Why do you need to download El Capitan through Terminal.

El Capitan is freely available from this link.

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Here are the instructions.

Go to Section 4 and click on Download OS X El Capitan.

This downloads InstallMacOSX.dmg to your Downloads folder.

The next section can only be done on a mac that is capable of running El Capitan,

a mac that came preinstalled with an OS later than El Capitan will refuse to do the next bit.

When downloaded open to InstallMacOSX.pkg, double-click on

that and an installation window will open, this does not install El Capitan

but converts the InstallMacOSX.pkg to the Install OS X El Capitan.app which

you will find in your Applications folder, it should be 6.2GBs in size.

(If the installation window asks which disk you want to install to, you must pick

the disk that you are booted to at the time. Not any internal or external disk that

you want to eventually install El Capitan on, that is for later.)

To start the installation of El Capitan double click on the Install OS X El Capitan.app.

The copy of the install app self deletes after installing El Capitan, so make sure you keep a copy of the InstallMacOSX.dmg

Download El Capitan Os X Installer

if you need it in future, or you could just make a copy of the Install OS X El Capitan.app prior to installing and moving it to

Download El Capitan Os

an external drive for safe keeping. It is also possible to create a bootable USB installer disk using the Install OS X El Capitan.app

Download El Capitan Os X Dmg

in the Applications folder and the createinstallmedia command in the Terminal app.

Read the instructions here,

Download Os X El Capitan Dmg

Sep 2, 2020 12:18 AM