El Capitan Could Not Be Installed
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
Jun 22, 2018 The first of the troubleshooting steps walk you through Safe mode options and then we suggest the Recovery mode. The last of the options shows you how to remove third-party KEXT files using simple terminal commands and then try the install process. How-To Fix macOS could not be installed issue Fixing the Install issue using Safe Mode on your. Jun 21, 2016 Installing El Capiton on an old Mac Book Pro today, I received the error: 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.
El Capitan Could Not Be Installed On Your Computer
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 This happens because the the installer certificates are no longer valid when checked against the clock of your mac.
Don’t panic though as this is easily fixed using Terminal, so don’t restart immediately.
- Click Utilities on the menu bar
- Select Terminal
- Type date 062112422016
- Exit Terminal
- Click Restart
El Capitan Cannot Be Installed On Macintosh Hd
When you restart the mac and try the installer again it will now believe the certificates are valid and will continue as it should.