External startup disk mac. Click the Gears icon (Options) and hit Continue.

External startup disk mac. View your report, and upload a copy to Apple Support Community. For a Mac with Apple silicon: When turning on your Mac, press and hold the Power button. 7. A sheet will drop down, allowing you to cancel the restart, restart, or Choose Startup Disk. 1. If the computer is on, choose Apple menu > System Settings, then click General in the sidebar (you may need to scroll down). Restart your computer and hold down the Option key on Intel machines, or hold down the Power button on Apple Silicon computers. So, it is not too complicated to Mac boot from CD/DVD. Immediately press and hold down the Option key. Mar 6, 2015 · Using a few tricks, I have managed to get the monitor to display Recovery Mode(command + R), but never the Startup Disk selection menu. Repair Mac startup disk in Recovery Mode. 15 OS X SSD as boot disk - no effect! still booting from HDD. Don’t release the keys until you hear Mac’s startup sound or until the Apple logo appears. (You may need to scroll down. Hopefully your USB should be listed as one of the bootable disks in the Startup Manager. Leave the scheme set as GUID partition map. Select your Mac startup disk and click First Aid > Run to repair the disk. Aug 26, 2023 · Instructions for using Carbon Copy Cloner to create a bootable external SSD of an Intel Mac's inside boot drive. Oct 21, 2023 · Safe Mode: select a volume, hold the Shift key, and click Continue in Safe Mode . Select the Documents category in the sidebar and the central section of the window will display all the document files you have stored on the Mac. Long-press the power button until you see the Loading Startup Options. For example: sudo fsck -fy /dev/disk4s2 tells fsck to check and attempt to On your Mac, choose Apple menu > System Settings, click General in the sidebar, then click Startup Disk on the right. Enter the password for the administrator account, then click Continue. May 20, 2022 · Click on Show All Devices (in the dropdown above View) if you don’t see it. Jul 11, 2016 · If you can boot from Drive A, then boot from the Recovery HD on that disk. Once the icon shows it is connect, then press the "update" button. Jun 12, 2015 · Step 2: Open Disk Utility. Hold the option key until you see the Startup Manager. Sep 27, 2022 · Go to Startup Disk. So I need to know, how to force the Mac to show the boot up / startup screen / startup disk selection / apple logo / on an external monitor? Aug 25, 2021 · Reboot the Mac, then immediately hold Command + R keys to load into Recovery Mode. When prompted for the new volume name, call it by the operating system and Crucial SSD (for example, “macOS X9” or “macOS X10”). Dec 8, 2022 · I followed the instructions on "Use an external SSD as your startup disk with your iMac or Mac mini" - Quoting from the instructions: "After Migration, change your startup disk to set the external SSD as the default startup Disk. There Aug 24, 2015 · From System Preferences. After that, follow step 4. This process went smoothly. Open the downloaded application, and follow the initial steps to open the app. Choose View > Show All Devices. Nov 16, 2023 · Dec 26, 2023 12:51 PM in response to Aitchie101. Keep it pressed until you see startup options. Step 1: Get macOS installer files. " May 18, 2020 · Startup Security Utility is only available from recovery Mode: To open Startup Security Utility: Turn on your Mac, then press and hold Command (⌘)-R immediately after you see the Apple logo. 2. I've been using an external SSD to boot Mac OS X for years. Click on the arrow indicated beside the drive name or press Enter. Next, launch Disk Drill from the Applications folder and scan the erased hard drive. If Disk Utility tells you the disk is about to fail, back up your data and replace the disk—you can’t repair it. Make your choice and click the Restart button. Apr 9, 2024 · Then you can go through the steps below to boot your Intel/T2 Mac from the external hard drive: Shut down your Mac. Aug 2, 2023 · Tip 1. In the case of macOS, the boot file is named boot. Changing your startup disk on a Mac is a breeze once you know the steps. The Mac Startup Manager reads the label to display from the same folder that the boot file is located. 3 - using Carbon Copy Cloner drag the internal drive into the Source bin and the external SSD into In this video, I will be taking you through the steps on how to Change the Startup Disk on your macOS Device. To drop from Full Security, you have to start up from the external disk, shut down, then start up in Recovery mode by holding the Power button. Click the Continue button (on a Mac with Apple silicon) or the Up arrow (on other Mac computers). Apr 8, 2024 · Select a user you know the password for and enter the password if asked. Go to the Speed Up section in the sidebar. In the sidebar, select the storage device you want to erase, then click the Erase button . Pull down the Utilities menu, then choose “Startup Security Utility”. How do I allow my Mac to use an external boot disk? You need to go to the Startup Dec 15, 2020 · Try the following a couple of times in succession: Reset NVRAM or PRAM on your Mac - Apple Support . However, when I go to upgrade to either to 14. METHOD 2. Jan 12, 2024 · As you take the steps in this article to free up storage space, this storage information updates automatically. Delete the installer from the Applications folder, redownload it, run it, and select your external SSD as the destination disk. Select a startup disk. I tried rebooting into Recovery mode (cmd+R+power) to get access to the disk utility - no effect! the boot process form HDD continued regardless of that. Step 3. Otherwise it gets stuck on the "pre-boot" grey screen. " If it reads Yes, your bootable USB is bootable, and you can continue with the methods below. Select ”Allow booting from external media. Select your bootable installer, and press Return to allow startup to complete. Restart your Mac to see if the problem is gone. Click Options, then click Continue. Other solutions may be possible but not until we know exactly which model Mac you have and what version of OS X came pre-installed when it was originally purchased. Click the lock at the bottom left to unlock the preference pane. See Change your Mac startup disk. Click "Restore," and Disk Utility will start the copying process. Dec 26, 2018 · System startup utility not prompting for password - Macbook Pro 16 inch, Big Sur I'm attempting to experiment with running operating systems, and following the "Change External Boot settings" steps from About Startup Security Utility - Apple Support When I start "System startup utility", I see a window with the prompt "You will need to authenticate as administrator to change the boot security May 14, 2021 · Cloning Your Mac Boot Drive FAQ. Dec 7, 2022 · On your Mac, click the Apple symbol ( ) in the menu bar and select System Settings. Don't forget to save your work before you issue the command. Use Apple Diagnostics. Select a startup disk, then click Next. You should now see the macOS Utilities window. Dec 7, 2023 · Re dono's reply 6 above: "The version of macOS on selected disk needs to be reinstalled" I suggest you try this: a. #1. Click Start Sharing. This is the name that appears on your desktop and in the Finder sidebar after you open the disk image. Select the added macOS installer in the first column, then select your USB drive in the next column, Choose Destination. Plug in the bootable external drive. Choose a problem in the drop-down menu, and click Start. Install a fresh Mojave on your SSD, and stop when you see the welcome screen where it asks you to select your country. 4. WARNING: When selecting a network startup volume, make sure you select a network startup volume Nov 19, 2019 · Using an External Drive as Your Startup Drive: Part 1. And while the various cloning apps have a lot more features, if you don’t have access to third-party apps, using Disk Utility will create a perfectly usable clone, although it may require a few more steps and lacks some nice features, such as automation and scheduling. Authenticate with an admin user account, and at the macOS Utilities screen, pull down the macos isn't just 1 partition anymore, hasn't been a long time. Conclusion. If it’s not showing up, click on the button to show all available disks. if your mac is damaged enough to not be able to boot, it's not the internal drive stopping you, and whatever you're trying to do here most likely wouldn't help your situation. Click the icon of the disk you want to use, then click Restart. Q. initiate a "re-install" of the OS, BUT d. Then, select your internal installation partition as a boot drive and proceed to standard installation. " Scroll down to "Bootable" and check if the information says "Yes. Table of Contents. You can find guidance here: About Startup Security Utility on a Mac with the Apple T2 Security Chip - Apple Support. . and close. In my case, WiFi enabled automatically but didn't seem to remember the password for my network, so I had to enter it manually. See Optimize storage space. Here’s what you should do if your Mac is running macOS Monterey or earlier: Click and choose System Preferences. Oct 9, 2023 · An external SSD as a startup disk can give your Mac additional performance for system responsiveness, apps, startup, and more. Connect the external SSD to the Mac. To restart the Mac from the command line immediately, run the following command: sudo shutdown -r now. Click Startup Disk. Click General in the sidebar. Then test to see if the EHD can be recognized as a bootable drive. Check the format of your storage device. Turn on FileVault to add an extra layer of security to the encrypted data on your Mac. ” If you want to select an external startup disk before restarting your Mac, quit Startup Security Utility, then choose Apple ( ) menu > Startup Disk. Step 5: Name the SSD. When accessing Startup Disk in System Preferences, the SSD is not listed. See Start up your Mac in safe mode. Advertisement. Creating a report typically takes 2-4 minutes on a healthy Mac. If that fails boot into Safe Mode by booting with the Shift key held down and reboot normally. Oct 4, 2023 · Change Startup Security Utility settings. 1. This can take fairly long, depending on the speed of your external drive If you have an external storage device, such as a USB or Thunderbolt drive, you can install macOS on that device, then use it as a Mac startup disk. 6. Learn how to check which disk started up your Mac. On the old Mac Mini, we have no issue booting up from the internal or external drives. May 15, 2022 · Go to System Preferences > Startup Disk. Jan 3, 2019 · To allow your Mac to use an external startup disk: Open Startup Security Utility. Using the device list info returned by diskutil above, you can tell fsck to check only a specific volume. Level 6. Note that your Mac boots from the new disk after you restart it. However, when starting up from it for the first time, it should ask you to basically “bless” it. Boot into macOS Recovery, click "Reinstall macOS," then select your external SSD as the destination disk. Jul 16, 2020 · METHOD 1. 6Clone" (different than the internal drive) and click apply. Use MacCleaner Pro when it comes to speeding up your Mac. Apr 8, 2024 · Click on the Startup Disk icon. In the Disk Utility app on your Mac, choose Mar 6, 2024 · Locate the macOS installer in the Applications folder, select it, and click Open. Go watch a movie. Shut down the Apple silicon Mac using the menu bar. "aim" the re-installation at the external backup (NOT at the internal drive) Give this a try. Select your storage device as the startup In Disk Utility on Mac, you can erase and reformat (initialize) external storage devices to use with your Mac. Oct 23, 2023 · Select the External Hard Drive: Use the arrow keys or trackpad to navigate to the external hard drive you want to use as the startup disk. Select the filing system that corresponds to your disk format, either APFS or X Extended (Journaled). Support. Select Optimize RAM and click the Review & Speed Up button. macOS Ventura or later: Choose Apple menu > System Settings, click General in the sidebar, then click Storage on the right. Nov 26, 2019 · To select a new startup drive, select Quit macOS Utilities from the macOS Utilities menu. Important Steps: Shut down your Mac. Jul 22, 2022 · Startup Security Utility. Under Allowed boot media, tick Allow booting from external or removable media. Click the icon of the disk you want to use Feb 21, 2017 · 2. Jan 24, 2020 · Click the Manage button next to the startup drive’s graph. The download will probably take 40 min or more. Tip 3. I'm trying to install Big Sur form an external USB flash drive on a MacBook Air from early 2020, but I'm stuck in the Startup Security Utility. My Mac’s internal hard drive has failed and I now need to boot from the external drive to carry out repairs. Connect your storage device to your Mac. Apr 8, 2024 · Open Finder, then launch Disk Utility from the Applications > Utilities folder. This is a security feature, but you can disable it by doing the following: Restart your Mac and press and hold Command + R as soon as you see the Apple logo. I can't explain why you're able to boot from it with your MacBook Pro, it shouldn't as Aug 25, 2020 · 2. Take a look at the section above titled ‘To Boot From Your New Mac Cloned Boot Drive’. See Transfer files between two Mac computers using target disk mode. Install macOS on your storage device. Open System Preferences, then choose Startup Disk. Dec 9, 2020 · How to Enable & Allow External Drive Booting on Mac with T2 Chip. While Disk Dec 30, 2020 · When completed the Mac booted to the old High Sierra OS from the internal HDD! I used the Startup preferences to set the external 10. Select an administrator account, then click Next. Click Yes on the next prompt. That takes you into the Recovery system on that external disk, where you can change its policy using Startup Security Utility. If there is no Run button, click the Repair Disk button instead. The start up security on an Apple Silicon Mac defaults to only Dec 7, 2022 · When you see the available startup disks, select the one you want. Click Enable Users, select a user, enter the login password, click OK, then click Continue. Jan 11, 2024 · To turn off the Startup Security utility Mac, you need to turn off the settings done previously. When you see the macOS Utilities window, choose Utilities > Startup Security Utility from the menu bar. On the Mac you want to access the volume from, choose Go Jul 3, 2021 · In this video I explain how to install macOS on an external USB-C or Thunderbolt SSD and use it to boot your M1, M2, or Intel Mac. Reboot the Mac in Recovery Mode. Dec 23, 2020 · iMac will not boot with external drive connected I have 2 external drives that are connected to my iMac. true. Press and hold the power button until “Loading startup options” appears. Click the lock and enter your password to change the settings. Click the Scheme pop-up menu, then Apr 28, 2022 · Go to Apple menu > Restart. * Mac computers that have the T2 chip don't support starting up Jun 7, 2019 · Using an external SSD as my startup disk with my Mac mini I followed the instructions on "Use an external SSD as your startup disk with your iMac or Mac mini" - Quoting from the instructions: "After Migration, change your startup disk to set the external SSD as the default startup Disk. ) Open Startup Disk settings for me. How to set a default startup disk . Restarting your Mac while you hold down your Mac’s Option key. Startup Manager: all your bootable disks will be displayed in the startup options screen, so just pick the one you want. Once the computer is in Target Disk Mode and available as an external volume to the host Mac, you can copy files to or from that volume. To do that, you simply need to click the Search for lost data button, and Disk Drill will automatically apply all available recovery algorithms in the optimal order. Wait for the Mac to Boot: Your Mac will now boot from the selected external hard drive. Open your Mac or restart the device if you were already using it. 2. On your Mac, choose the Apple menu. You’ll use OS X’s Disk Utility app to format the drive. Then see if you can boot from the EHD. Reboot the Mac again, holding OPTION to boot from a boot disk should Mar 25, 2022 · Step 2. Before pressing the "update" button, first enable WiFi via the icon at the top-right and connect to a network. Restart into macOS Recovery from (login screen, user account, or macOS recovery) Immediately after the screen goes black -- press and hold the power button, don't let go until you see "loading startup options". But there is no such account because the SSD has been completely wiped and there is no OS installed. WARNING: When selecting a network startup volume, make sure you select a network startup volume Feb 15, 2022 · The Mac Startup Manager is stored in the firmware on the logic broad. 2 or 14. 6 users Secure erase Zero all Data) or move the slider for a 0x-3x secure erase (SSD's not needed), OS X Journaled/GUID as the format and a name like "Mac10. To increase available space, you can compress folders, delete personal items, or store items on a separate disk. To start Target Disk Mode with an Apple silicon Mac: Connect both devices via cable. Select your storage device as the startup Feb 13, 2024 · We achieve this by navigating to System Preferences and then selecting Startup Disk. Click the "Restart…" button to restart your Mac. Turn on your Mac and hold down the Option key. See Diagnose problems on Mac. Only the internal HDD. Jan 30, 2021 · 5. To enter Target Disk Mode, turn on your Mac and hold down the T key immediately upon hearing the startup chime. The Managed Storage window will open, displaying a sidebar that shows how disk space is used by file categories. Step 3: Select the drive in Disk Utility. Set a Default Startup Disk: select your disk as above, then hold down the Option key and click Always Use . Finally, click on Create macOS Installer in the next column. May 30, 2023 · In general, a start up disk for Apple Silicon must be made on that computer. destination. Release the key when you see the boot selection menu. Compatible Mac models Using an external SSD as a startup disk is supported by any Mac with an Intel processor with an Apple hard disk or Fusion Drive, with USB 3 ports, running macOS High Sierra 10. Select the external SSD in the Startup Manager. Click the arrow directly below the drive. connect the backup that won't boot b. This will allow you to adjust which Operating S Mar 12, 2017 · A Mac can't boot from a MBR disk and needs a GPT partition scheme to be able to boot from; "And to function as a startup disk, it needs to be using a GUID partition map. Follow the installation process. Earlier versions of macOS: Choose Apple menu > About This Mac, then click Storage. On your Mac, choose Apple menu > System Settings, then click General in the sidebar. Launch Disk Drill and Scan the Erased Hard Drive. Whenever I start it up, I have to disconnect the two USB cables so that the computer will boot up. Start up in macOS Recovery. Share. To check and repair a disk, you need to run First Aid on each volume and container on the storage device in turn, then run it on the storage device itself. You can also choose an ISO image, but that doesn't have much use here. I booted in Recovery mode and accessed Startup Security Utility in an attempt to change the External Boot (or "Allowed Boot Media") setting to allow booting from external media, but I don't even see this option. On an Intel Mac, restart with the Option key held to see the choice of startup disks. A. Select the disk to share; an M1 Mac lets you share any internal or attached drive. " from support page: How to set up and use an external Mac startup disk - Apple Support. On a Mac with a T2 chip, the Startup Security Utility added another two features: Secure Boot and Allowed Boot Media(also called External Boot in some macOS Sep 14, 2015 · Target Disk Mode allows a Mac to be used as an external hard disk connected to another Mac. Connect the two computers with a USB, USB-C, or Thunderbolt cable. When the startup music is playing press and hold the “C” key from the keyboard. Enter a size for the disk image. Nov 4, 2013 · Click on the external drive on the left and click Erase, (10. 3 days ago · Click File on the menu bar and choose New Image > Blank Image. Start your Mac in Recovery Mode and launch Disk Utility. When your Mac restarts, it will boot from the newly created external drive to complete the installation. Reboot your mac and press Command + R. Oct 25, 2023 · External SSD startup disk for Mac, Need to replace my internet Fusion Drive. From the Utilities Window chose the MacOS you want, this should give you the option to confirm the download. If the button is dimmed and you can't click it, skip this step for the disk, container, or Apr 12, 2024 · Choose one of the following ways to install macOS on your external SSD: 1. Power off and unplug the SSD off your functioning Mac. Jan 26, 2024 · This is especially important when your startup disk is almost full and your Mac’s speed is starting to lag. External storage devices are seeing more and more use as primary startup drives, when there’s a Aug 2, 2020 · If it did not launch, you can copy your installation partition on the USB over to your internal drive. Right-click on the bootable volume on the left and select "Get Info. Apr 1, 2021 · Choose Utilities > Share Disk. 3. Apr 12, 2021 · Select your external disk. Disk Nov 25, 2022 · Open the app, and generate a report. Press "Enter" to run the command and change the startup disk. I have a Mac Studio and a MacBookPro (M1), and I was successfully booting both from an external SSD on Sonoma 14. Close the Disk Utility and open Startup (top left menu), you should see and be able to select your new ssd volume. Allow booting from external media. 2 - erase the external SSD and format it to ASPF with Disk Utility. Boot the Mac and hold the Option key (Intel) or enter Recovery Mode (Apple Silicon). Your Mac starts up from macOS Recovery. Click on First Aid. To see how much space is available on a disk, open a Finder window, select the disk in the Locations section of the Finder sidebar, choose File > Get Info, then click the arrow next to General. Feb 2, 2021 · Feb 2, 2021. See Use macOS Recovery on an Intel-based Mac or Use macOS Recovery on a Mac with Oct 24, 2023 · To enable booting from an external drive on the newest Macs, you'll first need to boot into Recovery and find the Startup Security Utility. For instance, if you have turned on the Firmware password, you must turn it off. Select the disk you want to use as a startup disk. Click Target Disk Mode…. If the computer is off, start it up while pressing and holding the T key. Then select your formatted drive, and click Continue. Click Run to begin checking the selected volume for errors. This message appears when you try to boot your Mac from a flash drive or any other external disk. Click the Gears icon (Options) and hit Continue. If you’re using a Mac with the Apple T2 If you have an external storage device, such as a USB or Thunderbolt drive, you can install macOS on that device, then use it as a Mac startup disk. 1 - make sure you have a full and current backup of your drive. Disk Utility will check the volume for errors and repair it if necessary. Drew Reece. The permission to boot from any disc on an Apple Silicon Mac is stored on the internal drive of that Mac. Point 2, that covers in an emergency. If you have used full security for Secure Boot, click the No Security option. Hold the keys until the grey screen goes off completely (the machine should be restarting). Click Utilities Share Disk. Dec 22, 2021 · 1. Click on Run. Click Startup Disk on the right, then click Restart in Target Disk Mode. Recommended a specific External SSD Drive that's need to be used as a Start Up Disc and a USB 3. Whether you’re looking to boot from an external drive or switch between operating systems, this guide has walked you through the process. Open Startup Disk settings for me. At "this" point, insert the Bootable USB Disk you created and press and hold the option key. Tip 2. Clone the startup volume on Drive A to Drive B (SSD). The next time you restart your computer, it starts up from the disk you selected. On the new Mac Mini, when we try to boot up from the external drive, we’re greeted with the, ‘A software update is required to use this startup disk’ prompt. Reboot your Mac again and set the external drive as the startup Jan 3, 2021 · Here’s how: Connect the drive you want to use as a startup disk to your Mac. Dec 21, 2022 · Running fsck. Nov 23, 2020 · About Startup Security Utility "External Boot (Mac models with an Apple T2 chip only): Use this feature to control whether your Mac can start up from an external hard drive, thumb drive, or other external media. External drives have long been used for adding more storage space to Macs. Step 3: Use the USB installer to update your Mac On your Mac, choose Apple menu > System Settings, click General in the sidebar, then click Startup Disk on the right. Start up in safe mode. Aug 26, 2021 · Ensure that the partition for the bootable installer is formatted in Mac Extended with journalling, HFS+J. 1, neither the Mac Studio, nor the MacBookPro will upgrade. Enter the macOS password to access Startup Security Utility. If you have an external storage device, such as a USB or Thunderbolt drive, you can install macOS on that device, then use it as a Mac startup disk. In Disk Utility, you can create a new partition on the internal drive and "restore" the USB drive to the new partition you just created. Select Startup Disk on the right. " 3 days ago · Once it is turned on, the password is needed when the Mac attempts to start up from a non-designated storage device in the Startup Disk preferences or boot into the macOS Recovery mode. i think you're better off keeping your important data on that separate drive. Immediately press and hold Command+R. Open Disk Utility for me. Jun 26, 2020 · Why Use Disk Utility’s Restore Function? Disk Utility is free and included with every copy of the Mac OS. For more information about selecting a level of External Boot security, see the Apple Support article About Startup Security Utility. All I see is this. Select the boot volume and click the Up arrow. Choose System Settings. When I try to allow booting from an external startup disk, it asks for an Administrator. This will start the OS X installer from the CD/DVD on your Mac. Double-click Disk Utility in the Utilities folder of the Applications folder. Select your USB drive from the list and click Restart . 13 or later. Turn on or reboot the the Mac and immediately hold down COMMAND + R keys once you see the Apple logo on screen, continue to hold Command+R until the Mac boots into MacOS Recovery mode. Security settings do not allow this Mac to use an external startup disk. In the Recovery app, choose Utilities > Startup Security Utility. If there’s an Enable Users button, you must enter a user’s login password before they can unlock the encrypted disk. efi and is located in the APFS volume named Preboot by default. Select the Choose Startup Disk option. In the Name field, enter the name for the disk image. Note: If a disk is encrypted, select and click Unlock. Under the External Boot section, check the box for “Allow booting from external media” to prevent boot restrictions. Then your Intel Mac will boot from the Jul 3, 2023 · So finally we landed on installing Sierra on an external Samsung SSD. ) Click Startup Disk on the right. Enter a filename for the disk image, and choose where to save it. Sep 20, 2022 · For each disk that you're repairing, start by selecting the last volume on that disk, then click the First Aid button or tab. Restart. What you need to make a bootable USB for Mac. Select the external SSD, and click Restart. Select the disk you want to use. boot the Mini to recovery c. Select your storage device as the startup Jul 11, 2019 · Plug in both SSD and bootable USB drive (with Mojave installer). I sort of need Windows at the moment, and this is driving me nuts. A list of available startup disks will be displayed. Step 2: Create a bootable installer for macOS. Reset NVRAM on Mac. Feb 8, 2019 · Select your external drive in the sidebar, click "Restore" in the menu, and then select your main drive as the "Restore From" option. When i disconnect the external drives, it boots up & the drives work. Under macOS Monterey, this volume is protected by SIP. 0:00 Introduction0:30 Forma Oct 9, 2023 · An external SSD as a startup disk can give your Mac additional performance for system responsiveness, apps, startup, and more. Select Utility > Startup Security Utility on macOS Utilities window. Then you can use fallback copy of macOS Recovery (to install macOS or use disk utility. Press the power button to turn on your Mac. Your startup disk appears selected. Sep 18, 2019 · Using an external SSD as my startup disk with my Mac mini I followed the instructions on "Use an external SSD as your startup disk with your iMac or Mac mini" - Quoting from the instructions: "After Migration, change your startup disk to set the external SSD as the default startup Disk. A screen displaying all of the available startup disks appears. Select your storage device as the startup . Locate Disk Utility in Applications > Utilities and open it. They provide a cost-effective means to increase storage for media libraries and documents, as well as backup space. eu bm ux cc up yj yj kd iv tk