I was able to get 10.11.6 to successfully install and boot, and have eliminated most problems with it.
This is my specific hardware. USB3 and Ethernet were tracked down in ioreg. I cant guarantee this will work for any other model, but this should help at least some people.
Intel Core i7-2640m - Series 6 - HM67 chipset - 6GB DDR3 - HD3000 1366x768- Realtek RTL8105 Ethernet - Fresco Logic FL1009 USB3 - Azureware Broadcom BCM94352HMB wifi/bluetooth (this is replaced from the OEM Intel Centrino card)
Rehabman was a HUGE help in figuring this all out.
First off, previous posts state that if you had Realtek 8100 ethernet you had Renesas/NEC USB3, and if you had Realtek 8111 Gigabit you had Fresco Logic USB3.
Turns out, this particular laptop has 8100 Fast Ethernet with Fresco Logic FL1009 USB3. Im not going to write a guide on how to put the El Capitan installer from appstore onto a usb stick. There are plenty of guides out there.
I used a 16GB USB 2.0 stick. USB stick is GUID and formatted HFS+J
Ill give the specific details on what I did unique to make this all work:
Options checked on clover install customize:
Install for UEFI only
OsxAptioFixDrv-64 from Drivers64UEFI
After install, download HFSPlus.efi from https://github.com/J...X64/HFSPlus.efiand copy it to copy it to /EFI/Clover/drivers64UEFI
Remove the folders EFI/CLOVER/kexts/10.6, 10.7, 10.8, 10.9, 10.10, leaving just 'Other'
In the Other folder install the following Kexts:
In google, type injector kext + FL1009 + rehabman. Choose the first result from google. In the 2nd post download the file USBXHCI_FL1009.kext . Place this file in the Other folder as well.
Next we need to install a config.plist file that matches our hardware.
From the file, we need config_HD3000_1366x768.plist. Copy it to your desktop and rename it config.plist
Before putting it in our EFI/Clover folder, we need to modify it, or we will get a kernel panic in AppleIntelCPUPowerManagement.
Use a plist editor, like Xcode or similar to open the .plist file.
In conflig.plist/ACPI rename DropTables to ##DropTables and then rename #DropTables to DropTables
Next under config.plist/ACPI/SSDT/Generate, change CStates and PStates to true for both (YES in Xcode)
Save the changes and place the config.plist file on your desktop in /EFI/Clover/ overwriting the file thats there.
Done, boot from USB, select the installer and it should do its magic.
From this point update Clover onto the HDD, and install all kexts to the system volume. You'll still need to install kexts and/or DSDT edits for wifi, battery, audio, ethernet, bluetooth, brightness slider, etc. Im not going to get into these. There are several guides out there for these and they are straight forward.