i updated to this yesterday and now it wont boot unless i pull out my hard drives and also my wifi says no hardware installed . i am newbee and completely lost. please help
In order to get some help , you could add a signature with all details of the hardware or post a list of the hardware installed and the steps taken before you got to this issue.
It's impossible to help you without further information.
I don’t know what you mean by signature . The only hardware installed is the rx580 and was running high Sierra . A message came Over the top right to down Mojave and I clicked yes to install. It was installed over the high Sierra . And followed all the prompts to update . I was getting a black screen and I removed the rx580 and put the stock gpu which allowed it to complete the download. Now for some reason the WiFi says no hardware installed.
Early-2009 AirPort Extreme (BCM94321MC) is not supported anymore, Apple removed support for this Wi-Fi card with High Sierra.
You have to upgrade it to the model used on mid-2010/mid-2012 (BCM94322MC, around $10 on eBay for a real one removed from an used Mac) or a newer one from newer Macs (BCM94360 and others).
Use the search, there are several threads about the Wi-Fi upgrade topic. The Upgrade stickie thread has links.
Btw, BCM94322MC support was removed from Catalina.
Early-2009 AirPort Extreme (BCM94321MC) is not supported anymore, Apple removed support for this Wi-Fi card with High Sierra.
You have to upgrade it to the model used on mid-2010/mid-2012 (BCM94322MC, around $10 on eBay for a real one removed from an used Mac) or a newer one from newer Macs (BCM94360 and others).
Use the search, there are several threads about the Wi-Fi upgrade topic. The Upgrade stickie thread has links.
Btw, BCM94322MC support was removed from Catalina.
If it was working, maybe your Mac Pro got the rare Atheros AirPort Extreme that Apple used briefly with some MP4,1 as a second source and had support removed with Mojave or you had a hacked install of High Sierra with the Sierra BCM drivers instead.
If it was working, maybe your Mac Pro got the rare Atheros AirPort Extreme that Apple used briefly with some MP4,1 as a second source and had support removed with Mojave or you had a hacked install of High Sierra with the Sierra BCM drivers instead.
This guide explains how to use the excellent OpenCore boot loader to install, run, and update the latest version of macOS on the MacPro5,1, resulting in a clean, unaltered operating system just like on a supported Mac.