DVDġ) Firstly, turn on your Mac, or restart it if it’s already on by choosing Restart in the Apple menu.Ģ) Secondly, press and hold the C key on your keyboard immediately upon hearing the startup chime. Bootable optical media (CD or DVD) on Macs equipped with Apple’s Super Drive or a USB thumb drive formatted with a GUID partition type and containing a macOS installer or a usable operating system.Īpple advises against booting from external storage containing a version of macOS earlier than the one your Mac shipped with.Use of livecd-iso-to-disk on any distribution other than Fedora is unsupported and not expected to work: please use an alternative method, such as Fedora Media Writer.Starting up your Mac from an external disk requires the following: Even if it happens to run and write a stick apparently successfully from some other distribution, the stick may well fail to boot. Livecd-iso-to-disk is not meant to be run from a non-Fedora system. livecd-iso-to-disk on other Linux distributions
If your test boot reports a corrupted boot sector, or you get the message MBR appears to be blank., you need to install or reset the master boot record (MBR), by passing -reset-mbr when writing the stick. If you get this message from fdisk, you may need to reformat the flash drive when writing the image, by passing -format when writing the stick. Partition has different physical/logical endings If you get the message Need to have a filesystem label or UUID for your USB device, you need to label the partition: dosfslabel /dev/sdX LIVE.
Information: Don't forget to update /etc/fstab, if necessary. Number Start End Size Type File system Flagsġ 32.3kB 1062MB 1062MB primary fat16 boot Sector size (logical/physical): 512B/512B Welcome to GNU Parted! Type 'help' to view a list of commands. Difference between Fedora and Red Hat Enterprise Linux.Installing, Configuring and Troubleshooting MySql/MariaDB.
Upgrading Fedora using the DNF system upgrade.How to Set NVIDIA as Primary GPU on Optimus-based Laptops.How to join an Active Directory or FreeIPA domain.Getting started with Apache HTTP Server.Managing keyboard shortcuts for running an application in GNOME.Controlling network traffic with firewalld.Displaying a user prompt on the GNOME login screen.Understanding and administering systemd.Performing administration tasks using sudo.