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.

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What you need to create a bootable installer

• A USB flash drive or other secondary volume formatted as Mac OS Extended, with at least 14GB of available storage
• A downloaded installer for macOS Big Sur, Catalina, Mojave, High Sierra, or El Capitan

Unpopped Mac Os Download

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

1. Connect the USB flash drive or other volume that you're using for the bootable installer.
2. Open Terminal, which is in the Utilities folder of your Applications folder.
3. 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:

1. Press Return to enter the command.
2. When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
3. 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.
4. 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.
5. 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

1. Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing.
2. Turn on your Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes.
3. Select the volume containing the bootable installer, then click Continue.
4. When the macOS installer opens, follow the onscreen instructions.

Intel processor

1. Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing.
2. Press and hold the Option (Alt) ⌥ key immediately after turning on or restarting your Mac.
3. Release the Option key when you see a dark screen showing your bootable volumes.
4. 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.
5. Choose your language, if prompted.
6. Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.

Learn more

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.

For information about the createinstallmedia command and the arguments you can use with it, make sure that the macOS installer is in your Applications folder, then enter the appropriate path in Terminal:

There are multiple ways to end up with fewer unpopped popcorn kernels, including making sure the microwave is functioning properly and changing popcorn brands. Heating the kernel too slowly is a common cause of unpopped popcorn kernels, which may be the fault of your microwave or stove. Every company evaluates the quality of its popcorn and may have different standards, so sometimes fixing the unpopped popcorn problem is as simple as changing brands. Sometimes changing the popping method can also decrease the number of unpopped kernels. If you are feeling thrifty, some people save all of their unpopped popcorn kernels and pop them again later.

Unpopped popcorn kernels can be caused by heating the kernels too slowly. To avoid this, do not stop the microwave when popping a bag of popcorn, even for just a few seconds. Also ensure the microwave is operating on the correct power percentage, such as 80 to 100 depending on the popcorn package’s instructions. An old or malfunctioning microwave may also be at fault if it can no longer heat to the correct temperatures. When popping popcorn on the stove, follow the package’s instructions carefully.

Unpopped Mac Os 11

Attempting to pop popcorn a second time around is not recommended because it is a potential fire hazard. Some people have no issues repopping a bunch of kernels, however. To minimize the risk, it is best to clean off all the popcorn’s oils with water and then let the kernels dry. Place the kernels in a brown lunch bag and fold it closed. Heat the bag in the microwave for about one minute, using no oil. Most popcorn bags advise against repopping, though, and you can save time by simply switching to a better popcorn brand.

You can change your method of popping popcorn. If the microwave does not work, try using a different kind of popcorn to cook on the stove. There are a lot of different popcorn popping techniques, some of which work better than others.

Mac Os Catalina

If all else fails, buy a different brand of popcorn. The quality of the popcorn used factors into how well it pops, and some of the cheaper brands have been found to leave nearly 50 percent of kernels unpopped after following the package’s instructions. In addition, most popcorn kernels have been harvested then dried because fresh popcorn does not pop well. If the popcorn is over-dried, however, this too will cause it not to pop. Consistently getting a large amount of unpopped popcorn kernels might indicate that the company’s standards are not as high as others.