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The installer you create can be used to install OS X El Capitan 10.11 on any eligible Mac computer. This is a more convent and less time consuming way to install OS X El Capitan on multiple machines, gives you a handy emergency disk, and enables a fresh OS X install. Please do the following steps: Step 1. Insert the dvd into the mac. Power on your mac holding Command+R to go into the Recovery mode. Step 3: Disconnect your mac from Internet. If you are using wireless go to the right corner of your screen, click on the wireless icon and choose Turn OFF WiFi. If you are wondering if you can run El Capitan on an older Mac, rejoice as it’s possible too. But before your Mac can run El Capitan it has to be updated to OS X 10.6.8. So, here are main steps you should take: 1. Install Snow Leopard from install DVD. Update to 10.6.8 using Software Update. Download El Capitan here. In the following words, I will show the instructions of how to make Mac OS X 10.11 El Capitan USB installer very quick in either Windows or Mac OS X. DOWNLOADSYou need to prepare an USB (8 GB.

There are two recommended installation methods for El Capitan download and install on your Mac PC or Laptop recommended by the Apple. Before use those installation methods you should need to have free space (around 12 GB) on your drive for keeping the installation files when installation is processing. If you do not have free space available on your drive, please use some cleaning software to clean up the drive to remove junk files and unnecessary application data and folders from the drive.

Then you must keep a backup of your previous file, folders, and applications before upgrading the El Capitan download installation. You can use a clone backup tool for backing up your Mac PC or laptop.

Install El Capitan Download On Empty Volume

In this method, you will be installing the Mac OS X El Capitan on an empty drive. The volume doesn’t have any files, folders or applications. There is no any startup volume on your PC when you are going to clean install El Capitan. So you can easily use the El Capitan installer to install the OS X into the clean empty volume.

Install El Capitan On The Startup Volume

In this method, you will be installing the OS X on your existing startup volume. Here you need to keep a backup of your data stored on the existing startup volume. For install the El Capitan on your startup volume, you need to create a bootable USB installer on a separate drive (USB pen drive).

Keep A Backup For El Capitan Download Before Installing.

You need to choose a good backup tool for backing up the existing OS’ files, folders, and applications. There are many tools and applications available on the internet for backing up the Mac OS X El Capitan download.

You can check whether the created bootable drive is working properly by checking system preferences and selecting the startup disk pane and booting the backed up drive.

How To Create A Bootable Installer To Install El Capitan Download

Apple Mac Apps store allows you to El Capitan installer directly. All you need to do is navigate through the Mac Apps store and find the appropriate link to El Capitan download. Next, you need to do is to create a bootable USB installer. Before you do this step please keep more than 12 GB of free volume space to create the bootable USB installer.

Then Follow The Steps That Mentioned Below.

First of all, you need to plug in the USB drive to your Mac PC or laptop. Here you should use a second internal volume for installing the files. Then open the terminal by searching the search bar and type the command createinstallmedia and enter. As soon as you enter the above command, the system will identify the USB drive which is plug in on it. After the recognizing, the system will begin to store the El Capitan installer files on the USB. After a few minutes, the system creates a bootable USB drive that has the El Capitan installer.

Enter the following path to the terminal

Here the El Capitan installer must be in the application folder to do this step.

Demo: -

In this example, the El Capitan installer in the application folder and Myusb is the name of USB drive which is used to boot.

El Capitan Compatible Devices

iMac, Mac Book, 13 inch Mac Book Pro, Mac Book Retina Models, 17 inch Mac Book Pro, Mac Book Black and White, Xserve – 2009, 15 inch Mac Book Pro, Mac Mini, Mac Book Air, Mac Pro

System Requirements For El Capitan Download

OS X v10.6.8 or later, 2GB memory, 8.8GB storage

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 14GB of available storage
• A downloaded installer for macOS Big Sur, Catalina, Mojave, High Sierra, or El Capitan

Create Bootable El Capitan Usb

Create Boot Disk Mac

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.

Bootable Os X El Capitan

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: