I'm trying to create an El Capitan bootable external hard drive to resurrect one of my older Macs. I'm using a Mac running Big Sur to create the start up disk
I'm trying to create an El Capitan bootable external hard drive to resurrect one of my older Macs. I'm using a Mac running Big Sur and when I download the InstallMacOSX.dmg and open it I see the InstallMacOSX.pkg but I can't run it on my computer because it says my newer Mac isn't compatible with El Capitan. I already new that, but I'm not trying to install it on this computer, I'm trying to install it on an external hard drive
MacBook Pro 15″, macOS 10.13