- Apple Recovery Mode
- How To Reinstall Os On Macbook Air
- How To Reinstall Os On Macbook
- Mac Os Recovery Mode
- Once your Mac has booted, try re-running the ‘diskutil list’ Terminal command, to see whether this has resolved the issue. Installing macOS via Internet Recovery. Even if you can’t repair your Mac’s recovery partition, don’t panic! As long as you have an active Internet connection, you can reinstall macOS via Internet Recovery instead.
- This process is actually straightforward and simple. Here’s how to reinstall your Mac operating system(OS). Warning: Make sure you do a full backup of your files before you reinstall your operating system. How to Reinstall Mac OS Using Recovery Mode. Using the Recovery Mode is an easy way to reinstall your Mac OS. Follow the steps below to.
If you found that the current macOS performance of your M1 Mac is not well, you can try to reinstall macOS to get a new start. Or when you failed to solve issues like M1 Mac won't turn on or frequent system crashes, you can try to reset your M1 Mac or reinstall macOS Big Sur.
Reinstalling macOS needs to pay much caution because it will decide whether your M1 Mac gets into a new state or becomes a brick.
You can restore your Mac to factory settings by erasing your Mac, then using macOS Recovery, the built-in recovery system on your Mac, to reinstall macOS. Important: Erasing the disk removes all the information from it. Before you start, back up your essential files and information to an external device. Apple: How to completely reinstall Mac OS X?Helpful? Please support me on Patreon: thanks & praise to God, and wit. To create a bootable installer, you need to download macOS installation files on an external storage device formatted with Mac OS Extended via a healthy Mac. Then, install macOS from the created bootable installer. Reinstalling macOS on an M1 Mac is something that looks simple but operates hard.
Follow the detailed ways in this article to reinstall macOS Big Sur on your M1 Mac.
- 1. Reinstall macOS on M1 Mac in Recovery mode
- 2. Reinstall macOS on M1 Mac in Internet Recovery mode
- 3. Use Terminal in Mac Recovery mode to reinstall macOS
- 4. Create and use a bootable installer to reinstall macOS
Reinstall macOS Big Sur in M1 Mac Recovery mode
If your M1 Mac can boot up but performs poorly when running macOS Big Sur, such as Mac runs slowly, try to solve it by reinstalling macOS.
First, you need to enter into macOS Recovery mode:
- Restart your M1 Mac and continue to press and hold the power button.
- Release the keys until you see the hint 'Loading startup options'.
- Select Options and click Continue.
- Type your admin password when asked.
How to get alexa mac address. Then, you can use the Reinstall macOS Big Sur utility to finish the macOS reinstallation on your M1 Mac. How to check storage on mac.
With this approach, your personal data will remain on your PC after macOS reinstalling as long as you won't erase the data.
But for M1 Mac that won't boot due to internal hard drive inaccessible, unmountable, or other issues related to its file system, you need to erase your M1 Mac and then reinstalling macOS. The erasing procedure will make data loss. However, if you have a Time Machine backup, you can restore your M1 Mac with it.
How to avoid macOS reinstallation errors on M1 Mac
As the reinstallation process may occur some errors, macOS Big Sur won't resintall on M1 Mac. Hence, you should take care the following guidelines to enssure successful macOS reinstallation:
- Don't put your Mac to sleep or close its lid before the installation completing.
- When asked to unlock your disk, type your login password for your M1 Mac.
- Don't do any operation when you see that your Mac restart and show a progress bar several times or a blank screen for minutes. It's normal.
- If no disk shown up for the installer or a message says that the installer can't install on your disk, erase your disk first. (Erasing disk will make data loss)
Causes and solutions for macOS reinstallation failure
However, you still failed to reinstall macOS though you were careful enough. It might due to the bug of macOS Big Sur sometimes rather than your misoperations.
If you haven't updated to macOS 11.01 or later:
Your M1 Mac can't automatically switch to Internet Recovery mode though you've connected to the Internet when the recovery volume (contains a copy of macOS Big Sur) on the Internal disk is corrupted.
You can use other ways to reinstall macOS.
An error message may appear during macOS Big Sur reinstallation if you've erased your M1 Mac, like: 'An error occurred preparing the update. Failed to personalize the software update. Please try again.'
You can use the Apple Configurator 2 on the other Mac to revive or restore your M1 Mac
Reinstall macOS on M1 Mac in Internet Recovery mode
For macOS Big Sur 11.01 & later, Internet Recovery mode is fully supported without bugs on M1 Mac. Once the macOS installer can't be reinstalled from the local recovery volume (Because it is corrupted) in Mac Recovery mode, it will automatically switch to Internet Recovery mode if you've connected to the Internet. Then, you can download a macOS installer from the Internet and reinstall macOS.
Apple Recovery Mode
Note: If you connected to a shared network like a hotel network, you might be unable to access the internet in macOS Recovery mode.
How To Reinstall Os On Macbook Air
Other ways to reinstall macOS on M1 Mac
If the above ways are not working for some reason, you can try other ways as replacements.
Use Terminal in Mac Recovery mode to reinstall macOS
If you fail to reinstall macOS neither with the Reinstall macOS feature in macOS Recovery mode nor from the Internet, using Terminal is an alternative.
Before using Terminal to reinstall macOS, you need to back up or recover your data.
- Select Utilities > Terminal in macOS Recovery mode.
- Type the following command in Terminal window and pressReturn.
- Click the Reset Password window. Then choose Recovery Assistant > Erase Mac.
- Click Erase Mac again to make a confirmation. Then, your M1 Mac will restart automatically.
- Select your language when required.
- Click macOS Utilities when you see a message about 'Your version of macOS must be reinstalled' to activate your M1 Mac.
- Click Exit to Recovery Utilities after your Mac is activiated.
- Select Utilities > Terminal again.
- Type the commands as below and then press Return to download macOS Big Sur.
- Enter the following command in Terminal when the macOS downloading process is done. Then, press Return.
- Follow the instructions to reinstall macOS when the macOS installer opens.
Create and use a bootable installer to reinstall macOS
If macOS Recovery mode doesn't work, creating a bootable installer by yourself. To create a bootable installer, you need to download macOS installation files on an external storage device formatted with Mac OS Extended via a healthy Mac. Then, install macOS from the created bootable installer.
Reinstalling macOS on an M1 Mac is something that looks simple but operates hard. Because the situation which you are in decides the macOS reinstalling way you'll choose. This article offers a complete guide to cater for almost all situations you may run into and help you reinstall macOS on M1 Mac successfully.
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How to access and use the Internet Recovery mode on Mac computers?
Apple computers are well-known as stable devices with good performance and hardware specifications. The Mac operating system also includes various self-diagnosis and repair tools. Bear in mind, however, that these features might be susceptible to failure. When built-in tools or software-based solutions do not work, the last and most efficient solution is to reinstall the operating system. All modern Mac computers contain two separate methods to reinstall the operating system (by 'reinstall', we mean installation of a fresh OS X version). You can choose to install the operating system from a startup disk or via Internet Recovery.
In this article, we describe the second method: Internet Recovery to install the operating system version that came with the version of your computer. If your computer was released with OS X Mavericks, using Internet Recovery will install this particular version, while reinstallation from the recovery partition will result in a fresh version of the current operating system. Therefore, if you perform the reinstallation process via the Recovery utility, you will receive the same operating system version that existed prior to reinstallation. The Internet Recovery method is useful if you wish to downgrade the operating system. A big advantage of this method is the ability to bring back the computer to full functionality when software is corrupted. Note, however, that stable internet access is required to perform the reinstallation process via Internet Recovery. An unstable Internet connection can lead to the process crashing and no access to the computer. Therefore, you are advised to use an Ethernet network, rather than Wi-Fi. In this article, we walk through the entire Internet Recovery method. Mac mini apps free.
Table of Contents:
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Requirements to access Internet Recovery Mode
Ensure that the Mac meets the minimum requirements to access Internet Recovery mode. All compatible computers are listed below. Bear in mind that some earlier versions of Apple devices might also use this feature. Apple state that Firmware updates grant access to Internet Recovery mode. If your device is older than the machines listed below, check the Apple firmware updates list here.
- MacBook Pro (13-inch, Early 2011)
- MacBook Pro (15-inch, Early 2011)
- MacBook Pro (17-inch, Early 2011)
- iMac (21.5-inch, Mid 2011)
- iMac (27-inch, Mid 2011)
- MacBook (13-inch, Mid 2010)
- MacBook Pro (13-inch, Mid 2010)
- Mac mini (Mid 2010)
- MacBook Pro (15-inch and 17-inch, Mid 2010)
- iMac (21.5-inch and 27-inch, Mid 2010)
- MacBook Air (11-inch and 13-inch, Late 2010)
If you wish to reinstall the Mac operating system, your network must use DHCP and WPA/WPA security methods. All authentication methods listed below are incompatible with macOS installation via Internet Recovery. If your network uses one of the methods listed, change the setting to a compatible configuration (at least for the purpose of the installation process).
- WEP
- WPA-Enterprise
- Certificate-based authentication / 802.1x
- Proxies (where specific proxy servers must be configured in network preferences)
- Captive Wi-Fi networks (where you click an “Agree” button to access the Internet)
- PPPoE (where there is no router handling the PPPoE connection)
How To Reinstall Os On Macbook
Reinstall operating system by using Internet Recovery mode
Mac Os Recovery Mode
When you are sure that the Mac is able to access Internet Recovery mode, there is another important task before installing the fresh operating system version. After a successful reinstallation process, the computer will contain only the default software (which is delivered with macOS). All personal data and applications that you have manually applied to the hard disk will be erased. To protect your personal data, create a backup with Time Machine or similar software. Finally, when you are ready to reinstall the operating system, click the Apple logo in the menu bar at top of the screen and select Restart or Shut Down. Once the system starts booting and you hear the startup chime, hold down the combination of Command, Option (Alt), and R.
Keep holding these keys until the animated globe appears with the message below stating 'Starting Internet Recovery' and 'This may take a while'. Note: If you are using a Mac laptop, use the built-in keyboard to access Internet Recovery Mode, since keystrokes might not register properly on external keyboards.
Next, select the Wi-Fi network. If you are not using an Ethernet network, click the drop-down menu and select the desired network. You must confirm access to a Wi-Fi network by entering the password. Then press Return on the keyboard or click the checkmark symbol on the screen to continue.
After successful authentication to achieve the network connection, the Mac will begin to download a recovery system image from Apple's servers. You will see a progress bar monitoring the status of the download. Depending on your internet connection, this process may take some time. Ensure that the computer is connected to the power adapter.
When the image is downloaded, the OS Utilities window will pop-up, giving access to the usual features, such as Restore from Time Machine Backup, Reinstall OS X, Get help online, and Disk Utility. From this point, the process will be similar to the reinstallation via recovery partition. Detailed information about how to install the macOS can be found in this article.