Feb 08, 2020 See if the 09s will boot to Internet Recovery to skip all that - Cmd/R at the boot chimes will give you Recovery from where you can overlay an OS, or Cmd/alt/R will go online to Internet Recovery which will let you completely start afresh with a new format & fresh install. 09 might be cusp for this functionality, so see if you can get as far as the 'spinning globe' followed by a recovery. Nov 24, 2019 I read through it though but what I needed was a way to make a bootable El Capitan USB (for use in an older Mac) while on a newer Mac running Catalina. The OS of the older Mac has been corrupted and cannot boot. Yes I have downloaded El Capitan (InstallMacOSX.dmg) and renamed it to Capitan.app in the Applications folder. . If your Mac is using macOS Sierra or earlier, include the -applicationpath argument, similar to the way this argument is used in the command for El Capitan. Download mac activity monitor. Use the bootable installer Create Bootable Mac Catalina Usb. After creating the bootable installer, follow these steps to use it. Connect your USB drive. Right Click on your USB drive option in TransMac and select Format Disk for Mac. After that, right-click the USB Drive and select Restore with Disk Image. Point to your Mac OS.dmg or.iso file by clicking the add button. After that TransMac will create bootable Mac OS USB within few minutes. Create macOS High Sierra Bootable USB Installer on Windows 10. Firstly, you need to download macOS High Sierra DMG file from the link below. Also, with the DMG your should the download the TransMac software from the link down below, and for the flash drive, you need 8 GB or higher.
- El Capitan Usb Installer
- Make Bootable El Capitan Usb On Catalina Mac
- Create El Capitan Bootable Usb From Catalina
- Make Bootable El Capitan Usb On Catalina Os
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.
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
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,
function isSupportedPlatform(){return true;
Now click Save and close the document.
Go back to Terminal and enter the text,
Make Bootable El Capitan Usb On Catalina Mac
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..
Create El Capitan Bootable Usb From Catalina
Make Bootable El Capitan Usb On Catalina Os
Jan 15, 2020 12:58 AM