The El Capitan installer file came down to my Applications folder without problem, but multiple repeat attempts to create a bootable USB (16gb) drive using Diskmaker X 5 has failed. The program appears to go through all the steps, but finally the USB drive is never findable as a bootable drive. Install el capitan from usb drive Driver File Name: install-el-capitan-from-usb-drive.exe Driver Upload Date: 16 December 2020 Last Driver Version.
If you use pkgutil to expand the InstallMacOSX.pkg it opens to three items, the Distribution file, InstallMacOSX.pkg and Resources. You can alter the Distribution file to ignore the supported platform check, see below.
Make El Capitan Usb Installer
Creating the Install OS X El Capitan.app on a mac that came with a newer OS than El Capitan.
Download the InstallMacOSX.dmg from Section 4 of How To Upgrade To El Capitan
Double-click to open InstallMacOSX.dmg to Install MacOSX.pkg.
Drag InstallMacOSX.pkg to the Desktop.
Open Terminal, enter the text
Create El Capitan Usb Installer
A folder will be created on the Desktop after a while with the contents of the .pkg file.
In there you will see an item called Distribution, Control-click on that and select Open With
go to Other and select Text Edit.
When the file opens scroll down to the section that reads,
function isSupportedPlatform(){
type in at the end return true; so it now reads as,
El Capitan Usb Installer Not Working
function isSupportedPlatform(){return true;
Now click Save and close the document.
Go back to Terminal and enter the text,
press Return, after several minutes, be patient, (check to see if the prompt has returned to Terminal) a new package will be created on the Desktop.
When created double-click on that and an installation window will open where you will now convert the
new InstallElCapitan.pkg to the Install OS X El Capitan.app which will be placed in your Applications folder.
You can now create a bootable USB using the install app and createinstallmedia,
If you have the time I would be grateful if you could give this a trial, it works here on my mac, but I would like confirmation from yourself or any others reading this that the procedure works on macs that came with macOS Sierra or newer pre-installed. Oh and tell me if my description of the procedure is easy to follow and understand..
Jan 15, 2020 12:58 AM
Are you trying to make a bootable installer? Do you have the El Capitan installer downloaded from the App Store? You cannot make a bootable DVD but you can make a bootable flash drive.
Bootable USB Installers for OS X Mavericks, Yosemite, El Capitan, and Sierra
First, review this introductory article: Create a bootable installer for macOS. Second, see this How To outline for creating a bootable El Capitan installer. Simply replace the Terminal command with the one from the preceding article by copying it into the Terminal window. You will need an 8GB or larger USB flash drive that has been partitioned and formatted for use with OS X.
Drive Partition and Format
- Open Disk Utility in the Utilities' folder.
- After Disk Utility loads select the drive (out-dented entry with the mfg.'s ID and size) from the side list.
- Click on the Erase tab in the Disk Utility toolbar. Name the drive, 'MyVolume'. <---- IMPORTANT!
- In the drop down panel set the partition scheme to GUID. Set the Format type to Mac OS Extended (Journaled.)
- Click on the Apply button and wait for the Done button to activate. When it does click on it.
- Quit Disk Utility.
El Capitan Usb Installer 2020
Create Installer
Open the Terminal in the Utilities' folder. Choose the appropriate command line (in red) depending upon what OS X installer you want. Paste that entire command line from below at the Terminal's prompt:
El Capitan Dmg
Command for macOS High Sierra:
sudo /Applications/Install macOS High Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install macOS High Sierra.app
Command for macOS Sierra:
sudo /Applications/Install macOS Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install macOS Sierra.app
Command for El Capitan:
sudo /Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install OS X El Capitan.app
Command for Yosemite:
sudo /Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install OS X Yosemite.app
Command for Mavericks:
sudo /Applications/Install OS X Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install OS X Mavericks.app
Press RETURN. You will be asked for your admin password. It will not echo to the Terminal window. Then press RETURN again. Wait for the return of the Terminal prompt signifying the process has completed. It takes quite some time to finish. Be patient.
Mar 3, 2018 7:47 PM