Mac Pro 5,1 > How To Reinstall Mojave

[Guest 5comma1]

Mid 2010 Mac Pro 5,1

Memory 48GB

Firmware 144.0.0.0.0

Sonnet M.2 4x4 PCIe NVMe card

OCLP 2.1.2

flashed RX 580 Pulse

two Dell 27” displays

Mojave 10.14.6

Monterey 12.6.3

Sonoma 14.7.1

 

 

Hello—

 

My inexperience bit me recently when I accidentally erased my Mojave disk (10.14.6)— which was my primary OS and the final OS available for the Mac Pro 5,1. I’ve reinstalled Mojave twice now and each time the process goes smoothly and everything appears normal, but subsequent attempts to boot...

 

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Source: MacRumors