Jul 23, 2010 · Isolating where the problem is occurring is key to finding the solution. Share. Aug 31, 2023 · In general, you can just open Disk Utility from the Utilities folder of your Applications folder. When the macOS installer opens, follow the onscreen installation instructions. Continue to hold the T key until you see a FireWire or Thunderbolt icon on the Mac’s screen. Select the bootable installer. Start your Mac in Recovery Mode and launch Disk Utility. If you’re using a wireless keyboard, do Sep 14, 2022 · Power down your Mac. Step 3: Select the drive in Disk Utility. Repair Mac startup disk in Recovery Mode. Once your Mac has booted up in Recovery you will see a Utilities screen. Manually restart: Power. Ideally, 10% of the disk should be free to leave your Mac’s OS enough space to operate. It’s quite easy to change your startup disk from within the macOS itself. May 15, 2022 · Go to System Preferences > Startup Disk. During startup when Medium Security is turned on, your Mac verifies the OS on your startup disk only by making sure that it has been properly signed by Apple (macOS) or Microsoft (Windows). You can start up your Mac from a network volume, a different disk, or another operating system. Choose Disk Utility. On laptop computers that have Touch ID, press and hold Touch ID. Click Restart on the prompt to confirm your action. Find out how to use Startup Security Utility. ) Click the icon of the disk you want to use, then click Restart. Select a startup disk, then click Next. If either computer has macOS 11 or later, you'll need to use a Thunderbolt cable for this. Enter a name for the boot drive. You can release these keys when you see the Apple logo. See also: Why and when and how to boot your Mac in Safe Mode Set a default startup disk. Click the "Disk Utility", and your Mac will enter the Disk Utility successfully. Certainly, it can be other external storage devices Dec 8, 2020 · Turn on your Mac and continue to press and hold the power button until you see the startup options window. 13 or later. Note: In step 4 I've also connected to Wi-Fi in the top right. Now, select Target Disk Mode. Go to System Preferences → Startup Disk → Choose the disk and restart. WARNING: When selecting a network startup volume, make sure you select a network startup volume Feb 5, 2024 · What most people don’t realize is that their Mac actually converts the available space on their startup disk into virtual memory, which you use for day-to-day operations. Startup Manager: all your bootable disks will be displayed in the startup options screen, so just pick the one you want. ” Click the lock icon and enter your administrator password. Share Disk: Share the disk of a Mac that’s started up in macOS Recovery. Select Startup Disk through Startup Options. The next time you start up or restart your computer, your Mac starts up using the operating system on the selected volume. Restart your Mac to see if the problem is gone. The critical part is next: on system boot hold down the C key as the Mac boots up. In the Terminal app on your Mac, log in to the remote computer using SSH, then enter: % sudo systemsetup -setstartupdisk path. al. 6 days ago · Fix 3: Ensure your bootable disk is using GUID Partition Map/Table. Startup Manager: Option. A screen displaying all of the available startup disks appears. When done, restart your Mac: choose Apple menu > Restart. May 20, 2022 · To repair your startup disk: Start up in Recovery by following the steps above. See Diagnose problems on Mac. (You may need to Mar 7, 2023 · The disk has an operating system (macOS Ventura) and user data (apps, etc. 4. Clicked in Reinstall macOS Monterey and just followed the wizard. Open a Finder window, and select Mac startup disk in the Locations section of the Finder sidebar. Learn both methods in this handy video tutorial. Click Options, then click Continue. Select your storage device as the startup disk. Learn how to make a bootable USB drive with the Terminal command createinstallmedia and install any version of macOS on multiple Macs or do a clean install. Step 2. Use your mouse or trackpad, or left On your Mac, choose Apple menu > System Settings, click General in the sidebar, then click Startup Disk on the right. Hover the cursor over “Options” and click on “Continue”. (Every Mac has a power button. A Mac with two volumes will have the storage divided between them. The login window appears only after you log out of your user account May 16, 2024 · Select Disk Utility in macOS Recovery, then click Continue and follow the steps to repair your startup disk with Disk Utility. Now that you have booted your Mac into Recovery Mode, you can start repairing your disk. Release the Option key when you see a dark screen showing your bootable volumes, including the bootable installer. Jun 25, 2014 · Don't attempt to install Lion over the network or from the external device, because that may be the reason the installation didn't work. WARNING: When selecting a network startup volume, make sure you select a network startup volume and not a See Transfer files between two Mac computers using target disk mode. During the boot process, the startup disk Jun 19, 2016 · 1. Click the icon of the disk you want to use, then click Restart. ) so the boot process can exit. macOS Built-in Recovery Mode: Command + R. Select the disk you Nov 15, 2023 · Now, wait for 20 to 30 seconds. Jan 26, 2024 · A startup disk on Mac is a hard drive’s partition where the operating system is installed. Reset NVRAM on Mac. Jun 12, 2015 · Step 2: Open Disk Utility. Dec 26, 2018 · ALL ask for a disk password on Startup, then a user password a bit later. Select the disk you want your Mac to Here’s how you change the startup drive from recovery mode with an M1 or M2 Mac: Select > Shut Down. Click Continue. ) Important: If you have a Mac with an Apple T2 Security Chip, added security features may need to be set in order to change the startup disk. Make sure your Mac is shut down. This will allow you to adjust which Operating S If there’s an Enable Users button, you must enter a user’s login password before they can unlock the encrypted disk. In the sidebar, select the storage device you want to erase, then click the Erase button . Click the Scheme pop-up menu, then choose GUID Partition Map. You’ll use OS X’s Disk Utility app to format the drive. Sep 11, 2023 · Press down the Power button till your Mac computer displays the startup options window screen. A startup disk is used to boot your Mac, making the computer run normally. Hopefully your USB should be listed as one of the bootable disks in the Startup Manager. if that volume is not present (or NVRAM is reset to defaults), find the first viable boot volume in the local device tree and hand things off to mach_kernel (et. T: Start up in target disk mode. Your Mac will boot into the selected disk until you choose another one or temporarily override your selection using Startup Manager at boot time. However, if your Mac doesn't start up completely or you want to repair the disk your Mac starts up from, open Disk Utility from macOS Recovery: Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps: Aug 31, 2023 · In general, you can just open Disk Utility from the Utilities folder of your Applications folder. At "this" point, insert the Bootable USB Disk you created and press and hold the option key. Click on the Apply button and click on the Done button when it is activated. You'll see a macOS Utilities or Mac OS X Utilities window, which depends on your Mac operating system. See Use macOS Recovery on an Intel-based Mac or Use macOS Recovery on a Mac with Aug 24, 2015 · From System Preferences. Find out how to get the installation files for macOS Sonoma, Ventura, Monterey, Big Sur and older versions. Your startup disk is the first one on the list. Find out how much storage space is available. Set a default startup disk. To use the default boot image on the server, press and hold Option-N instead. If prompted, select a user, then Oct 9, 2023 · An external SSD as a startup disk can give your Mac additional performance for system responsiveness, apps, startup, and more. Or use Startup Security Utility to lower the security level. Select Disk Utility to repair or erase a disk. Step 4: Name and Format. I like the Mac to remember most website login information. Here’s how to do it: Click Disk Utility on the macOS Recovery screen and tap Continue. Boot from CD/DVD: C. See Start up your Mac in safe mode. The latter is a replacement for the old Target Disk Mode , allowing you to access a Mac’s disk drive from another Mac over a USB or Thunderbolt cable. Oct 16, 2023 · Follow the steps below to boot your Mac from the USB drive: Connect your bootable macOS USB drive to your Mac using a USB port. ) Follow the direction in Apple’s White paper on creating a bootable installer for macOS. Use Apple Diagnostics. On your Mac, choose Apple menu > System Settings, click General in the sidebar, then click Startup Disk on the right. Advertisement. Select “Startup Disk. If so, boot into it. In the toolbar at the top, click the Erase button. Use these steps to choose a startup disk with Startup Manager: Turn on or restart your Mac. Learn more about reinstalling macOS. (You may need to scroll down. Select the last volume of the disk and hit the First Aid button. Apr 16, 2024 · Learn how to install macOS on an external drive and make it your Mac's startup disk. Once in Target Disk Mode, simply connect your Mac to another Mac using the proper cable, and transfer your files to the other hard drive. Click Enable Users, select a user, enter the login password, click OK, then click Continue. For now, don't touch anything in the Library. Target Disk Mode allows you to easily copy files from one Mac hard drive to another. Select your USB drive from the list and click Restart . For Intel-based Mac: Step 1. Click the lock icon to make changes and enter your password. May 22, 2024 · If you want your Mac to start up again from the same disk, select Reinstall macOS in the utilities window, then click Continue and follow the onscreen instructions. Use macOS Recovery, part of the built-in recovery system of your See Change your Mac startup disk. Select the name of your external USB drive from the sidebar of Disk Utility under the External section. Target Disk Mode. Choose "File > Get Info", then click the "arrow" next to "General". Tip 3. Here, select “Disk Utility” and click “Continue” to get Sep 8, 2023 · The startup disk is responsible for loading the operating system into the computer’s memory, initiating the necessary drivers and services, and initializing various system components. You can also choose an ISO image, but that doesn't have much use here. To return to the Recovery app, choose Terminal > Quit Terminal. These steps also describe what to do if Disk Utility can't repair your startup disk, or Disk Utility doesn't see your startup disk. Press the button to turn on and hold it until it opens the Options. (Keep holding down the Option key until one or more disk icons appear on your screen. An incorrect partition scheme is also a common reason for Mac/OS X bootable USB not showing up in Startup Manager. Click Startup Disk. Step 2: Assess your downloaded files and drag any unnecessary ones to the Trash. After a few seconds, the Startup Manager appears. A panel should drop down. Dec 7, 2022 · Learn how to set a different disk as your Mac's startup disk, such as an external drive, network volume, or a USB flash drive. Use macOS Recovery on a Mac with Apple silicon Erase your Mac. If the issue persists, press and hold the power button until your Press and hold the power button until “Loading startup options” appears. Disabled in macOS Mojave or later. Back up your disk, then reinstall macOS. Don't forget to save your work before you issue the command. Apr 8, 2024 · Step 2: Click on Startup Disk. To set a default startup disk: Open the Apple menu and select System Preferences. This should get you into Recovery Mode, where you'll see the macOS Utilities window. WARNING: When selecting a network startup volume, make sure you select a network startup volume 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. Turn on FileVault to add an extra layer of security to the encrypted data on your Mac. Your built-in startup disk should be the first item listed in the Disk Utility sidebar. Command-S: Start up in single-user mode. Optimize your Mac for the best In this video, I will be taking you through the steps on how to Change the Startup Disk on your macOS Device. When you see your Mac has powered down, hold down the power button until you see a prompt Jun 20, 2015 · You can permanently change your startup disk or temporarily change your startup disk on your Mac. Turn on the Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes, including the bootable installer. Another trick which I cannot verify is to hold Ctrl and then Click on the disk after invoking startup manager at boot time. If you’re not seeing the disk you’re looking for, make sure it’s properly connected to your Mac. Target Disk Mode: T. But I would like to be challenged for the disc password. Intel Processor. Open the Disk Utility app on your Mac. Open your Applications folder and double-click the macOS installer, named Install [ Version Name ]. Learn what to do if your Mac startup disk is almost full, or you don't have enough storage space to download, install, or copy. Disk Utility - reported errors that spontaneously appear are likely to occur again. Shut down your Mac: Choose Apple menu > Shut Down. ). T: start up in target disk mode. Select a startup disk. Turn on the Mac, then immediately press and hold the Option (Alt) key. You might see a default desktop picture in the background, which might change to your chosen desktop picture when you select your account. Medium Security. On your Mac, use Startup Disk settings to change your startup disk. To return to the Recovery app, choose Startup Disk > Quit Startup Disk. Start up in Target Disk Mode by holding T on startup on the Mac you want to share. In the Recovery app, choose Utilities > Startup Security Utility. Click the View icon in the top left corner and select Show All Devices from the drop-down menu. See Change the security policy. Then, click the onscreen arrow or press Return. Step 3. ) After your Mac starts up, choose Apple menu > System Settings, click General in the sidebar, then click Startup Disk on the right. Put On your Mac computer, and hold down Command + R when you see the Apple logo appear on your screen. WARNING: When selecting a network startup volume, make sure you select a network startup volume Apr 12, 2021 · When your Mac restarts, it will boot from the newly created external drive to complete the installation. Select Show all devices to list all the available disks and other storage devices. During the installation of High Sierra, it asked me to provide a disk password, but unlike ALL of our other Macs it's never asked for that password again. Step 1: Launch Finder and opt for the Downloads folder from the sidebar. Here’s what you should do if your Mac is running macOS Monterey or earlier: Click and choose System Preferences. There read the value of the startup disk from NVRAM. Command-S: start up in single-user mode. However, if your Mac doesn't start up completely or you want to repair the disk your Mac starts up from, open Disk Utility from macOS Recovery: Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps: Jan 2, 2023 · Use Disk Utility to automatically repair disk errors on your Mac. Immediately press and hold the Option key. Replacement hard disk drives are inexpensive enough. After that, follow step 4. If you're using a Mac with the Apple T2 Security Chip, use Startup Security Utility to allow your Mac to start up (boot) from external or removable media. WARNING: When selecting a network startup volume, make sure you select a network startup volume Jul 14, 2021 · Keep pressing the power button until you see “Loading startup options” right below the Apple logo. 1. Specially Dec 9, 2023 · Step 3: Select Your Disk and Run First Aid. Compatible Mac models. Next, open a Finder window and press Option + Command + L on the Keyboard (or navigate to Go > Downloads) to May 23, 2016 · Press the keys immediately after hearing the startup sound unless otherwise specified. Turn on your Mac and boot it into Recovery Mode. (The T key will force your Mac to enter the Target Disk Mode. Set a Default Startup Disk: select your disk as above, then hold down the Option key and click Always Use . Enter your password if prompted. Step 3: Select the startup disk in Disk Utility. pkg file, then follow the onscreen instructions to install the macOS installer into your Applications folder. Enter the password for the administrator account, then click Continue. Start by connecting your MacBook devices using either a Thunderbolt or FireWire cable . Jan 12, 2024 · Free up storage space on your Mac. The Mac drive with the OS on it is the startup disk, while the other is just used for the storage of files. Restart your computer and hold down the Option key on Intel machines, or hold down the Power button on Apple Silicon computers. Step 3: Next, access the Trash from the Dock and click on "Empty. Click the Apple menu and choose Restart or hold down the Power button to restart your Mac. Press the power button to turn on your Mac. This tells the computer to load from the disc rather than from the internal hard drive. 8. After installing macOS on your storage device, you can select that storage device as your startup Aug 27, 2018 · Note: If you have very low disk storage you must do the following: Choose the folder you want to Sync with pCloud: Click on the pCloud icon and choose Sync to pCloud: Create a folder on pCloud Drive: Wait for the Sync to be completed: This is very Important! After the Sync is finished, you must stop it with the cross icon: Feb 21, 2017 · 2. Immediately press and hold down the Option key. Mac OS X Base System is more than likely a partition on disk0. Double-click the . Do this: Hold down the Option while powering on your Mac. Target mode only works when using one of Aug 17, 2023 · Here are the steps to solve the Mac startup disk full issue –. If Mar 22, 2023 · How to boot an Intel-based Mac in Target Disk Mode. Hold the option key until you see the Startup Manager. And don't look anywhere else but in that Folder. Jan 11, 2024 · And if you want to see how much space is available on your Mac's startup disk, follow the steps: Step 1. Mar 12, 2024 · If you still can’t start up from macOS Recovery, try using another Mac (from a friend, family member, or even at an Apple Store) to create an external Mac startup disk on a USB thumb drive (at least 8GB of storage available on that drive. try to find that volume. Typically, the bootable USB is formatted with either Master Boot Record (MBR) or Apple Partition Map (APM), rather than the required scheme, GUID Partition Map Aug 17, 2022 · Plug in your external USB drive. Feb 2, 2024 · If startup never progresses beyond an Apple logo or progress bar: Press and hold the power button on your Mac for up to 10 seconds, until your Mac turns off. If there is a bootable partition, it will be listed (other than the recovery partition). Your Mac can show you how much storage space is being used by various categories of files, and how much space is available for additional 2 days ago · By definition, a startup disk, also called a boot disk, is a volume where Mac's operating system and applications are installed. Start up in safe mode. Step 3: Select the Disk You Want to Use. Oct 21, 2023 · Safe Mode: select a volume, hold the Shift key, and click Continue in Safe Mode . Single-User Mode: Command + S. Safe Mode: Shift. Locate Disk Utility in Applications > Utilities and open it. Mar 5, 2022 · That way, you get to avoid entering the Startup Manager or the Startup Options screen every time you boot up your Mac. Replace path with the path to an available startup disk on the remote computer. In Aug 1, 2010 · Double click on the HD Folder and go to Users and you will see it there. On an Intel Mac: Power on your computer while holding down the Command+R keys until you see the "macOS Utilities" screen. If FileVault is turned on, this also unlocks your disk. launch mach_kernel (or EFI on Windows / Linux side of things) and exit. Tip 2. If a startup disk name contains spaces or other special characters, you may need to precede each with the 2 days ago · The position of buttons and background color may slightly differ in different operating systems, but the overall process remains the same. Select Startup Disk. Check your login items to learn if any of them are incompatible. See Change your Mac startup disk. In the Recovery app, choose Utilities > Terminal. This can take fairly long, depending on the speed of your external drive Jan 11, 2024 · Hold the Mac power button until the Recovery Mode appears on the screen. Or use Option-D to start up to this utility over the internet. Step 2: Open Disk Utility. Startup disk list is empty. See Use macOS Recovery on an Intel-based Mac or Use macOS Recovery on a Mac with Feb 19, 2021 · Under the Utilities menu are items for the Startup Security Utility (helpful when you wish to boot from an external disk or bootable USB installer disk), Terminal, and Share Disk. Set the Format type to Mac OS Extended (Journaled) or APFS - only for SSDs. And since you only have one disk, this is your startup disk — all 500GB. Unplug any external peripherals (disk drives, printer, etc . ) Hold down the T key and start up your Mac. By default, the startup disk is the built-in hard drive on the Mac, known as Macintosh HD. Select an administrator account, then click Next. Click the lock and enter your password to change the settings. WARNING: When selecting a network startup volume, make sure you select a network startup volume and not a . Learn If your Mac successfully starts up in safe mode, choose Apple menu > Restart to restart your Mac normally. 6 days ago · 2. To change these settings, choose Apple menu > System Settings, click General in the sidebar, then click Startup Disk on the right. If you don’t see Macintosh HD in Disk Utility. 2. Hold the Command and R keys and release them when you see the Recovery Mode. Choose a different startup disk before restarting your Mac: Choose Apple menu > Startup Disk, select a startup disk, then click Restart. Apr 8, 2023 · T: Target Disk Mode If you have an Intel-based Mac user Target Disk Mode to make your drive available to another Mac using a USB, USB-C, or Thunderbolt cable. Start up in macOS Recovery. When the Target Disk Mac starts switching on, click System Preferences > Startup Disk. Once that's loaded, I got a screen similar to the following. If you want to erase any other type of storage device: Double-click Disk Utility in the /Applications/Utilities folder. Restart the Mac and instantly hold Command + R keys to boot Mac into macOS Recovery mode. After clicking on Startup Disk, you’ll see the available disks that your Mac can start up from. Now, you’ll be taken to the macOS Utilities screen. Note: If a disk is encrypted, select and click Unlock. By default, the Startup Disk is the disk named “Macintosh HD” and the user’s applications, files, and any data are also stored on this disk. Good luck! SK Apr 12, 2010 · In order to boot your Mac from a disk in the CD / DVD drive, you’ll first want to insert disk into the drive, then you can either shut down the Mac, or reboot the Mac. Press the power button on your MacBook or plug in the power cable to your Mac mini, Mac Studio, or iMac. Apr 15, 2024 · Or click Startup Disk and choose a different startup disk. Aug 2, 2023 · Tip 1. May 16, 2017 · In addition, some third-party wireless keyboards may have a problem with keyboard shortcuts at startup. Nov 12, 2018 · It’s surprisingly easy to change your startup disk, so here are the quick steps: Choose Apple Finder menu > System Preferences. N: start up from a NetBoot server, if your Mac supports network startup volumes. 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. Click the arrow directly below the drive. 7. ) Turn your Mac back on. Use the Disk Utility app on your Mac to repair your startup disk. Follow the steps for Apple silicon and Intel-based Macs, and how to set a default startup disk for every boot. To restart the Mac from the command line immediately, run the following command: sudo shutdown -r now. May 13, 2024 · Then select Options > Continue and enter the password for your account when prompted. On an Intel-based Mac: Press and hold the Option key, then press the power button to start up your Mac again. Choose View > Show All Devices. ) Open Startup Disk settings for me. Disk Jan 3, 2021 · Here’s how: Connect the drive you want to use as a startup disk to your Mac. Note that your Mac boots from the new disk after you restart it. Select the disk you want to use as a startup disk. Go to Utilities, launch Disk Utility, and click on View. Once you have booted, check to see what you have selected as your startup disk (Preferences --> Startup Disk) Nov 4, 2019 · To revert back to a previous version of macOS you need to erase the whole physical drive and either reinstall macOS or restore from a pre-Catalina backup. Here's what I did to solve it: Shutdown the Mac. WARNING: When selecting a network startup volume, make sure you select a network startup volume Apr 2, 2024 · Mountain Lion 10. Follow the steps to connect, format, install, and select your storage device as the startup disk. After the external drive is created To get back to your internal drive as the startup volume, open the Startup Disk preference pane while macOS is running on the external drive and select the internal drive. Click "Restore," and Disk Utility will start the copying process. The boot volume may still need to be replaced. Learn how to use macOS Recovery on an Intel-based Mac. Highlight things there and do a Get Info, CMD-I, to see how big those files are in MB/Megabytes and which ones are taking up the most room. 3. With the more recent versions of macOS you will need to click "View" within Disk Utility and select "Show all devices" before the physical drive will be shown in the left pane of Disk Utility. Lion 10. Hold the keys until the grey screen goes off completely (the machine should be restarting). After Feb 13, 2018 · Click on the Erase tab in the Disk Utility toolbar. ) to help narrow down the cause. It contains the bootloader, which is the program that starts the boot process and locates the operating system files. " 2. (You may need to Dec 24, 2022 · 1. N: Start up from a NetBoot server, if your Mac supports network startup volumes. Select your startup disk, then restart your Mac. Terminal: Change settings via the command line. pkg) file within. Click the Lock icon and enter your Mac’s account password to unlock changes. Sep 14, 2019 · To launch your Mac in safe mode, simply press Shift on startup. Select your startup disk. Verbose Mode : Command + V. Change the startup disk. Feb 2, 2024 · At the login window, enter your user account password to log in to your Mac. Oct 26, 2015 · Begin by checking the Desktop for any files you don't need, and move them to the Trash. This will take you to the Startup Disk and Options screen. Click the gear icon labeled Options. Next, select the gear icon, and hit the Continue tab to successfully enter Recovery Mode. If you don’t see the volume you want to use, wait a few moments for Startup Manager to finish scanning connected drives. See Transfer files between two Mac computers using target disk mode. Steps to format the Mac startup disk: Step 1: Boot your Mac into macOS Recovery mode. Select your Mac startup disk and click First Aid > Run to repair the disk. Sep 14, 2015 · To change your default startup disk, use the Startup Disk pane in the System Preferences application. Click the lock at the bottom left to unlock the preference pane. Select the bootable installer, then click Continue. dmg file to open it and see the package (. Press "Enter" to run the command and change the startup disk. Click on the Startup Disk icon. Click the gear icon labeled Options, then click Continue and this will bring you into Recovery Mode. In the drop down panel set the partition scheme to GUID. Apple silicon: Turn on your Mac and continue to press and hold the power button until you see the startup options window. bphpdxegsiwtorcikuyo