"new" MP 5.1, and Mojave fresh install on NON EFI GPU

nicko3.0i

macrumors newbie
Original poster
Feb 3, 2019
5
2
Verona, Italy
Hi all!
My last Mac was a MacMini G4 back in 2009, but I got for like 50 bucks a "non working" 5.1 MacPro and it's 1920x1200 monitor. Brought it home, cleaned it up in the garage using a compressor, tons of dust went out..
It has several scratches and dents, but it's no big deal. It turned out that one of the two gpus is dead.. took it off, and it normally boots high sierra! YAY!!!!

I was mentally ready to discover it to be the least equipped machine money could buy, but... 2x 6core Xeon, 16GB ram!
I know it's a 10 years old machine, but having had it basically for free, I MUST give it a go!

I have a 4GB radeon rx480 lying around, so... let's try!

Situation:
nVidia GT120 has EFI, but no METAL support
rx480 METAL SUPPORT, but no EFI :p

Tried the http://dosdude1.com/mojave/ patcher but after applying the patches... kernel panics, no succesful boots, errors. :-(

IDEA: let's use the patched installer to install on a blank drive using the GT120
When the system reboots, it freezes at circa 80% of boot process.
Turn off, remove GT120, put RX480 in.
Power up.
IT WORKS! as some of the system loads, you get the screens to create a user and so on

The only downside is having to swap the cards, but it's definitely better than installing high sierra every time, swapping the cards, and then upgrade to mojave!

If only EFI cards weren't priced insanely high (at least here in Italy), the problem wouldn't have even existed, but I cannot give 300bucks for a 10 yrs old gpu just because it's "mac edition" :)

Well, that's it! Just wanted to share experience, it's my first post!
bye!

Nicolo' "Nicko"
 

HyperX13

macrumors 6502
Sep 3, 2009
346
6
I am running non efi video card (rx 580 - non EFI). Here is what I did. I was on high sierra, I put in the rx 580. It booted fine. I then tried to upgrade to Mojave. I was prompted to do a firmware update and it updated me to 138.0.0.0. It then started to install my Mojave. Totally in the dark. I didnt see a progress bar. I waited 1 hour and 15 minutes and boom. Mojave came up. Here are my specs


[doublepost=1551191785][/doublepost]
I am running non efi video card (rx 580) . Here is what I did. I was on high sierra, I put in the rx 580. It booted fine. I then tried to upgrade to Mojave. I was prompted to do a firmware update and it updated me to 138.0.0.0. It then started to install my Mojave. Totally in the dark. I didnt see a progress bar. I waited 1 hour and 15 minutes and boom. Mojave came up. Here are my specs

I also upgraded the firmware one more time when 10.14.3 came out to 140.0.0.0 by doing the Mojave install again but then stopping it after the firmware install did the first reboot.
 

tsialex

macrumors 603
Jun 13, 2016
5,746
6,545
Brazil
Hi all!
My last Mac was a MacMini G4 back in 2009, but I got for like 50 bucks a "non working" 5.1 MacPro and it's 1920x1200 monitor. Brought it home, cleaned it up in the garage using a compressor, tons of dust went out..
It has several scratches and dents, but it's no big deal. It turned out that one of the two gpus is dead.. took it off, and it normally boots high sierra! YAY!!!!

I was mentally ready to discover it to be the least equipped machine money could buy, but... 2x 6core Xeon, 16GB ram!
I know it's a 10 years old machine, but having had it basically for free, I MUST give it a go!

I have a 4GB radeon rx480 lying around, so... let's try!

Situation:
nVidia GT120 has EFI, but no METAL support
rx480 METAL SUPPORT, but no EFI :p

Tried the http://dosdude1.com/mojave/ patcher but after applying the patches... kernel panics, no succesful boots, errors. :-(

IDEA: let's use the patched installer to install on a blank drive using the GT120
When the system reboots, it freezes at circa 80% of boot process.
Turn off, remove GT120, put RX480 in.
Power up.
IT WORKS! as some of the system loads, you get the screens to create a user and so on

The only downside is having to swap the cards, but it's definitely better than installing high sierra every time, swapping the cards, and then upgrade to mojave!

If only EFI cards weren't priced insanely high (at least here in Italy), the problem wouldn't have even existed, but I cannot give 300bucks for a 10 yrs old gpu just because it's "mac edition" :)

Well, that's it! Just wanted to share experience, it's my first post!
bye!

Nicolo' "Nicko"
I don't understand, you have all the hardware to do it the correct way and do it wrong?!? You shouldn't use hacked installs with supported Macs.

Read the first post of the thread MP5,1: What you have to do to upgrade to Mojave and do it right when you have time.
 
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HyperX13

macrumors 6502
Sep 3, 2009
346
6
The video card isn't "mac edition", how am I supposed to run the installer without seeing anything?
You agree to everything in the High Sierra OS and then you just let it go for an hour or so.. It will install it while the screens are blank. Key is patience. My dual Xeon with 128 gigs or ram took 1 hour and 15 mins.
 

tsialex

macrumors 603
Jun 13, 2016
5,746
6,545
Brazil
The video card isn't "mac edition", how am I supposed to run the installer without seeing anything?
You don’t need Mac EFI GPUs if macOS already have the drivers for it, RX 480 is one that have drivers and have full macOS installer support.

Read the first post of the thread that sent you, after all the needed firmware upgrades, you can even do a clean install with createinstallmedia USB-key.
 
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nicko3.0i

macrumors newbie
Original poster
Feb 3, 2019
5
2
Verona, Italy
You agree to everything in the High Sierra OS and then you just let it go for an hour or so.. It will install it while the screens are blank. Key is patience. My dual Xeon with 128 gigs or ram took 1 hour and 15 mins.
The core part of my post is "fresh install", I didn't want to make an OS upgrade :)
Now I'm gonna check what's @tsialex is telling me..... if it works I'm getting drunk tonight, you are all invited :)
 

tsialex

macrumors 603
Jun 13, 2016
5,746
6,545
Brazil
The core part of my post is "fresh install", I didn't want to make an OS upgrade :)
Now I'm gonna check what's @tsialex is telling me..... if it works I'm getting drunk tonight, you are all invited :)
Yes, it works after all the needed firmware upgrades being done. You will need High Sierra, btw.
 

HyperX13

macrumors 6502
Sep 3, 2009
346
6
The core part of my post is "fresh install", I didn't want to make an OS upgrade :)
Now I'm gonna check what's @tsialex is telling me..... if it works I'm getting drunk tonight, you are all invited :)

So I did a fresh install just to test something else, and yes it was also a dark screen. What I did is create a USB boot install and then I held C on keyboard and it showed up the install screen after about 4 minutes.