To create a bootable USB fo Mac OS X El Capitan you need to be able to convert the
OS X El Capitan; Create the bootable Catalina USB drive. After everything has been downloaded, there is another few steps that you’ll need to take. First and foremost, make sure that that drive has at least 12GB of available storage. Then, plug the USB flash drive into your Mac. Connect the USB flash drive or other volume that you're using for the bootable installer. Open Terminal, which is in the Utilities folder of your Applications folder. Type or paste one of the following commands in Terminal. How to Make a Bootable USB Stick from an ISO File on an Apple Mac OS X fa icon='long-arrow-left' Back to all posts fa icon='pencil' Posted by Lewan Solutions fa icon='calendar' February 10, 2012. I created a bootable USB drive using Windows with Tiger on it using PearPC and TransMac, for PowerPC.
InstallMacOSX.pkg to the Install OS X El Capitan.app, this can only be done on macs
that are capable or running El Capitan, this includes macs that have been upgraded to later OS's.
But crucially does not include macs that came preinstalled from new with a new OS.
I have also shared a complete video tutorial on How To Create macOS Catalina Bootable USB on Windows: Step by Step, you can find the video at the end of this post. Step 1: Download the required files to Create macOS Catalina Bootable USB on Windows. MacOSCatalina10.1519A583 by techrechard (Google Drive + MediaFire).
Macs cannot run an older OS than the one they came preinstalled with.
Unfortunately Apple have not taken in to consideration that users may just want to create bootable
installers for older macs and not actually install the OS.
The mac you tried with that is running Catalina must have come with an OS newer than El Capitan pre-installed.
When you tried to download High Sierra even though you got the warning about it being an older OS than the
one you have installed did it not give you the chance to Download Anyway.
There is a workaround for the El Capitan problem if you are willing to try, read about it here.
https://apple.stackexchange.com/questions/379603/how-do-i-create-el-capitan-installer-on-a-catalina-or-post-el-capitan-installeI have not tried this for myself, but have linked other people to this article who faced the same situation, they reported back with positive results.
Mar 13, 2021 9:45 AM
EI Capitan (10.11) is the last release of OS X. After it, the OS versions are under a name called macOS. From our observation, there are still many people using EI Capitan on their Mac as some of the apps are not running on macOS. Hence, if your Mac was something wrong with it and you need to create a bootable installation media to reinstall OS X EI Capitan on your Mac. Honestly speaking, it is a tough process for EI Capitan and you might receive errors when using the dmg file downloaded from Apple website.
Please don't worry. In this tutorial, we will share you all the necessary steps to make a bootable EI Capitan bootable USB on a Windows 10 PC. Here is a screenshot of our tutorial's output.
P.S. If you have a Mac, then please follow this official guide to create EI Capitan USB installer on macOS by using createinstallmedia command: https://support.apple.com/en-us/HT201372
sudo /Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/USBVolume --applicationpath /Applications/Install OS X El Capitan.app
Preparation
Please get started, there are a few things you should prepare for.
First, a USB drive with at least 16 GB storage as the installation file of EI Capitan (.dmg) is over 5.5GB. USB 3.0 is more recommended as it has faster reading and writing speed. This will save a lot of time.
Secondly, download EI Capitan (10.11.6) DMG file from this link: This is the modified version of Apple's dmg file dedicated for USB booting.
Warning: The download file hosted on Apple.com (InstallMacOSX.dmg) will only work on Mac platform. For creating installation media on Windows, please use the above link instead. The dmg file provided by Apple contains a .pkg file in DMG archive, which will result failure if you are using it on a PC.
Tutorial: How to Create EI Capitan Bootable USB on Windows 10 PC
To make a bootable USB from EI Capitan dmg file, we need a special software in place. In our case, it is UUByte DMG Editor, an award-winning app for creating bootable OS X and macOS USB installer.
Step 1: Install UUByte DMG Editor on your PC and open it from Desktop shortcut. After that, plug in a USB drive into the computer and eject other unused USB devices.
Step 2: Click Burn button from welcome screen and import downloaded EI Capitan DMG file into the program. You will also see USB drive name in second field.
Step 3: Click Burn button at the bottom to write dmg file to USB drive. There is a progress bar on the screen. This tells how much time left for the burning task.
Step 4: Wait for 5-10 minutes and a bootable EI Capitan installation disk is created. You need to wait more time for USB 2.0 device.
Install OS X EI Capitan on Your Mac
Before installation starts, make sure the hardware meets the minimal requirements of EI Capitan. You can check it from here: https://support.apple.com/kb/SP728?locale=en_US
To install EI Capitan from USB, please insert the bootable disk into Mac. Keep pressing Option button during startup. You will see a drive name (Install OS X EI Capitan) on startup window. Click on it to enter into OS X Recovery mode.
From macOS Utitilies window, click Reinstall macOS and follow the screen prompt to install EI Capitan on your Mac.
Make Bootable El Capitan Usb On Catalina Mac
The above is a complete tutorial that shows you how to easily create a bootable USB installer from EI Capitan DMG file on a Windows PC. And this is the easiest method you could find. No complex settings and command line!