Createinstallmedia El Capitan

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You need a copy of the El Capitan installer to make a bootable USB. The El Capitan installer is downloaded to the /Applications folder, with the file name 'Install OS X El Capitan.' If you've installed El Capitan and want to create a bootable installer, re-download the installer from Apple. 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. El Capitan Bootable Installer (El Capitan DMG) Now that you have the El Capitan “.app” file, you can use it to update OS X on multiple Macs. 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.

El Capitan Download. 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. El Capitan Bootable Installer (El Capitan DMG) Now that you have the El Capitan “.app” file, you can use it to update OS X on multiple Macs. If you’re looking for a fresh installation, you need to create the bootable installer for El Capitan. One way to do so is from the El Capitan DMG (InstallESD.dmg) file.

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

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.
Createinstallmedia

Big Sur:*

Catalina:*

Mojave:*

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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 and a gear icon labled Options.
  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

El Capitan Createinstallmedia Command Not Found

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.

Mac operating system’s twelfth major version is the El Capitan Installer (version 10.11). All the Mac computers which don’t have the privilege to upgrade to MacOS High Sierra or the computers that need to upgrade to El Capitan first, can download this twelfth version on the computer. This is the very last version of the Mac operating system which comes under the name OS X. And it is named as ‘El Capitan’ after the formation of a rock in the Yosemite National Park. El Capitan Installer is the post version to the Yosemite, and it was built by adding up more improvements to the Yosemite. In this version of the Mac operating system, the Apple Inc. has focused on the performance, stability, and security of the computer. Anyone who is interested can download it on the Mac PC.

Createinstallmedia El Capitan Command Not Found

How to download El Capitan Installer?

If you want to upgrade to OS X El Capitan, first you have to collect gather your Mac PC and then download the El Capitan Installer. That’s what we are going to do now.

  1. Go to the App Store and open the El Capitan page there.
  2. Then you must click on the ‘Download; button on the El Capitan Page.
  3. If your Mac PC is compatible to perform this upgrade, a file named ‘Install OS X El Capitan’ will download to your Applications folder.
  4. The installer will open automatically after finishing the download process. All you have to do next is click on the ‘Continue’ button and follow the onscreen instructions.

Upgrade Mac OS Version with El Capitan Installer while Protecting your Data

Before executing the Upgrade, you must prepare the Mac PC for the El Capitan Update. For that, gather these requirements first.

  • The Mac PC must have at least 2GB of memory and 8.8GB of storage space.
  • The PC must have at least 45% of battery life.
  • Connect the Mac PC to Wi-Fi or any other internet connection.
  • The Mac Apps must be up to date with the latest versions.
  • Take backups of all your personal data and present OS of the Mac PC.

Important! It is very important to backup your important data on the Mac PC to an external storage device because it will help you to avoid the data loss issues. If any case, you forgot to backup the data, your data may be lost while executing the El Capitan Installer update. So make sure you make a backup of the device data.

How to use El Capitan Installer for a Clean Install?

01. El Capitan Clean Install on Empty Volume with El Capitan Installer

This is the easiest method for the clean install. Here, you can install the OS X El Capitan Installer onto an empty volume, or you can use a storage space that has the content which no longer needed and don’t mind removing. What it matters here is that you don’t use the current startup volume as the destination here. What makes this method easier is the fact that it is possible to perform this clean install while booted from the current startup drive. You don’t need a special, custom-made startup environment for the empty volume clean install. All you have to do is, start up the installer and go.

02. El Capitan Clean Install on Startup Volume with El Capitan Installer

El Capitan Create Install Media

This is the most common method of the two. Usually, the clean install process deletes the contents of the destination drive. Therefore, if you choose the startup drive method to perform the clean install of El Capitan Installer, you have to follow some extra steps as well.

  • First, you have to create a bootable USB flash drive that has the Installer of OS X El Capitan.
  • Then erase the startup drive.
  • After then, start the clean install process.

How to Create El Capitan Installer with USB?

El capitan download

Requirements

  • The USB flash drive must be at least 8GB
  • El Capitan Installer must be on the Mac PC’s Applications folder.

Process

  • Plug the USB drive into the Mac PC with the Installer of the El Capitan on it.
  • Rename the USB driver using an easy to remember and use name. (For the ease of the steps ahead, I will rename it as ‘ElCaptIns’)
  • Be sure that the Installer of the El Capitan named ‘Install OS X El Capitan.app’ is in its default location (Applications folder).
  • Select and copy the text of the below-mentioned terminal command.
    • sudo/Applications/InstallOSXElCapitan.app/Contents/Resources/createinstallmedia --volume /Volumes/ElCaptIns --applicationpath /Applications/Install OS X El Capitan.app
  • Now you can launch the terminal in the Applications/Utilities/
  • In this step, it deletes the data in the destination drive. So make sure it doesn’t contain any valuable data and paste the copied command into the terminal, then press ‘Return’.
  • When the windows prompted, enter the admin level account password of yours and press to Return.
  • Then a message telling “To continue we need to erase the disk at /Volumes/ElCaptIns. If you wish to continue, type (Y) then press return:” will emerge. You can type ‘Y’ and press to return to continue. You are already set if you don’t see this message.

USB installer and El Capitan Installer in Apple Store

El Capitan Installer is only available in the Mac App Store. So you can only download it from the App Store. By the way, having a USB installer to perform the El Capitan is a good idea. Because having a copy of the OS version in a separate device ensures that you always have a backup plan to install it or re-install it on the PC. When you have the USB installer with the El Capitan Installer in it, you no longer need the internet connection or the access to the Mac App Store to perform the upgrade.

What is createinstallmedia?

“createinstallmedia” is a unix program hidden inside the OS X Installer which is provided by the Apple Inc. to create a bootable installer drive. createinstallmedia is the ideal and the easier to use tool if you are comfortable to use the terminal. This is only available for the OS versions of Lion (OS X 10.7) and above.


System and Hardware Requirements for El Capitan Installer

System Requirements

  • iMac models from mid 2007 or later
  • MacBook models from late 2008 or later
  • MacBook Pro models from mid 2007 or later
  • MacBook Air models from late 2008 or later
  • Mac mini models from early 2009 or later
  • Mac Pro models from early 2008 or later
  • Xserve models from early 2009

Hardware Requirements

  • OS X v10.6.8 or later
  • 2GB of memory
  • 8.8GB of available storage
  • Some features require an Apple ID (terms apply)
  • Some features require a compatible Internet service provider (fees may apply)

FAQs:-

01. What is the best method to install El Capitan?

Download Os X El Capitan Dmg

You can either use the default method to upgrade install or clean install methods to get El Capitan Installer but, without any doubt, Clean Install is the best method to upgrade your Mac OS. I hope all the above facts prove that.

02. How to save previous data when upgrading the OS X?

Simply, take a backup by using the Time Machine.

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  1. Open the Time Machine app.
  2. Click on the ‘Select Backup Disk’.
  3. Select the external drive or internal location where you want to save the files.
  4. Click on the ‘On’ to turn on the Time Machine.
  5. Click on the Arrow Clock icon in the Finder Bar at the top of your screen and select ‘Backup Now’.

03. Is it secure to install El Capitan without Apple Store?

No, it is not safe to get El Capitan Installer outsider of the Apple Store. It is only safe to get this OS upgrade from the Mac App Store. Besides, there is no such external place to get this OS upgrade. I have provided the steps to install El Capitan in the above of this site. Just follow those steps and upgrade your Mac PC to the El Capitan.


My OS now is Sierra, I want to create a bootable installer for 'EI Captian'.


I use the command below, and it turns out 'sudo: /Applications/Install OS X EICaptian.app/Contents/Resources/createinstallmedia: command not found'.




The same happened when I intend to create a bootable installer for 'Sierra'. (Once I thought it may not be allowed to create a lower version OS installer on a higher OS ?! )


So, how can I solve it?! I want to create a bootable installer on my 'Sierra'.

MacBook Air (13-inch, Early 2015)

Posted on Nov 17, 2016 4:05 AM