'This copy of the Install OS X El Capitan application can't be verified. It may have been corrupted or tampered with during downloading. ' OS X could not be installed on your computer. No package were eligible for install. Contact the software manufacturer for assistance. Quit the installer to restart your computer and try again.
OS X could not be installed on your computer.
No packages were eligible for install. Contact the software manufacturer for assistance.
Quit the installer to restart your computer and try again
Oh dear… When trying to install OS X 10.11 (El Capitan) you may encounter this message. This happens because the the installer certificates are no longer valid when checked against the clock of your mac.
- How to fix “macOS could not be installed on your computer” 1.Restart your Mac in Safe mode. Safe mode disables startup items, launch agents, and everything else except the bare minimum macOS needs to function. Restart your Mac from the Apple menu or by holding down the power button, and press Shift until you see the Apple logo.
- During the installation of OS X El Capitan on my Mac Book Pro, the install fails and I am left with 'OS X Could not be installed on your computer File System verify or repair failed. Quit the installer to restart your computer and try again.' No matter how many restarts I do it does not install. Also repair does not work in disk utility.
Don’t panic though as this is easily fixed using Terminal, so don’t restart immediately.
El Capitan Could Not Be Installed On Your Computer
- Click Utilities on the menu bar
- Select Terminal
- Type date 062112422016
- Exit Terminal
- Click Restart
Install El Capitan On Mac
When you restart the mac and try the installer again it will now believe the certificates are valid and will continue as it should.