Hi dpw95,
I'm trying this on a e5530 non-vPro model and the installer never starts. I've follwed the instructions exactly as detailed in Jake's post https://osxlatitude.com/index.php?/topic/8506-dell-latitude-inspiron-el-capitan-clover-guide/&do=findComment&comment=54621, deleted the EFI folder on the EFI partition and replaced it with the EFI_CLOVER (renamed to EFI) folder downloaded from Jake's post. I added the E6230.zip files to the CLOVER_EFI.
When the system boots from the USB (in the USB 2 port) I go to Options and add -v to the commands.
Eventually the boot stops at
hfs: setVeryLowDisk: vol:untiltled, freeblks:0, dangerlimit:12
Did you have to modify any other Clover options or add anything else to get this to install?
Sorry but I'm completely new to all this.
Thanks,
herges