MP 1,1-5,1 MacPro5,1: What you have to do to upgrade to Mojave (10.13/10.14 BootROM upgrades instructions thread)

[tsialex]

Using Mist and downloading the installer Mojave 10.14.4 (18E2034) can work?

Only if you already had 144.0.0.0.0 installed, if not, completely useless.

My Radeon RX 580 isn't flashed, can't see the boot...

This makes it more complicated, but not impossible.

You can always ask me for the BootROM reconstruction service and upgrade the Mac Pro firmware and have pre-boot configuration support (BootPicker/boot screens/etc) in one go.

Didn't understand another thing: the installation need to be from scratch or can upgrade my High Sierra only?

Thanks for the patience, much information in so many ways...

You can upgrade a HighSierra install if you already have MP51.0089.B00 installed, if not, you’ll need to clean install High Sierra with your AppleOEM GPU first.

 

[MurdockMan]

Only if you already had 144.0.0.0.0 installed, if not, completely useless.

Positive, have the 144.0.0.0.0

This makes it more complicated, but not impossible.

You can always ask me for the BootROM reconstruction service and upgrade the Mac Pro firmware and have pre-boot configuration support (BootPicker/boot screens/etc) in one go.



You can upgrade a HighSierra install if you already have MP51.0089.B00 installed, if not, you’ll need to clean install High Sierra with your AppleOEM GPU first.

Boot ROM reconstruction service... 🤔 Perhaps another way around?

My objective it to install Big Sur or Monterey and stop... need open core to do that?

Have High Sierra right now!

Thanks for your time

 

[tsialex]

My objective it to install Big Sur or Monterey and stop... need open core to do that?

Yes. Mojave is the last officially supported macOS release. Anything past Mojave is unsupported and requires OC/OCLP.

Big Sur is not stable with MacPro5,1, while Monterey runs very good.

Have High Sierra right now!

You can try upgrading High Sierra to Mojave or installing Mojave to another disk opening the installer booted from High Sierra.

 

[MurdockMan]

Used Mojave first install from Mist (10.14.4)... using a MacBook Air and the app in Sonoma (don't run in old systems), downloaded Mojave Install and moved to the Mac Pro.

In cMP 4.1 desktop from High Sierra, update worked ... after 40 minutes with black screen appeared the mouse cursor, after more 10 minutes the dialog to finish... the system was automatically updated High Sierra to Mojave and everything stays in his right place!

🙏

After searching more info about this procedure, found that the system update and don't do a clean install if the user doesn't choose anything for about 10 minutes.

From here, the next move is update system to Catalina or go for Monterey?
Open core from where? Big Sur? Or can try another stuff...

One more thing, the BootCamp says that don't support this computer and the System update on AppStore don't connect to the net???? No auto updates?

Thanks

 

[tsialex]

From here, the next move is update system to Catalina or go for Monterey?

Like I´ve wrote, Monterey.

Open core from where? Big Sur? Or can try another stuff...

OpenCore on the Mac Pro stickie thread for manual install or OCLP, see what is more appropriate for you.

One more thing, the BootCamp says that don't support this computer and the System update on AppStore don't connect to the net???? No auto updates?

Thanks

Wow, this is now way way off-topic for this thread.

Search for Brigadier, so you can download the drivers.

Now, please find a more appropriate thread for any further doubts.

 

[MurdockMan]

Only want to transmit my experience for the process... the process of updating the system should be more clear, by my opinion... why don't make a sticky with that?

Thank's for your time.

Best Regards

 

[tsialex]

Only want to transmit my experience for the process... the process of updating the system should be more clear, by my opinion... why don't make a sticky with that?

Thank's for your time.

Best Regards

You’re welcome to start one.