Q: copy of install El Capitan OS X is damaged
-
Aug 7, 2016 10:23 AMby jdo_apple,Hello LabRat2857,
Thank you for using the Apple Support Communities. I know having an issue installing OS X El Capitan is not what you expect. If I understand correctly, you are unable to upgrade from OS X 10.6.8 to OS X El Capitan, as the Install OS X El Capitan file returns an error that the file is damaged. I have 2 suggestions to help resolve your issue.
1. Use safe mode to start up your Mac so that it performs certain checks, delete system cache files, verifies your startup disk, and attempts to repair directory issues if needed. Then try using the Mac App Store to download and install OS X El Capitan again.
Try safe mode if your Mac doesn't finish starting up
Limited graphics performance in OS X recovery or safe mode
2. If you have access to a different Mac computer, you can create a bootable installer for OS X El Capitan on that computer, then use that to startup your Mac and install OS X El Capitan.
Create a bootable installer for OS X
Cheers! -
Aug 7, 2016 10:37 AMby leroydouglas,LabRat2857 wrote:
I have an iMac11.1 with 8GB RAM and over 900GB available memory.
the El Capitan ... has opened with the message:
"This copy of the install OS X El Capitan is damaged and can't be used to install OS X."
900GB is storage. Your 8GB RAM is memory.
This is the message "damaged?" or can't be " verified?"
I would verify you have date & time set to automatic:
> System Preferences > Date & Time> and be sure the “Set date and time automatically” option is checked
