el capitan usb boot disk

created a boot for el capitan usb drive. It seems to be a good down load from the app store. used machine x disk to create the usb key. No problem. Get to the point of installation and an error message about the possible corrupt files or certificate not valid. some research and found after February 2016, apple stopped validating el capitan, maverick and so on. any suggestions?

some research and found after February 2016, apple stopped validating el capitan, maverick and so on.

I do not understand this reference, you may edit your source.

Try to make the bootable installer using the createinstallmedia from the command line.

Create an installer for OS X - Apple support bootable

Tags: Mac OS & System Software

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