Apple OS X El Capitan beta was first released to developers in July 2015 and was released to the millions of Apple consumers worldwide September of 2015, following several beta releases. This version of the Apple Mac OS X marks a significant milestone in Apple Mac OS history for many reasons. It was the 12th major release of the Mac OS X line, since the introduction of the new brand in 2002 by Apple from its previous product line of Mac OS.

  • OS X Yosemite (/ j oʊ ˈ s ɛ m ɪ t i / yoh-SEM-it-ee; version 10.10) is the eleventh major release of macOS, Apple Inc.' S desktop and server operating system for Macintosh computers. OS X Yosemite was announced and released to developers on June 2, 2014, at WWDC 2014 and released to public beta testers on July 24, 2014.
  • This is going to take a while as we're downloading the entire 8GB+ macOS installer, so it's highly recommended to read the rest of the guide while you wait. Once finished, you'll find in your /macOS-Installer/ folder a DMG containing the macOS Installer, called InstallmacOS11.1-20C69.dmg for example.

Download El Capitan OS X is also significant since it’s the last version of Apple Mac OS X releases as its successor Sierra was released in the year 2016 under the brand macOS. El Capitan is a rock formation found in Yosemite National Park, which gives out the meaning that the new release is a solid version of its predecessor, Yosemite. The naming convention to use important landmarks of Northern California started with the Apple release of Mavericks.

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At the time of release, El Capitan was promoted as a significant release by Apple similar to how they promoted Mavericks and Yosemite upgrades which were the predecessors of El Capitan.

Brief Guide For Download El Capitan

In this article, we’ll also discuss few things that you should do before you upgrade your OS to the new Download El Capitan version in order to make sure your computer is all ready for the new upgrade including whether your Mac is compatible both in terms of hardware and software. There we will discuss the minimum system requirements and supported Mac devices released in the past.


Installation Methods For Download El Capitan

1. Download El Capitan Mac OS X from scratch while upgrading the current Mac OS version

The new Apple El Capitan supports two installations methods. As in the case of many other operating system installations, Apple El Capitan also provides an option to upgrade from your current OS version or the option to install the new download El Capitan Mac OS X from scratch. The default method which is the upgrade installation option will try to install OS X El Capitan to your Mac device while protecting your user data and app data. This is currently the most frequently used method of upgrading to the new version of Mac OS X and also the easiest too. If your Mac computer is in very good shape and running smoothly, it is recommended to install using this method.

2. Download El Capitan and install fresh the Mac OS without upgrading current Mac OS version

The second method of installations is the clean install method. It basically erases the entire content of your chosen drive and installs a fresh, smooth version of the new operating system which is download El Capitan Mac OS X in this case. This would mean no older versions of the Mac OS X, system applications and user data all will be wiped out with a clean install. This is an excellent choice to test an operating system on a separate disk drive or a partition in cases where you have had prevailing software issues on your computer which you have been unable to fix. Therefore when these issues become a major headache for you, your best option is to perform a clean install of the OS X – El Capitan. Although you may have to let go of your apps and their data, it becomes a smaller price to pay for when compared to running the system in its current state with a truckload of software issues.

The upgrade install option is pretty straightforward. Therefore in this article, we will only discuss the download El Capitan andclean installation of El Capitan Mac OS X.


Download El Capitan iso and dmg installer
  • Supported version: 0.6.7

While you don't need a fresh install of macOS to use OpenCore, some users prefer having a fresh slate with their boot manager upgrades.

To start we'll want to grab ourselves a copy of macOS. You can skip this and head to formatting the USB if you're just making a bootable OpenCore stick and not an installer. For everyone else, you can either download macOS from the App Store or with Munki's script.

# Downloading macOS: Modern OS

  • This method allows you to download macOS 10.13 and newer, for 10.12 and older see Downloading macOS: Legacy OS

From a macOS machine that meets the requirements of the OS version you want to install, go directly to the App Store and download the desired OS release and continue to Setting up the installer.

For machines that need a specific OS release or can't download from the App Store, you can use the Munki's InstallInstallMacOS utility.

In order to run it, just copy and paste the below command in a terminal window:

As you can see, we get a nice list of macOS installers. If you need a particular versions of macOS, you can select it by typing the number next to it. For this example we'll choose 10:

  • macOS 11, Big Sur Note: As this OS is quite new, there's still some issues with certain systems to resolve. For more information, see here: OpenCore and macOS 11: Big Sur
    • For first time users, we recommend macOS 10.15, Catalina
  • Nvidia GPU Note: Reminder to verify whether your hardware support newer OSes, see Hardware Limitations

This is going to take a while as we're downloading the entire 8GB+ macOS installer, so it's highly recommended to read the rest of the guide while you wait.

Once finished, you'll find in your ~/macOS-Installer/ folder a DMG containing the macOS Installer, called Install_macOS_11.1-20C69.dmg for example. Mount it and you'll find the installer application.

  • Note: We recommend to move the Install macOS.app into the /Applications folder, as we'll be executing commands from there.
  • Note 2: Running Cmd+Shift+G in Finder will allow you to easily jump to ~/macOS-installer

From here, jump to Setting up the installer to finish your work.

# Downloading macOS: Legacy OS

  • This method allows you to download much older versions of OS X, currently supporting all Intel versions of OS X(10.4 to current)

    • Legacy macOS: Offline method
      • 10.10-10.12 Supported
    • Legacy macOS: Online method(10.7-10.15 Supported)
      • 10.7-11 Supported
    • Legacy macOS: Disk Images
      • 10.4-10.6 Supported

# Setting up the installer

Now we'll be formatting the USB to prep for both the macOS installer and OpenCore. We'll want to use macOS Extended (HFS+) with a GUID partition map. This will create two partitions: the main MyVolume and a second called EFI which is used as a boot partition where your firmware will check for boot files.

Mac Os Yosemite Installer App

Yosemite
  • Note: By default, Disk Utility only shows partitions – press Cmd/Win+2 to show all devices (alternatively you can press the View button)
  • Note 2: Users following 'Legacy macOS: Online method' section can skip to Setting up OpenCore's EFI environment

Next run the createinstallmedia command provided by Apple(opens new window). Note that the command is made for USB's formatted with the name MyVolume:

This will take some time so you may want to grab a coffee or continue reading the guide (to be fair you really shouldn't be following this guide step by step without reading the whole thing first).

You can also replace the createinstallmedia path with that of where your installer's located (same idea with the drive name).

Legacy createinstallmedia Commands

Pulled from Apple's own site: How to create a bootable installer for macOS(opens new window)

# Legacy Setup

For systems not supporting UEFI boot, see below:

Setting up Legacy Boot

To start, you need the following:

  • BootInstall_IA32.tool or BootInstall_X64.tool
    • This can be found in OpenCorePkg under /Utilties/LegacyBoot/
  • Install USB(Created above)

Within your OpenCore build folder, navigate to Utilities/LegacyBoot. Here you'll find a file called BootInstall_ARCH.tool. What this does is install DuetPkg to your desired drive.

Mac

Now run this tool in terminal with sudo(This tool will likely fail otherwise):

Yosemite

This will give you a list of available disks, choose yours and you will be prompted to write a new MBR. Choose yes[y] and you'll be finished.

This will provide you with an EFI partition with either a bootia32 or bootx64 file

# Setting up OpenCore's EFI environment

Setting up OpenCore's EFI environment is simple – all you need to do is mount our EFI system partition. This is automatically made when we format with GUID but is unmounted by default, this is where our friend MountEFI(opens new window) comes in:

You'll notice that once we open the EFI partition, it's empty. This is where the fun begins.

Mac Yosemite Installer Download

# Now with all of this done, head to Setting up the EFI to finish up your work





⇐ ⇐ Apple Store Os X El Capitan
⇒ ⇒ Macbook Allow Downloads From Anywhere