Hi all, If anyone has any tips on this, I'd be very happy to hear them. I'm trying to install Mavericks on a Dell Latitude E6530 (i5-3320M). I have created a USB installer using myhack. When I start up the PC, after the Dell logo, I get a black screen with the white text message "No bootable devices". I have plugged the USB installer into a Dell Latitude E6320 and the installer loads, so it seems the USB drive and the installer are OK. If you have any guidance, please do let me know. Thanks very much, John System Model: Latitude E6530 System Type: x64-based PC Processor: Intel® Core i5-3320M CPU @ 2.60GHz, 2601 Mhz, 2 Core(s), 4 Logical Processor(s) Processor ID: 306a9 Intel HD graphics 4000 BIOS Version/Date: Dell Inc. A09, 13/12/2012 SMBIOS Version: 2.7 Installed Physical Memory (RAM): 4.00 GB Bios boot sequence: USB Storage Device (all other options are disabled) Boot list option: Legacy Advance boot options: enable legacy Option ROMS: enabled Integrated NIC: Enbabled w/PXE is selected SATA operation: AHCI is selected USB configuration: Enable boot support is selected. Enable external usp port is selected Video: the only options are for LCD brightness Security: no passwords are enabled Secure boot: disabled Performance: C-states control: C states is enabled. Performance: Hyperthread control is enabled