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drives not booting

  1. B

    will not boot. Circle with a slash on a gray screen

    I am not very familiar with Mac comuters. I have this IMac with High Sierra OS installed. I think it might have been erased. Recovery image was deleted / erased. Simply not there. No Backup. No time backup. So any advice on how to get an image and boot disk or another how to. Tried...
  2. 0xCUBE

    macOS 13 Ventura on Unsupported Macs Thread

    This thread will be dedicated to the discussion of running macOS 13.0 on Unsupported Macs Welcome to the new macOS Ventura on Unsupported Macs thread! We're eagerly awaiting for all our community developers and enthusiasts to test out the new version of macOS. Please play it by ear and only...
  3. F

    MP 1,1-5,1 Mac Pro 5.1 Only Spooling Up 3 of 4 Internal Drives.

    I have a 5.1 Mac Pro tower...running 10.13.6 on an SSD out of my broken Imac and 10.14x on a 2 TB PCI drive, Radeon RX 580 8g, internal drives are the 512 apple ssd, 2tb crucial, 2tb 7200rpm and a 6tb 7200rpm....it will only boot 3 of the 4 drives in trays...and it does this in both operating...