Even with a perfect Mac OS X El Capitan 10.11.6 ISO download, you may face issues:
| Error | Solution |
| :--- | :--- |
| "This copy of the Install OS X El Capitan application can't be verified." | Your system date is wrong. Open Terminal from Utilities menu, type date 0101010116 (Sets date to Jan 1, 2016). Retry install. |
| "OS X cannot be installed on this computer." | Your Mac is too new (Post-2015). El Capitan lacks drivers for newer hardware. Use a VM instead. |
| Stuck on "Less than 1 minute remaining" | This is a known El Capitan bug. Wait 15 minutes. Force restart. It will complete on reboot. |
| VirtualBox boots to a white screen only. | You forgot the CPUID mask or EFI settings. Re-run the VBoxManage commands. | Mac Os X El Capitan 10.11 6 Iso Download
Using your newly created ISO:
ElCapitan_10.11.6.iso to the optical drive.VBoxManage setextradata "YourVMName" "VBoxInternal/Devices/efi/0/Config/DmiSystemProduct" "MacBookPro11,3"hdiutil attach /tmp/ElCapitan.dmg -noverify -mountpoint /Volumes/ElCapitan