Startup disk
Author: a | 2025-04-25
Startup Disk: Set the startup disk for the Mac. Choose Apple menu Startup Disk. To quit the app, choose Startup Disk Quit Startup Disk. You can also use macOS Recovery to perform Startup Disk: Set the startup disk for the Mac. Choose Apple menu Startup Disk. To quit the app, choose Startup Disk Quit Startup Disk. You can also use macOS Recovery to perform
Disk Image: Preparing a Startup Disk
From this MiniTool article, you can know what the startup disk on your Mac is, what is taking up space on the Mac startup disk, the influence of startup disk full, and how to clear the startup disk space when the startup disk is full or your disk is almost full on your Mac.On This Page :What Is Startup Disk on Mac?What Is Taking Up Space on Your Mac Startup Disk?What Does It Mean When Your Startup Disk Is Full?How to Clear the startup Disk?How to Free up Disk Space on Your Mac?If You Delete Some Important Files on Your Mac by MistakeBottom LineStartup Disk Full FAQWhat Is Startup Disk on Mac?Like a Windows startup disk, the startup disk on your Mac is the disk that saved the operating system on your Mac. It is an important disk on your computer. If the operating system on the disk is corrupted or even the startup disk is damaged, your Mac computer will not boot normally.What Is Taking Up Space on Your Mac Startup Disk?As you know, a Mac computer’s disk is usually not as large as a Windows computer’s disk. As of 2020, Apple has improved the disk capacity and the maximum disk size can reach up to 8TB. But they are the Pro series, which are not widely used.Most of the time, you should not worry about the disk space issue because macOS always do work online. This will not take up much disk space. However, what’s going on if you see a pop-up alert saying Your startup disk is almost full?At this time, you should know what is taking up space on the startup disk of your Mac and then take some measures to clear the startup disk.The hidden website cache takes much space on the startup disk. For example, statistics show that Google Chrome can create numerous cache folders after you visit some web sites. The size of the cache for one site can even reach up to 9 GB. This is quite surprising, but it is true.As time goes on, the free space on the startup disk becomes less and less. One day, you may receive the startup disk full alert.Besides, when a warning of Your disk is almost full pops up, it also means that there is not enough space on your Mac. It is equal to startup disk full. Likewise, you need to remove some files to free up disk space on your Mac computer.What Does It Mean When Your Startup Disk Is Full?When does it mean when you receive your startup disk is almost full alert?It has two main influences:1. You will soon run out of space on the startup disk.Your startup disk is
Disk Image: Creating a New Startup Disk
HomeHow-ToHow to Change Startup Disk on Mac (Sequoia/Sonoma)Summary: This post from Dr.Buho offers a step-by-step guide on how to change startup disk on Mac.A startup disk is a volume on a drive that contains the operating system. You can boot your Mac from different startup disks. If you want to change the startup disk on your Mac, you can check the detailed instructions below.How to Change Startup Disk on Mac OnceThe process of altering the startup disk once on Apple silicon Macs and Intel-based Macs is different. Check how to change the Mac startup disk on boot below.On Apple Silicon Macs:Press and hold the Power button on your Mac until you see the “Loading startup options” screen.On the Startup Options screen, you can select the preferred startup disk and click the Continue button. Your Mac will start up from the disk you selected.On Intel-Based Macs:Press the Power button to turn on your Mac, and immediately press and hold the Option key until you see the Apple logo.Next, use the left or right key to select the target drive that you want to boot your Mac from.Press Enter or click the Up icon to boot your Mac from the selected startup disk.If you have a Mac with an Apple T2 Security Chip, you can’t boot it from an external drive. You need to boot your Mac in Recovery Mode and use Startup Security Utility to change the security settings and allow your Mac to boot from external or removable media.How to Select Default Startup Disk on Your MacIf you want to change a startup disk for your Mac and use it all the time, you can check how to set the default startup disk on macOS Sequoia/Sonoma/Ventura below.Click Apple > System Settings > General > Startup Disk.Select the preferred startup disk for your Mac and click Restart. Your Mac will start from the selected disk every time.If you are selecting a network volume to boot your Mac, you should select the network startup volume but not the network install image. The network startup volume displays as a globe with a folder.How to make startup disk from ISO using Startup Disk Creator
Disk, re-enable Time Machine, test it.Time Machine Alternative - Mac disk clone softwareIf you only want to make a copy of your Mac, just try Mac disk clone software - such as Donemax Disk Clone. This software can help you clone everything stored on your Mac to the external hard drive and make a full bootable clone backup.Step 1. Download and install Donemax Disk Clone on your Mac and connect an external hard drive to your Mac.Donemax Disk Clone For Mac Clone all data from Mac to external hard drive and create bootable clone. Clone HDD, SSD and external storage device on Mac. Create disk image backup for Mac.Step 2. Open Donemax Disk Clone for Mac, then choose OS Clone mode. This mode will clone all data (such as macOS, apps, settings, user files) from the Mac startup disk to the external hard drive.Step 3. Select the external hard drive as the destination drive, then click on Clone Now button to securely clone Mac data to the external hard drive.Once the cloning process gets finished, you can check the cloned data on the external hard drive.If you want to set the external hard drive as the startup disk on your Mac, go to Apple menu > System Settings > General > Startup Disk, then select the external hard drive as the startup disk, click on Restart button.Conclusion:Time Machine is an excellent tool for Mac users because it quickly backs up their files. You can set up Time Machine, change its. Startup Disk: Set the startup disk for the Mac. Choose Apple menu Startup Disk. To quit the app, choose Startup Disk Quit Startup Disk. You can also use macOS Recovery to performDefinition of startup disk - PCMag
If you mistakenly select the network install image, it will reinstall your macOS and may erase all data. So be careful.How to Change Startup Disk on Mac with TerminalIf you are familiar with Terminal commands, you may use Terminal to change the startup disk on your Mac.Connect the USB flash drive or external hard drive that you want to use as the startup disk for your Mac.Open Spotlight Search on your Mac. Search for “Terminal” to open Terminal on Mac.In the Terminal window, type diskutil list and press Enter. This will list all the disks connected to your Mac. The disk marked as “Bootable” is the current startup disk. You can remember the name of the target drive that you want to select as the new startup disk.Next, type the command sudo bless --mount /Volumes/YourNewDiskName --setBoot. Replace “YourNewDiskName” with the actual name of the new startup disk. If the disk name has spaces, you should enclose the entire path of the disk with quotations, e.g., sudo bless --mount “/Volumes/My macOS” --setBoot.Press Enter to change your Mac startup disk.Restart your Mac from the new startup disk.You should use the Terminal commands with caution since the actions cannot be undone and may cause data loss. If you are not familiar with the command lines, it’s not recommended to use them.Fix Mac Startup Disk Not Showing/MissingIf you see a “no startup disk” or “startup disk not showing/missing” error on your Mac, you may try the tips below to fix the issue.Tip 1. Restart your Mac to see if the problem is gone.Tip 2. Repair Mac startup disk in Recovery Mode. Start your Mac in Recovery Mode and launch Disk Utility. Select your Mac startup disk and click First Aid > Run to repair the disk.Tip 3. Reset NVRAM on Mac. Turn on your Mac and immediately press Option + Command + P + R for about 20 seconds.Tip 4. Reset SMC on Mac. Press the Power button and immediately press and hold the Shift + Control + Option keys.Tip 5. If you use an external drive as the startup disk, make sure itWhat Is a Startup Disk? - WorthvieW
Its components.Target Disk ModeTarget Disk Mode allows a Mac to be used as an external hard disk connected to another Mac. To enter Target Disk Mode, turn on your Mac and hold down the T key immediately upon hearing the startup chime. 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. You can start up any Mac with a FireWire or Thunderbolt port in Target Disk Mode.Startup ManagermacOS’ built-in Startup Manager allows you pick a volume to start your Mac up from at boot time, which temporarily overrides your startup disk defaults set in System Preferences. Just turn on your Mac, hold the Option key after the startup chime and release it after Startup Manager appears.System PreferencesTo change your default startup disk, use the Startup Disk pane in the System Preferences application. Your Mac will boot into the selected disk until you choose another one or temporarily override your selection using Startup Manager at boot time.See also:Why and when and how to boot your Mac in Safe ModeHow to boot your Mac in Verbose Mode, or Target Disk ModeChoosing a startup disk on your MacHow to repair disk permissions on a MacPlease bookmark the article for later as you never know when it might come in handy.High disk at startup by LocalServiceNoNetworkFirewall
If you are an Ubuntu user then you don’t need any third-party software to create a bootable USB drive. Yes, this Linux already has an easy to use a software called “StartUp Disk Creator”.Ubuntu’s official Startup Disk creator is a very lightweight tool available since Ubuntu 8.04, even on the latest 20.04/18.04 LTS versions. It has a very simple interface with just three buttons and a two-step process for creating a bootable USB drive using the ISO file of any Linux or Windows OS.So, how to use Startup Disk Creator of Ubuntu, in this tutorial we will see that…How to use Ubuntu Startup Disk CreatorInstall on Ubuntu 20.4 or earlier (optional)If you have installed the full version of Ubuntu Desktop with GUI then the Startup Disk creator will already be there. However, in case not or you are using some other Ubuntu-based Linux distro such as Linux Mint, Elementary, Pop OS, MX Linux, Zorin, or others then you can use the below command.Thus, open a command terminal and run:sudo apt install usb-creator-gtkRun Startup Disk CreatorGo to Applications and search for USB and the disk creator’s icon will appear. Click that to run.Select USB and ISO imageAlthough the Startup Disk creator will automatically show all the connected USB drives and even available ISO images on the system. However, in case it not then to select the ISO file click on the “Other” button and select the bootable ISO file of the OS that you want to write on your flash drive.If you have multiple USB drives, then select the one which you want to use.Make Startup DiskOnce everything is set and you are confirmed that there is nothing important in the Pen drive you are going to use it because the software will format it. Then click on the “Make Startup Disk” button following with Yes button for confirmation.That’s it, once the process gets completed, eject the drive and insert it in the PC or laptop where you want to install an operating system or use it in a Live environment.What is the difference between a startup disk and a bootable disk
Almost full is an early warning for you. It reminds you of cleaning up the startup disk. However, if you continue to use your Mac without cleaning up disk space, more and more data will be saved to the startup disk. One day, your Mac will run out of space and you will not use the machine as normal.2. Your Mac computer will run slowly.Some of you may think that your Mac computer will not be affected when there is space in the startup disk no matter it is much or less. It is wrong.A Mac computer can convert the available free space on the startup disk into virtual memory that you use for day-to-day operations. In theory, there should be at least 10% of free disk space for your Mac to operate. If not, your Mac computer will run slowly and even face big trouble like Mac frozen.When the machine detects that the available space on the startup disk is insufficient, it will give you a warning. This aims to remind you it’s time to clear the startup disk on your Mac.What should you do when your startup disk is full on your Mac? In the following part, we will show you some solutions.How to Clear the startup Disk?If you want to clear your Mac startup disk, you need to delete the unnecessary files on it. Before doing this, you can check the storage space on your Mac.How to Check the Storage Space on Your Mac?Click the Apple menu from the top-left corner of the screen.Click About This Mac from the drop-down list.Switch to the Storage section.After these three steps, you can see the storage information of your Mac disk, including the files’ types, the free space on the drive, and more.If your Mac Startup disk is full, you can do these things to free up disk space:How to Clean the Startup Disk on Your Mac?Remove the App Cache from your Mac.Empty Trash.Delete the unnecessary Time Machine backup snapshots.Delete browser cache.Remove language packs.Use Startup Disk Full Fixer.Tip 1: Remove the App Cache from Your MacThe app cache files are necessary when you want to speed up processes. Once you complete the process, the cache files become useless. But these cache files will stay on the startup disk for a long time unless you manually delete them. When they are useless, they are junk files. To clean up your Mac startup disk, you need to remove them from the machine.Go to Finder > Go > Go to Folder.Type ~/Library/Caches.Go into each folder and then delete the files in it. You can also choose to only delete the files that take up the most space.You can repeat the above three steps. Startup Disk: Set the startup disk for the Mac. Choose Apple menu Startup Disk. To quit the app, choose Startup Disk Quit Startup Disk. You can also use macOS Recovery to perform Startup Disk: Set the startup disk for the Mac. Choose Apple menu Startup Disk. To quit the app, choose Startup Disk Quit Startup Disk. You can also use macOS Recovery to perform
Disk Checking on Startup - Microsoft Community
Looks like no one’s replied in a while. To start the conversation again, simply ask a new question. What to do if Recovery Mode can't find startup disk? iMac Line (2012 and Later) Posted on Dec 28, 2021 9:19 AM Posted on Dec 28, 2021 4:22 PM Welcome to the Apple Support Communities.In Recovery Mode, please go to Disk Utility, and select "View" > "Show All Devices". Select each device (or entry shown), and take a photo of it and upload them all here. This will allow us to see if your startup disk has failed, is corrupted, etc. and identify the proper resolution path.Cheers,Jack Similar questions my imac is not seeing a startup disk My imac restarted after updating overnight and now it can't find the startup disk. 639 1 iMac recovery HD, no HD on the desktop how do I make a startup disk from a recovery HD. No hard disk shows up on the desktop ever 295 1 iMac does not go through the entire startup What do you do if your iMac does not complete the startup? 363 1 missing startup disk on iMacCasper Startup Disk Creator Download
Start up from its built-in startup disk, you can install macOS from macOS Recovery instead.When the installer asks you to choose where to install, select your external storage device before continuing. You may need to click Show All Disks first. 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. Find out how to use Startup Security Utility. After installing macOS on your storage device, you can select that storage device as your startup disk. Your Mac can then start up from it instead of its built-in startup disk. When macOS software updates or upgrades become available: Make sure your storage device is plugged in to the appropriate port on your Mac.Start up from your external storage device instead of your built-in startup disk.Use Software Update to update macOS on your external storage device. Published Date: October 01, 2024. Startup Disk: Set the startup disk for the Mac. Choose Apple menu Startup Disk. To quit the app, choose Startup Disk Quit Startup Disk. You can also use macOS Recovery to performWhat Is Startup Disk on Mac - iBoysoft
For your Mac at boot time.How to start up your Mac from an external volume using System PreferencesYou can use System Preferences to tell your Mac to automatically use optical media or an USB-based external disk or flash storage every time it’s restarted.1) Open the System Preferences application in the Dock.2) Now click the Startup Disk pane. You will be presented with various disk icons.3) Select the system you would like to use to start your computer up.4) Now click the Restart button to start up your Mac using the chosen volume.Tip: Your Mac will now always boot into the selected startup disk. However, you can change that in System Preferences, or temporarily override it through Startup Manager.Full tutorial: how to choose a startup disk using System Preferences.Troubleshooting startup issuesShould you run into problems whilst attempting to boot your Mac from an external storage device, consult our FAQ below. It will help troubleshoot any start up issues you may be plagued with.Is the storage device to an external power supply?Depending on its model and power requirements, it may be necessary to connect your USB storage device to an external power supply.Is the storage device connected and turned on?Make sure your external storage is turned on and connected to your Mac. USB-based external hard disks usually have the power on/off button at the back of the enclosure.Does your disk need repair?If your Mac doesn’t boot from an external volume or the drive doesn’t show up in Startup Manager even though it contains a bootable copy of macOS, it might need repair.The first order of business should be attempting to repair disk permissions in Disk Utility. In the worst case scenario, you might need to reinstall macOS on the external volume.Did you try using a different USB port?If you own a MacBook or MacBook Pro, try using a different USB port if you cannot startup from the external USB storage device.Has the disk been formatted with a GUID partition type?Intel-based Macs support starting from an external USB storage device’s volume that has been formatted with a GUID partition type.Does your Mac shut down automatically upon connecting the disk?Apple states that a MacBook Air contains a preventive measure which prompts the computer to shut down automatically if the connected USB storage device has issue or if the USB port on the MacBook Air itself is damaged.Are you using Boot Camp?If you’re using BootComments
From this MiniTool article, you can know what the startup disk on your Mac is, what is taking up space on the Mac startup disk, the influence of startup disk full, and how to clear the startup disk space when the startup disk is full or your disk is almost full on your Mac.On This Page :What Is Startup Disk on Mac?What Is Taking Up Space on Your Mac Startup Disk?What Does It Mean When Your Startup Disk Is Full?How to Clear the startup Disk?How to Free up Disk Space on Your Mac?If You Delete Some Important Files on Your Mac by MistakeBottom LineStartup Disk Full FAQWhat Is Startup Disk on Mac?Like a Windows startup disk, the startup disk on your Mac is the disk that saved the operating system on your Mac. It is an important disk on your computer. If the operating system on the disk is corrupted or even the startup disk is damaged, your Mac computer will not boot normally.What Is Taking Up Space on Your Mac Startup Disk?As you know, a Mac computer’s disk is usually not as large as a Windows computer’s disk. As of 2020, Apple has improved the disk capacity and the maximum disk size can reach up to 8TB. But they are the Pro series, which are not widely used.Most of the time, you should not worry about the disk space issue because macOS always do work online. This will not take up much disk space. However, what’s going on if you see a pop-up alert saying Your startup disk is almost full?At this time, you should know what is taking up space on the startup disk of your Mac and then take some measures to clear the startup disk.The hidden website cache takes much space on the startup disk. For example, statistics show that Google Chrome can create numerous cache folders after you visit some web sites. The size of the cache for one site can even reach up to 9 GB. This is quite surprising, but it is true.As time goes on, the free space on the startup disk becomes less and less. One day, you may receive the startup disk full alert.Besides, when a warning of Your disk is almost full pops up, it also means that there is not enough space on your Mac. It is equal to startup disk full. Likewise, you need to remove some files to free up disk space on your Mac computer.What Does It Mean When Your Startup Disk Is Full?When does it mean when you receive your startup disk is almost full alert?It has two main influences:1. You will soon run out of space on the startup disk.Your startup disk is
2025-04-17HomeHow-ToHow to Change Startup Disk on Mac (Sequoia/Sonoma)Summary: This post from Dr.Buho offers a step-by-step guide on how to change startup disk on Mac.A startup disk is a volume on a drive that contains the operating system. You can boot your Mac from different startup disks. If you want to change the startup disk on your Mac, you can check the detailed instructions below.How to Change Startup Disk on Mac OnceThe process of altering the startup disk once on Apple silicon Macs and Intel-based Macs is different. Check how to change the Mac startup disk on boot below.On Apple Silicon Macs:Press and hold the Power button on your Mac until you see the “Loading startup options” screen.On the Startup Options screen, you can select the preferred startup disk and click the Continue button. Your Mac will start up from the disk you selected.On Intel-Based Macs:Press the Power button to turn on your Mac, and immediately press and hold the Option key until you see the Apple logo.Next, use the left or right key to select the target drive that you want to boot your Mac from.Press Enter or click the Up icon to boot your Mac from the selected startup disk.If you have a Mac with an Apple T2 Security Chip, you can’t boot it from an external drive. You need to boot your Mac in Recovery Mode and use Startup Security Utility to change the security settings and allow your Mac to boot from external or removable media.How to Select Default Startup Disk on Your MacIf you want to change a startup disk for your Mac and use it all the time, you can check how to set the default startup disk on macOS Sequoia/Sonoma/Ventura below.Click Apple > System Settings > General > Startup Disk.Select the preferred startup disk for your Mac and click Restart. Your Mac will start from the selected disk every time.If you are selecting a network volume to boot your Mac, you should select the network startup volume but not the network install image. The network startup volume displays as a globe with a folder.
2025-04-09If you mistakenly select the network install image, it will reinstall your macOS and may erase all data. So be careful.How to Change Startup Disk on Mac with TerminalIf you are familiar with Terminal commands, you may use Terminal to change the startup disk on your Mac.Connect the USB flash drive or external hard drive that you want to use as the startup disk for your Mac.Open Spotlight Search on your Mac. Search for “Terminal” to open Terminal on Mac.In the Terminal window, type diskutil list and press Enter. This will list all the disks connected to your Mac. The disk marked as “Bootable” is the current startup disk. You can remember the name of the target drive that you want to select as the new startup disk.Next, type the command sudo bless --mount /Volumes/YourNewDiskName --setBoot. Replace “YourNewDiskName” with the actual name of the new startup disk. If the disk name has spaces, you should enclose the entire path of the disk with quotations, e.g., sudo bless --mount “/Volumes/My macOS” --setBoot.Press Enter to change your Mac startup disk.Restart your Mac from the new startup disk.You should use the Terminal commands with caution since the actions cannot be undone and may cause data loss. If you are not familiar with the command lines, it’s not recommended to use them.Fix Mac Startup Disk Not Showing/MissingIf you see a “no startup disk” or “startup disk not showing/missing” error on your Mac, you may try the tips below to fix the issue.Tip 1. Restart your Mac to see if the problem is gone.Tip 2. Repair Mac startup disk in Recovery Mode. Start your Mac in Recovery Mode and launch Disk Utility. Select your Mac startup disk and click First Aid > Run to repair the disk.Tip 3. Reset NVRAM on Mac. Turn on your Mac and immediately press Option + Command + P + R for about 20 seconds.Tip 4. Reset SMC on Mac. Press the Power button and immediately press and hold the Shift + Control + Option keys.Tip 5. If you use an external drive as the startup disk, make sure it
2025-03-30