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. Feb 02, 2021 Make a Bootable USB Installer for OS X El Capitan. Identify the Version of Mac OS on the Recovery Partition. Install macOS Lion Using a Bootable DVD. Step 1: Right-click the software icon on desktop and select 'Run as Administrator' from the contextual menu. Choose 'Run' when prompted. Step 2: Insert your formatted USB drive, and click 'Burn' tab on the main screen. Step 3: Click 'Browse' button to import macOS dmg file into the program.
I will show you how to download macOS Beta, and then create a bootable macOS Monterey USB Installer Flash Disk!
If you want to install and test macOS Monterey, creating macOS 12 USB installer is the way to go! This will allow you to quickly install the OS on Intel and M1 Macs.
Step 1 – Enroll in Apple Developer Program
I’ll show you how to enroll into macOS Monterey Beta program. 3 different ways are listed below.
1. developer.apple.com = Developer Beta Profile – $99
2. beta.apple.com = Public Beta Profile – Free
3. Seedutil Binary = Pick between Public, Developer & Customer Seed – Free
Step 2 – Download macOS 12 Beta
You can go over to my macOS 12 Full Installer Database to grab the latest InstallAssistant.pkg file
Step 3 – How to create macOS Monterey Beta USB Installer
I have the steps listed below but if you want to watch a short video on the process, here it is.
Step 3 – Install InstallAssistant.pkg
You will now see InstallAssistant.pkg in your Downloads folder. Double click to install it. This package puts the “macOS 12 Install app” into your Applications folder.
Step 4 Erase & Format your USB Flash Drive
Now that you have the macOS 12 Beta app in your /Applications folder you can create your USB Installer! The USB Flash Drive needs to be at least 16GB because the installer is about 12-14GB.
Plug in your USB Flash Drive
Open up Disk Utility and erase your USB Flash drive. Be sure to use Mac OS Extended (Journaled) format.
Step 5 Install macOS 12 Beta to your USB Drive
Open up the Terminal.app from /Applications/Utilities
Os El Capitan Download
2. type in Sudo then space
3. Drag your macOS 12 installer app to the terminal window
El Capitan Bootable Usb Download
4. the full path is sudo /Applications/Install macOS 12 Beta.app/Contents/Resources/createinstallmedia
5. Add the –volume option then drag your USB Flash Drive to the terminal window.
The final full path will look like this sudo /Applications/Install macOS 12 Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled
Hit enter and then enter your account password.
Macbook Usb Boot Drive
From here the files will start to copy to your USB flash Drive. The total time should be about 5-10 min depending on your USB Flash drive speed.
macOS Monterey USB installer