Resolved Boot menus for graphics output protocol.(AMD only)see page 13

[Ludacrisvp]

Circling back to the 3,1 ...

As some of you know I'm now running a Sapphire Pulse RX 580 4Gb in the 3,1 and since it was reported as possible to get a boot screen leveraging a special version of rEFInd, I finally was able to test it out.

Results for the single test attempt are interesting I think.

rEFInd did show up on the monitor, and it allowed me to pick an OS to boot from but the middle time between this and the desktop was missing. Perhaps this is because I boot verbose by default but it seems like it also means that single user mode becomes inaccessible. Perhaps not a big deal but it is what i'm seeing.

This is the screen as seen during the time from hitting boot during my standard verbose boot.
There is some light visual corruption but eventually the desktop loaded as expected.

 

[DearthnVader]

Circling back to the 3,1 ...

As some of you know I'm now running a Sapphire Pulse RX 580 4Gb in the 3,1 and since it was reported as possible to get a boot screen leveraging a special version of rEFInd, I finally was able to test it out.

Results for the single test attempt are interesting I think.

rEFInd did show up on the monitor, and it allowed me to pick an OS to boot from but the middle time between this and the desktop was missing. Perhaps this is because I boot verbose by default but it seems like it also means that single user mode becomes inaccessible. Perhaps not a big deal but it is what i'm seeing.

View attachment 844357
View attachment 844358

This is the screen as seen during the time from hitting boot during my standard verbose boot.
There is some light visual corruption but eventually the desktop loaded as expected.
View attachment 844359

boot.efi expects gST>ConOutHandle.

That should get you early boot stage screens, it worked for me, I was able to get the verbose output and single user mode.

 

[Ludacrisvp]

boot.efi expects gST>ConOutHandle.

That should get you early boot stage screens, it worked for me, I was able to get the verbose output and single user mode.

Pardon my ignorance but how do I pass that to the boot efi?

 

[DearthnVader]

Pardon my ignorance but how do I pass that to the boot efi?

I think I added this driver to rEFInd.....

https://github.com/NTT123/Hackintos...r/CLOVER/drivers64UEFI/OsxAptioFix2Drv-64.efi

 

[Nick [D]vB]

Hey, if you still have a EFI build environment handy I found a couple of shell tools that look useful, might help pin-down why this never worked on MP5,1

https://github.com/andreiw/UefiToolsPkg/tree/master/Applications/GopTool

https://github.com/andreiw/UefiToolsPkg/tree/master/Applications/SetCon

btw - I worked out what was wrong in those tests we did at the end of last year, and I think I promised you some shell logs from the 2011 iMac I added GOP boot-screens to, better late than never…

 

[startergo]

Hey, if you still have a EFI build environment handy I found a couple of shell tools that look useful, might help pin-down why this never worked on MP5,1

https://github.com/andreiw/UefiToolsPkg/tree/master/Applications/GopTool

https://github.com/andreiw/UefiToolsPkg/tree/master/Applications/SetCon

btw - I worked out what was wrong in those tests we did at the end of last year, and I think I promised you some shell logs from the 2011 iMac I added GOP boot-screens to, better late than never…

Here is a docker image:
https://github.com/tianocore/tianocore.github.io/wiki/Container-for-OSFC-Workshops
WSL 2 is Microsoft's next version of the Windows Subsystem for Linux and includes a genuine open-source Linux kernel based on version 4.19 from Kernel.org. As it uses a real Linux kernel, Linux apps will now have full access to their normal system calls.
Install WSL 2 on Windows 10

 

[Nick [D]vB]

Thanks, that looks very useful, will add to my list of reasons to install W10 !
To be clear I didn’t get standard PC GOPs working on the 2011 iMac either,
just Apple’s “mutant” GOPs pulled from later iMac / Macbook bootroms.

I did some more firmware tests with a desktop RX480 recently,
and found at least 5 reasons why the test we did before failed:

- I stupidly missed the sub-system ID check in the IM18,3 Polaris GOP EFI
- You can’t load multiple EFIs from AMDs PCI rev2 vbios (but you can with Nvidia!)
- CoreEG2 requires an external EDID parser (AGP has that built-in?)
- The MP6,1 CoreEG2 was too old to properly load the IM18,3 GOP EFI
- IM18,3 CoreEG2 was too new for MP5,1 (as you found out the hard way, sorry!)

But… it turns out the CoreEG2 from the iMac 17,1 is “just right”
99% sure it would work on MP3/4/5,1 (it doesn’t brick a 2007 iMac !)
It loads & links the 18,3 Polaris EFI ok but sadly the un-patched iMac
frame-buffers are hopelessly mismatched to any desktop cards vbios.

That’s the killer, which sadly I don’t have the time, or IDA pro skills, to fix.
It’s a shame Fl0r!an didn't work this out a few years ago,
Netkas & MVC seem to have it covered now anyway.

The M380 EFI might be slightly easier to patch for the R9 290X and
I’m not sure how the Vega iMacs “skeleton” vbios handles display outputs
but if it’s EFI builds them dynamically somehow that might be an option…

 

[Ludacrisvp]

I think I added this driver to rEFInd.....

https://github.com/NTT123/Hackintos...r/CLOVER/drivers64UEFI/OsxAptioFix2Drv-64.efi

Thanks, this did the trick.
Verbose boot and Single User mode both work correctly with this added to refind.

While refind is more fragile than having a flashed GPU, this is very viable solution for the 3,1 users.

 

[Nick [D]vB]

Cool, I'll have to try that driver on the iMacs. I found this AMD PC GOP that's supposed to have been patched to load as "valid" even with an edited vbios. I've not tested it yet but it might be useful. I think you still have to patch the AMD driver under Windows though?

 

[startergo]

I think you still have to patch the AMD driver under Windows though?

Because the driver will be unsigned for Windows? This only affects EFI Windows I believe and there is a solution for that. The best would be to sign the driver of course.

 

[Nick [D]vB]

Yes, we can always use the CRU patcher, boot in test signing mode etc

I think some older driver versions don't bother checking the vbios hashes either.

 

[JoSch]

I can confirm, that NextLoader show the menu on an RX480 in a 3,1, but the special refind doesn't.
Now, if NextLoader would find my USB drives, I could go all in with it.

 

[JoSch]

Ok, I tried refind again. Now, it works. Now, I only have get the AMD SSE patch for Mojave to work.

 

[Prophet96ix]

@JoSch did you get the AMD SSE patch working? I'm struggling with it for days now

 

[JoSch]

No. I then switched to a GTX680.

 

[Prophet96ix]

Okay Thats so bad

 

[rmpitzer]

Now currently my ATI Radeon HD 4870 and the nVidia GTX 1050Ti sit together in the cMP

I'm curious to know how you powered both gpus? I have an nVidia GTX 1060 in my machine, and I'd like to put the original ATI Radeon HD 4870 back in plugged into a separate monitor so I can get a boot screen, but wasn't sure where to power it from.

Any help would be appreciated!

-Rich

 

[zcream]

That was an exciting thread. No bootscreen using GTX 1080 ti on Mac Pro 5,1 Sierra 10.12.6 using rEFInd thus far.
I was going to install it from another thread, but I will hold off for now as this is my production Mac. I have another out for repairs that I will try it on later.
[automerge]1574357721[/automerge]

 

[nc_lee]

Hey, everyone. I'm having trouble getting my Mac Pro 3,1 with Sapphire RX580 8GB to work with rEFInd. I'm hoping someone has an idea for me.

I'm successfully booting into Mojave on an NVMe disk using Clover, but it doesn't give me a boot menu, and it's Clover, so it's doing all sorts of weird stuff like masquerading my Mac Pro as an iMac.

I'm trying to use rEFInd, using the version linked previously in this thread (it downloads as refind(1).zip ), and I added OsxAptioFix2Drv-64.efi. It's installed to the EFI partition on an external USB 2.0 drive. That is the same drive that I use for Clover, so I know it is able to boot my system.

After blessing the refind EFI booter, I shut down the system, then I took out my AMD Radeon 2600. My RX 580 is installed in the bottom slot, connected to a display via HDMI, and it's the only video card in there. The display never comes on, and the monitor says it's not getting a signal. My caps lock light doesn't engage. My refind.log goes through scanning all of my volumes, then it stops after giving the message GraphicsOutput !ok. I think that means the graphics output is NOT OK.

So it looks like there is some error condition with the graphics output. It's a stock, unmodified RX580 card - the one you see on amazon if you search for "sapphire rx580".


Below is the refind.log from a couple attempts.

0:100  0:100  MemLog inited, TSC freq: 2793004498
0:100  0:000  Now is 24.11.2019,  23:55:41 (GMT)
2:705  2:605  Starting rEFInd on Apple EFI
4:987  2:281  ScanVolumes()
5:130  0:143  ScanVolumes add  whole disk volume to list
5:279  0:149  ScanVolumes add EFI to list
5:421  0:141  ScanVolumes add Mulder to list
5:563  0:141  ScanVolumes add Recovery HD to list
5:806  0:242  ScanVolumes add  whole disk volume to list
6:021  0:215  ScanVolumes add EFI to list
6:158  0:137  ScanVolumes add EFI System Partition to list
6:636  0:477  ScanVolumes add Patched Mojave to list
6:779  0:143  ScanVolumes add unknown volume to list
6:932  0:153  ScanVolumes add  whole disk volume to list
7:084  0:152  ScanVolumes add EFI to list
7:233  0:148  ScanVolumes add unknown volume to list
7:391  0:158  ScanVolumes add Boot OS X to list
7:542  0:150  ScanVolumes add  whole disk volume to list
7:687  0:144  ScanVolumes add EFI to list
7:828  0:140  ScanVolumes add Queequeg to list
7:969  0:140  ScanVolumes add Recovery HD to list
8:490  0:521  ScanVolumes add Scully to list
8:639  0:148  ScanVolumes add  whole disk volume to list
8:791  0:152  ScanVolumes add EFI to list
8:933  0:141  ScanVolumes add HFS+ volume to list
9:095  0:162  ScanVolumes add Boot OS X to list
9:247  0:151  ScanVolumes add  whole disk volume to list
9:451  0:204  ScanVolumes add EFI to list
9:593  0:141  ScanVolumes add Skinner to list
9:734  0:140  ScanVolumes add Boot OS X to list
9:878  0:144  ScanVolumes add  whole disk volume to list
10:454  0:576  ScanVolumes add EFI to list
10:599  0:144  ScanVolumes add Skinner to list
10:740  0:140  ScanVolumes add Boot OS X to list
10:879  0:139  ScanVolumes add unknown volume to list
11:034  0:154  ScanVolumes add  FAT volume to list
11:176  0:142  ScanVolumes add  whole disk volume to list
11:325  0:148  ScanVolumes add EFI to list
11:465  0:140  ScanVolumes add unknown volume to list
11:606  0:140  ScanVolumes add Preboot to list
11:746  0:140  ScanVolumes add Byers 10.14.5 to list
12:136  0:389  ScanVolumes add Langley 10.13.6 to list
12:285  0:149  ScanVolumes add Recovery to list
12:425  0:139  ScanVolumes add VM to list
13:813  1:388  ConsoleControl ok
13:950  0:137  UgaDraw ok
14:090  0:140  GraphicsOutput !ok
0:100  0:100  MemLog inited, TSC freq: 2792996551
0:100  0:000  Now is 25.11.2019,  0:2:3 (GMT)
2:365  2:265  Starting rEFInd on Apple EFI
4:379  2:013  ScanVolumes()
4:523  0:143  ScanVolumes add  whole disk volume to list
4:665  0:141  ScanVolumes add EFI to list
5:203  0:538  ScanVolumes add Mulder to list
5:348  0:144  ScanVolumes add Recovery HD to list
5:591  0:242  ScanVolumes add  whole disk volume to list
5:806  0:215  ScanVolumes add EFI to list
5:943  0:137  ScanVolumes add EFI System Partition to list
6:168  0:224  ScanVolumes add Patched Mojave to list
6:312  0:143  ScanVolumes add unknown volume to list
6:456  0:144  ScanVolumes add  whole disk volume to list
6:597  0:140  ScanVolumes add EFI to list
6:740  0:142  ScanVolumes add unknown volume to list
7:159  0:419  ScanVolumes add Boot OS X to list
7:311  0:151  ScanVolumes add  whole disk volume to list
7:452  0:140  ScanVolumes add EFI to list
7:593  0:140  ScanVolumes add Queequeg to list
7:734  0:140  ScanVolumes add Recovery HD to list
7:931  0:197  ScanVolumes add Scully to list
8:083  0:151  ScanVolumes add  whole disk volume to list
8:224  0:140  ScanVolumes add EFI to list
8:365  0:140  ScanVolumes add HFS+ volume to list
8:506  0:140  ScanVolumes add Boot OS X to list
8:904  0:398  ScanVolumes add  whole disk volume to list
9:054  0:150  ScanVolumes add EFI to list
9:195  0:140  ScanVolumes add Skinner to list
9:336  0:141  ScanVolumes add Boot OS X to list
9:480  0:144  ScanVolumes add  whole disk volume to list
9:621  0:140  ScanVolumes add EFI to list
9:762  0:140  ScanVolumes add Skinner to list
9:903  0:140  ScanVolumes add Boot OS X to list
10:049  0:146  ScanVolumes add unknown volume to list
10:202  0:152  ScanVolumes add  FAT volume to list
10:343  0:141  ScanVolumes add  whole disk volume to list
10:735  0:391  ScanVolumes add EFI to list
10:878  0:143  ScanVolumes add unknown volume to list
11:019  0:140  ScanVolumes add Preboot to list
11:181  0:162  ScanVolumes add Byers 10.14.5 to list
11:321  0:139  ScanVolumes add Langley 10.13.6 to list
11:461  0:139  ScanVolumes add Recovery to list
11:601  0:140  ScanVolumes add VM to list
12:768  1:167  ConsoleControl ok
12:906  0:137  UgaDraw ok
13:053  0:147  GraphicsOutput !ok

Here is the contents of my EFI partition:

/Volumes/EFI
└── EFI
    ├── BOOT
    │   ├── BOOTX64.efi
    │   └── startup.nsh
    ├── CLOVER
    │   ├── CLOVERX64.efi
    │   ├── OEM
    │   │   └── SystemProductName
    │   │       ├── ACPI
    │   │       │   ├── origin
    │   │       │   └── patched
    │   │       ├── ROM
    │   │       ├── UEFI
    │   │       │   ├── ACPI
    │   │       │   │   ├── origin
    │   │       │   │   └── patched
    │   │       │   ├── config-sample.plist
    │   │       │   └── kexts
    │   │       │       └── Other
    │   │       ├── config-sample.plist
    │   │       └── kexts
    │   │           └── Other
    │   ├── config.plist
    │   ├── doc
    │   │   ├── HowToFixDsdt.txt
    │   │   ├── HowToInstallOSX.txt
    │   │   ├── UEFI\ boot\ with\ Clover.rtf
    │   │   ├── bcfg.txt
    │   │   └── boot1f32-install.sh
    │   ├── drivers64UEFI
    │   │   ├── apfs.efi
    │   │   └── nfme.efi
    │   ├── misc
    │   │   └── debug.log
    │   ├── themes
    │   │   ├── embedded
    │   │   │   ├── screenshot.png
    │   │   │   └── theme.plist
    │   │   ├── logo_main.png
    │   │   ├── pointer-metal.png
    │   │   ├── random
    │   │   │   └── theme.plist
    │   │   └── tonymacx86
    │   │       ├── background.png
    │   │       ├── icons
    │   │       │   ├── OtherMac.icns
    │   │       │   ├── apple.png
    │   │       │   ├── arrow.png
    │   │       │   ├── boot_linux.icns
    │   │       │   ├── boot_win.icns
    │   │       │   ├── cd_mac_leo.icns
    │   │       │   ├── cd_mac_snow.icns
    │   │       │   ├── cd_mac_tiger.icns
    │   │       │   ├── cd_win.icns
    │   │       │   ├── frame.png
    │   │       │   ├── func_about.png
    │   │       │   ├── func_clover.png
    │   │       │   ├── func_help.png
    │   │       │   ├── func_options.png
    │   │       │   ├── func_reset.png
    │   │       │   ├── func_shutdown.png
    │   │       │   ├── os_cap.icns
    │   │       │   ├── os_clover.icns
    │   │       │   ├── os_cougar.icns
    │   │       │   ├── os_ecomstation.icns
    │   │       │   ├── os_fedora.icns
    │   │       │   ├── os_freebsd.icns
    │   │       │   ├── os_freedos.icns
    │   │       │   ├── os_hsierra.icns
    │   │       │   ├── os_legacy.icns
    │   │       │   ├── os_leo.icns
    │   │       │   ├── os_linux.icns
    │   │       │   ├── os_lion.icns
    │   │       │   ├── os_mac.icns
    │   │       │   ├── os_mav.icns
    │   │       │   ├── os_mint.icns
    │   │       │   ├── os_moja.icns
    │   │       │   ├── os_netbsd.icns
    │   │       │   ├── os_openbsd.icns
    │   │       │   ├── os_recovery.icns
    │   │       │   ├── os_sierra.icns
    │   │       │   ├── os_snow.icns
    │   │       │   ├── os_suse.icns
    │   │       │   ├── os_tiger.icns
    │   │       │   ├── os_ubuntu.icns
    │   │       │   ├── os_unknown.icns
    │   │       │   ├── os_vista.icns
    │   │       │   ├── os_win.icns
    │   │       │   ├── os_win7.icns
    │   │       │   ├── os_win8.icns
    │   │       │   ├── os_winvista.icns
    │   │       │   ├── os_winxp.icns
    │   │       │   ├── os_yos.icns
    │   │       │   ├── osx.icns
    │   │       │   ├── pointer-black.png
    │   │       │   ├── pointer.png
    │   │       │   ├── tool_shell.icns
    │   │       │   ├── tool_shell.png
    │   │       │   ├── vol_clover.icns
    │   │       │   ├── vol_external.icns
    │   │       │   ├── vol_firewire.icns
    │   │       │   ├── vol_internal.icns
    │   │       │   ├── vol_internal_apfs.icns
    │   │       │   ├── vol_internal_ext3.icns
    │   │       │   ├── vol_internal_hfs.icns
    │   │       │   ├── vol_internal_ntfs.icns
    │   │       │   ├── vol_internal_ntfs_31.icns
    │   │       │   ├── vol_internal_ntfs_XP7.icns
    │   │       │   ├── vol_netboot.icns
    │   │       │   ├── vol_optical.icns
    │   │       │   └── vol_recovery.icns
    │   │       ├── logo.png
    │   │       ├── scrollbar
    │   │       │   ├── bar_end.png
    │   │       │   ├── bar_fill.png
    │   │       │   ├── bar_start.png
    │   │       │   ├── down_button.png
    │   │       │   ├── scroll_end.png
    │   │       │   ├── scroll_fill.png
    │   │       │   ├── scroll_start.png
    │   │       │   └── up_button.png
    │   │       ├── selection_big.png
    │   │       ├── selection_small.png
    │   │       └── theme.plist
    │   └── tools
    │       ├── Shell32.efi
    │       ├── Shell64.efi
    │       ├── Shell64U.efi
    │       └── bdmesg.efi
    ├── refind
    │   ├── REFIND.efi
    │   ├── REFIND2.efi
    │   ├── drivers_aa64
    │   │   ├── LICENSE.txt
    │   │   ├── LICENSE_GPL.txt
    │   │   ├── btrfs_aa64.efi
    │   │   ├── ext2_aa64.efi
    │   │   ├── ext4_aa64.efi
    │   │   ├── hfs_aa64.efi
    │   │   ├── iso9660_aa64.efi
    │   │   ├── ntfs_aa64.efi
    │   │   └── reiserfs_aa64.efi
    │   ├── drivers_ia32
    │   │   ├── LICENSE.txt
    │   │   ├── LICENSE_GPL.txt
    │   │   ├── btrfs_ia32.efi
    │   │   ├── ext2_ia32.efi
    │   │   ├── ext4_ia32.efi
    │   │   ├── hfs_ia32.efi
    │   │   ├── iso9660_ia32.efi
    │   │   ├── ntfs_ia32.efi
    │   │   └── reiserfs_ia32.efi
    │   ├── drivers_x64
    │   │   ├── LICENSE.txt
    │   │   ├── LICENSE_GPL.txt
    │   │   ├── OsxAptioFix2Drv-64.efi
    │   │   ├── apfs.efi
    │   │   ├── btrfs_x64.efi
    │   │   ├── ext2_x64.efi
    │   │   ├── ext4_x64.efi
    │   │   ├── hfs_x64.efi
    │   │   ├── iso9660_x64.efi
    │   │   ├── nfme.efi
    │   │   ├── ntfs_x64.efi
    │   │   └── reiserfs_x64.efi
    │   ├── icons
    │   │   ├── README
    │   │   ├── arrow_left.png
    │   │   ├── arrow_right.png
    │   │   ├── boot_linux.png
    │   │   ├── boot_win.png
    │   │   ├── func_about.png
    │   │   ├── func_csr_rotate.png
    │   │   ├── func_exit.png
    │   │   ├── func_firmware.png
    │   │   ├── func_hidden.png
    │   │   ├── func_reset.png
    │   │   ├── func_shutdown.png
    │   │   ├── licenses
    │   │   │   ├── cc-3.0.txt
    │   │   │   ├── cc-by-sa-4.0.txt
    │   │   │   ├── gpl-2.0.txt
    │   │   │   └── lgpl-3.0.txt
    │   │   ├── mouse.png
    │   │   ├── os_arch.png
    │   │   ├── os_centos.png
    │   │   ├── os_chakra.png
    │   │   ├── os_chrome.png
    │   │   ├── os_clover.png
    │   │   ├── os_crunchbang.png
    │   │   ├── os_debian.png
    │   │   ├── os_devuan.png
    │   │   ├── os_elementary.png
    │   │   ├── os_fedora.png
    │   │   ├── os_freebsd.png
    │   │   ├── os_frugalware.png
    │   │   ├── os_gentoo.png
    │   │   ├── os_gummiboot.png
    │   │   ├── os_haiku.png
    │   │   ├── os_hwtest.png
    │   │   ├── os_kubuntu.png
    │   │   ├── os_legacy.png
    │   │   ├── os_linux.png
    │   │   ├── os_linuxmint.png
    │   │   ├── os_lubuntu.png
    │   │   ├── os_mac.png
    │   │   ├── os_mageia.png
    │   │   ├── os_mandriva.png
    │   │   ├── os_netbsd.png
    │   │   ├── os_network.png
    │   │   ├── os_opensuse.png
    │   │   ├── os_redhat.png
    │   │   ├── os_refind.png
    │   │   ├── os_refit.png
    │   │   ├── os_slackware.png
    │   │   ├── os_suse.png
    │   │   ├── os_trusty.png
    │   │   ├── os_ubuntu.png
    │   │   ├── os_unknown.png
    │   │   ├── os_win.png
    │   │   ├── os_win8.png
    │   │   ├── os_xenial.png
    │   │   ├── os_xubuntu.png
    │   │   ├── os_zesty.png
    │   │   ├── tool_apple_rescue.png
    │   │   ├── tool_fwupdate.png
    │   │   ├── tool_memtest.png
    │   │   ├── tool_mok_tool.png
    │   │   ├── tool_netboot.png
    │   │   ├── tool_part.png
    │   │   ├── tool_rescue.png
    │   │   ├── tool_shell.png
    │   │   ├── tool_windows_rescue.png
    │   │   ├── transparent.png
    │   │   ├── vol_external.png
    │   │   ├── vol_internal.png
    │   │   ├── vol_net.png
    │   │   └── vol_optical.png
    │   ├── refind.conf-sample
    │   ├── refind_GOPx64.efi
    │   ├── refind_aa64.efi
    │   ├── refind_ia32.efi
    │   ├── refind_x64.efi
    │   ├── tools_aa64
    │   ├── tools_ia32
    │   │   └── gptsync_ia32.efi
    │   └── tools_x64
    │       └── gptsync_x64.efi
    └── refind.log

36 directories, 213 files

 

[Ludacrisvp]

Which refind efi file did you bless?

 

[nc_lee]

I blessed /Volumes/EFI/refind/REFIND.EFI

 

[Ludacrisvp]

I blessed /Volumes/EFI/refind/REFIND.EFI

Here are the commands I use:

First make a mount point:
Mac-Pro:~ ludacrisvp$ sudo mkdir /Volumes/EFI

Now mount the partition:
Mac-Pro:~ ludacrisvp$ sudo mount -t msdos /dev/disk1s1 /Volumes/EFI

Now to bless the actual boot file:
Mac-Pro:~ ludacrisvp$ sudo bless --mount /Volumes/EFI --setBoot --file /Volumes/EFI/EFI/refind/REFIND.efi --shortform

Unless yours somehow mounted differently than this I don't think your bless command is really working as you think ... you'll note that i have 2x EFI folders in my command whereas yours only mentions one. So you *might* be blessing the drive instead and not the file needed so you end up with a random variant of refind loading as you can see there are several of them.

If it helps, this is what a refind.log file appears like when it does work properly with the 3,1:

Spoiler

0:100  0:100  MemLog inited, TSC freq: 3191999946
0:100  0:000  Now is 20.11.2019,  6:34:10 (GMT)
0:132  0:032  Starting rEFInd on Apple EFI
10:191  10:059  ScanVolumes()
10:229  0:037  ScanVolumes add  whole disk volume to list
10:263  0:034  ScanVolumes add EFI to list
<<TRIMMED A TON OF SCANNED VOLUMES>>
11:248  0:038  ScanVolumes add Cat to list
11:460  0:211  ConsoleControl ok
11:493  0:032  UgaDraw ok
11:526  0:032  GraphicsOutput ok
11:559  0:032  Available graphics modes for refit.conf screen_resolution:
11:592  0:032  Curr. Mode = -1, Modes = 7, FB = 80000000, FB size=0x0
11:624  0:031  SetMaxResolution: found best mode 0: 1920x1080
11:726  0:102  About to switch to graphic mode 0
11:769  0:042  Video mode change to mode #0: Success
11:801  0:031   - set

Also if it helps here is the content of the refind.conf file I'm using, note that you don't _need_ one but it doesn't hurt to have one.

Spoiler

$ grep -v \# /Volumes/EFI/EFI/refind/refind.conf|uniq
timeout 20
small_icon_size 34
big_icon_size 96
use_graphics_for
showtools shell, gdisk, csr_rotate, memtest, mok_tool, apple_recovery, windows_recovery, about, hidden_tags, reboot, exit, firmware, fwupdate
csr_values 10,77
uefi_deep_legacy_scan
also_scan_dirs EFI,boot,ESP2:EFI/linux/kernels
spoof_osx_version 10.9

 

[nc_lee]

Very cool. I will closely follow this and try again once I return home from the holiday. If you're in the USA, Happy Thanksgiving!

 

[CrisNB]

Hi, everyone. Does anyone know if rEFInd brings gray Apple boot screen to Mac Pro 5.1, (MacOS High Sierra or Mojave)Mac Pro model (Mid 2010) model no. A1289 EMC No. 2314-2, upgraded with 2 x 3.46 GHz 6-Core Intel Xeon processors, 32 GB 1333 MHz DDR3 and a SAPPHIRE Radeon PULSE RX 580 8GB GDDR5 - (RADEON 11265-01-20G) graphics card?

 

[DearthnVader]

Hi, everyone. Does anyone know if rEFInd brings gray Apple boot screen to Mac Pro 5.1, (MacOS High Sierra or Mojave)Mac Pro model (Mid 2010) model no. A1289 EMC No. 2314-2, upgraded with 2 x 3.46 GHz 6-Core Intel Xeon processors, 32 GB 1333 MHz DDR3 and a SAPPHIRE Radeon PULSE RX 580 8GB GDDR5 - (RADEON 11265-01-20G) graphics card?

No, doesn't work with the 5,1.