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usb booting

  1. N

    MP 1,1-5,1 OCLP Bootpicker does not show OpenCore USB boot drive

    Hello, I'm running Open Core Lagacy Patcher on my old Mac Pro 4.1 with Sonoma. I have created a USB bootable install drive with OpenCore as a backup, but when I start the Mac the usb drive is not displayed in OpenCores boot picker, even if I press the spacebar. Does anyone know how to fix this...
  2. Z

    USB Setup error: 5c000000 80001

    When I opened Open Firmware I got an Usb setup error. I was going to install mac os x 10.4. Please help. (I know about the other forum about this)