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. Download: OS X El Capitan This will be downloaded as a disk image called InstallMacOSX.dmg. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, which has the name InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder.
Trying to install El Capitan on using the USB drive method on my mid 2012 13' macbook pro (9,2) and I can't seem to get it to work at all. Using a PNY CS1311 240GB SSD. When it begins installing El Capitan I get about a minute before it stops and says 'OS X could not be installed on your computer. Couldn't complete copy'. I've tried a few times without any luck, and upon booting my laptop for the first time with the SSD I erased, then formatted with OS X Extended (Journaled) and GUID partition map, so I know it's formatted correctly.
I've successfully installed OSX on my old HDD using the same USB drive so I'm not really sure if that's the issue.
Install El Capitan On External Drive From High Sierra
Any advice is greatly appreciated.
El Capitan Boot Disk
Posted on Apr 23, 2016 3:50 PM