![]() I cannot use the package installer from the download provided by Apple to create the installer App for El Capitan. I’ve only got a Mac with Big Sur and Apple Silicon.I’ve wiped all data from the installed SSD and had to boot from an external disk. It’s the model MacbookPro5.5 and Apple supports macOS El Capitan 10.11 as latest available version. In the next video I will show you how to do a clean install this OS X El Capitan Installer that you have just created.I’m trying to sell a 2009 MacbookPro. So to save yourself getting caught out this way the USB is a great step. Also Apple updates their OS X software once a year and then makes their old version unavailable. Because if you ever want to go back a version or install OS X on a different Mac its good to have this backed up copy. Its always helpful to keep a back up of OS X versions. ![]() Once this has completed you should then be able to use the USB drive to do clean installs of OS X on almost any Mac hardware or computer. You should see the name of the USB change from whatever its called when you plug the USB in to Install OS X El Capitan. Remember to change the name of your USB device to ElCapInstaller if you miss this step the code will error out with something like incorrect syntax error. This should be your Admin accounts user name and password. Sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/ElCapInstaller -applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app -nointeractionĬopy and paste the code into a Terminal window and press enter, you will be prompted for a user name and password. In this video I didn’t take any chances and I use a 16GB USB drive, which are quite cheap to buy these days. There is a few code changes so just be aware of that.Īgain you will need a computer running Mac OS X and you will also need a 8GB or larger USB drive. The process is very simular to the other OS X installer videos that we have done in the past. And we have the video on how to create an OS X El Capitan installer USB. ![]() We previously showed 123myIT users how to create an OS X Yosemite and Mavericks USB drive. This video will show you how to create an OS X El Capitan Installer USB. ![]()
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