Power the Workstation on and select 'Install macOS Catalina' from the Clover boot menu. Unplug the installer USB drive from the Macintosh and plug it in to the USB 2.0 port on the front of the Z620 Unique Sleep State Blink Rates = Disabled.Restrict USB Devices = Allow all USB Devices.Embedded Device Security = Device Hidden.Set your BIOS as follows: (F10 to Enter BIOS) Format USB as FAT32, copy the folder contents to root of USB and flash using BIOS menu. V3.96 December 2019 - see attached file in repo. Overwrite or delete the existing EFI folder that’s already there prior to pasting the contents of 'HP Z620 EFI.zip' Copy the contents to the root of your boot drive's EFI mounted partition, the same location to where you just installed the Clover bootloader. When the above process has completed, download the Clover bootloader package and install it to your Catalina Installation USB device NOT THE MACINTOSH YOU'RE CURRENTLY WORKING ON!! using the following options 'Clover for UEFI booting only’
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