El Capitan Could Not Be Installed On Your Computer
Installing El Capiton on an old Mac Book Pro today, I received the error:
Oct 02, 2015 Many thanks for your help, I've solved the problem 🙂 But I did reformat Macintosh HD, not the internal drive above it. There was no problem with the internal drive, verify disk and repair disk worked, but none of them were selectable for Macintosh HD and El Capitan couldn't be installed on it. Was trying to instal el capitan on my macbook, the installation starts and after a few minutes stops and a messaging saying the os x could'nt be install on the computer, please contact the software editor to get help. I called apple and they said they can't give me any tech support, i guess cause my computer is too 'old'.
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.
I checked Apple’s support Matrix (it is a very old macbook pro) at https://support.apple.com/kb/SP728?locale=en_GB and it was listed as supported.
After lots of Googling and investigation, I discovered that the date and time were not set to current, the macbook thought it was year 2000.
You can easily reset the time and date by following the steps below:
El Capitan Failed To Install
- Click Utilities on the menu bar
- Select Terminal
- Type date
- Confirm the date is wrong
- Type date 062112422016 (example: June 21st 12:42 2016)
- Exit terminal
- Click Restart
Reinstall Os X El Capitan
Once the Date and time are configured you will be able to install OS X.
Easy fix, for a ridiculous error!