On an Intel-based Mac: Choose Apple menu Restart, then immediately press and hold one of these key combinations, depending on what you want to do, until you see a spinning globe appear: Install the latest version of macOS compatible with your computer: Press and hold Option-Command-R. I had to get my hard drive replaced on mac book pro (2011) and now am trying to reinstall OSX Lion via internet recovery. When asked to select the disk where I want to install Mac OSX no disks are listed. Was my new hardrive installed incorrectly? MacBook Pro, OS X Mountain Lion (10.8). Start up your computer in macOS Recovery: On a Mac with Apple silicon: Choose Apple menu Shut Down, press and hold the power button until you see 'Loading startup options,' select Options, click Continue, then follow the onscreen instructions. On an Intel-based Mac.
These advanced steps are primarily for system administrators and others who are familiar with the command line. You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time.
What you need to create a bootable installer
- A USB flash drive or other secondary volume, formatted as Mac OS Extended, with at least 12GB of available storage
- A downloaded installer for macOS Big Sur, Catalina, Mojave, High Sierra, or El Capitan
- How to Install macOS on a PC Using the Installation USB. After you have successfully created your macOS installation USB, you will need to remove it from your Mac and plug it into the PC that you want to turn into a Hackintosh. This is a fairly long process that involves formatting the drive in your PC and performing a clean installation of macOS.
- Instructions in this article apply to Mac OS X Jaguar (10.2) and later. Notes on Installing Fonts Both OS X and macOS can use files in various formats, including TrueType (.ttf), TrueType Collection (.ttc), Variable TrueType (.ttf), OpenType (.otf), OpenType Collection (.ttc) and—beginning with Mojave—OpenType-SVG fonts.
Download macOS
- Download: macOS Big Sur, macOS Catalina, macOS Mojave, or macOS High Sierra
These download to your Applications folder as an app named Install macOS [version name]. If the installer opens after downloading, quit it without continuing installation. To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server. - Download: OS X El Capitan
This downloads as a disk image named InstallMacOSX.dmg. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. You will create the bootable installer from this app, not from the disk image or .pkg installer.
Use the 'createinstallmedia' command in Terminal
- Connect the USB flash drive or other volume that you're using for the bootable installer.
- Open Terminal, which is in the Utilities folder of your Applications folder.
- Type or paste one of the following commands in Terminal. These assume that the installer is in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. If it has a different name, replace
MyVolume
in these commands with the name of your volume.
Big Sur:*
Catalina:*
Mojave:*
High Sierra:*
El Capitan:
* If your Mac is using macOS Sierra or earlier, include the --applicationpath
argument and installer path, similar to the way this is done in the command for El Capitan.
After typing the command:
- Press Return to enter the command.
- When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
- When prompted, type
Y
to confirm that you want to erase the volume, then press Return. Terminal shows the progress as the volume is erased. - After the volume is erased, you may see an alert that Terminal would like to access files on a removable volume. Click OK to allow the copy to proceed.
- When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Big Sur. You can now quit Terminal and eject the volume.
Use the bootable installer
Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:
Apple silicon
- Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing.
- Turn on your Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes and a gear icon labled Options.
- Select the volume containing the bootable installer, then click Continue.
- When the macOS installer opens, follow the onscreen instructions.
Intel processor
- Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing.
- Press and hold the Option (Alt) ⌥ key immediately after turning on or restarting your Mac.
- Release the Option key when you see a dark screen showing your bootable volumes.
- Select the volume containing the bootable installer. Then click the up arrow or press Return.
If you can't start up from the bootable installer, make sure that the External Boot setting in Startup Security Utility is set to allow booting from external media. - Choose your language, if prompted.
- Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.
Learn more
For more information about the createinstallmedia
command and the arguments that you can use with it, make sure that the macOS installer is in your Applications folder, then enter the appropriate path in Terminal:
- Big Sur: /Applications/Install macOS Big Sur.app/Contents/Resources/createinstallmedia
- Catalina: /Applications/Install macOS Catalina.app/Contents/Resources/createinstallmedia
- Mojave: /Applications/Install macOS Mojave.app/Contents/Resources/createinstallmedia
- High Sierra: /Applications/Install macOS High Sierra.app/Contents/Resources/createinstallmedia
- El Capitan: /Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia
A bootable installer doesn't download macOS from the internet, but it does require an internet connection to get firmware and other information specific to the Mac model.
macOS installation problem happens all the time. After downloading the macOS installer, you try to install the macOS Catalina/Mojave, macOS Sierra or High Sierra but the installation get stuck. The progress bar has been stuck at 40% or something, showing: 'Installation is in progress. Calculating time remaining.'
If your macOS update also get stuck at 'Installation is in progress. Calculating time remaining.' Here shows you how to confirm if the installation is still going on and how to complete the update successfully.
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1.Check If the Install is Still Going on
Sometimes, it just takes a very long time for you MacBook or iMac to install the macOS Sierra or High Sierra update. So it doesn't necessarily mean that the macOS installation is frozen when the Mac stay at '20 minutes remaining' for two hours. And forcing restarting a Mac during OS installation may cause data loss. Therefore, before taking further action, press Command + L , which will open the log file and shows you if the installation is still going on and the amount of time left.
If you confirm that the installation is frozen, try the following methods to fix.
2. Force Restart Your Mac
Hold down the power button to power off the Mac. Then restart the Mac. After the Mac reboots, try to install the macOS Catalina, Mojave, High Sierra again.
If the installation get stuck when you try to update the Mac from Mac App Store, you may download macOS software from Apple website, which is the Combo updater which includes all the files required to update the macOS.
3. Install macOS in Safe Mode
Sinhala font free for windows 7. Another way to install Catalina, Mojave, Sierra or High Sierra successfully is to install the macOS in safe mode. To get your Mac into Safe mode:
As you Mac start up, hold down the Shift key https://downyload222.weebly.com/draw-io-free.html. until the Apple logo appears.When you Mac is in Safe mode, go to App Store and get the High Sierra update.
4. Reset the NVRAM
If the Sierra or High Sierra installation is still won't complete in Safe mode, you can try to reset the NVRAM. NVRAM is a memory section on your Mac that store data like volume settings, screen resolution.
To reset the NVRAM on Mac, restart Mac and hold down Command + Option + P + R.The Mac will restart with options in NVRAM resetting. Now try to update your Mac.
5. Reinstall macOS in Recovery Mode
This will help you to install macOS Sierra or High Sierra and newer versions, without data loss.
Restart your mac and hold down the Command + R to boot your Mac into Recovery mode.
Click Disk Utility and choose First Aid for your startup drive.
Restart the Mac again when this time, press Command + Option + R to get your Mac in Internet Recovery mode.
Choose Install a new copy of MAC OS and wait for the installation to complete. How to print on mac shortcut.
If you have a Time Machine backup, restore your Mac from the backup in Recovery mode. After the restoration, try to install the macOS again.
6. Clean Install from External Drive
Install New Mac Os
If none of the above methods work for your Mac, you can try to clean install the macOS Sierra or High Sierra from external drive. Here is the complete guide of how to clean install macOS High Sierra on Mac.
7. Recover Mac Files When Catalina/Mojave/High Sierra Installation Is Stuck
After fixing the frozen macOS installation issue, you may found some files missing on your Mac. If so, you can use FonePaw Data Recovery to recover the deleted data from Mac. The program can restore the missing documents, photos and more from hard drive, SD card, USB drive on Mac and Windows PC. Download the Mac version of FonePaw Data Recovery to have a try.
DownloadDownload
Fresh Install Macos
Step 1. Run the program.
Step 2. Select one or all categories: photos, videos, audio, documents, email or others. Then select the hard drive of your Mac. Click Scan.
Step 3. Once the scanning is stopped, you can view the deleted files and choose the needed one to recover to your Mac.
If the macOS installation on your Mac is still stuck or frozen, describe the problem below.