The partition is already renamed to 'install_osx'.
I have tried both 16gb and 32gb USB2 drives. Both identified as disk3 on diskutil list.
(1) GPT partition:
# repartition /dev/disk3 GPT, one partition
# EFI will be created automatically
# second partition, "install_osx", HFS+J, remainder
diskutil partitionDisk /dev/disk3 1 GPT HFS+J "install_osx" R
(2)Download and run Clover Installer: - check all the options for UEFI install.
(3)Download HFSPlus.efi and copy to /EFI/Clover/drivers64UEFI
(4) Delete 10.6-10.11 kexts, leaving just ‘Other’ Copied FakeSMC.kext and ApplePS2SmartTouchPad.kext
(5) Copy new 5300…plist to /EFI/Clover/config.plist, replacing old one, rename to config.plist
(5) Createinstallmedia method
Terminal:
# copy installer image
sudo "/Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia" --volume /Volumes/install_osx --applicationpath "/Applications/Install OS X El Capitan.app" --nointeraction
sudo diskutil rename "Install OS X El Capitan" install_osx
Result:
Could not find disk for Install OS X El Capitan