MP 1,1-5,1 RefindPlus|OpenCore by MyBootMgr

[Dayo]

That is the label of the thread. It is not MyBootMgr.

Indeed. Same as the OpenCore Thread is called OpenCore for Legacy MacPros but is a cMP 5,1 Thread as an example.
I.E., there is a guide in Post 1 that builds on things and goes beyond just the title.

If the actions listed are followed without clarification, will mess things up for the users who may think it applies to things as set out in Post 1. Hence the clarification.

PS: Edited my post above to say "Post 1" as opposed to "this thread"

 

[eicca]

@Dayo I’ve successfully installed the whole shabang but have hit a snag with my Windows system. REFIND is trying to boot to the System Reserved partition and not the main Windows OS partition. How can I tell it which partition is the right one?

EDIT never mind it boots just fine. Would still like to change that “System Reserved” text though if possible.

 

[Dayo]

Would still like to change that “System Reserved” text though if possible.

Don't have such text showing up on my installation (Legacy Windows) and don't know enough about Windows to guide you.

You may wish to post a query in the "Other OS" section: https://forums.macrumors.com/forums/forum.86
Tag me when you do so I can follow the discussion and maybe pick up some clues.

You could also try the rEFInd project forum although that has been very quiet for a while now and many queries are not answered: https://sourceforge.net/p/refind/discussion/general

 

[eicca]

One more small question: Since I'm not dependent on OpenCore to boot to macOS, I'd like to remove the OC_ALT. Can I simply delete this folder, or do I have to change configurations within REFInd to remove it from the boot picker?

 

[Dayo]

Using OpenCore to boot Mac OS is the whole point of this setup and while possible to cut bits and bobs out, this isn't something I've looked into.

If you don't need OpenCore, you might want to consider installing rEFInd alone (check the project site or the docs folder created by MyBootMgr) or follow the instructions in the guide on installing RefindPlus alone.

 

[eicca]

Well I AM using OpenCore to boot macOS Mojave with GPU acceleration, but I don't need the alternate instance for troubleshooting because if something goes wrong I'll just boot normally and start over. It's easy enough. Just thinking of cleaning up the boot picker screen a little bit.

 

[Dayo]

You can remove it if you want as said although I still think better to just leave it alone.
Leaving that as homework for you to figure out ... shouldn't be too difficult.

 

[eicca]

You can remove it if you want as said although I still think better to just leave it alone.
Leaving that as homework for you to figure out ... shouldn't be too difficult.

Cool, just as long as I don't cause anything to explode by removing things

Thanks for this tutorial, it was super easy and worked flawless first try. Final Cut is now loooooaaaads quicker in editing, and I expect it'll be loads quicker in rendering a final file too.

 

[149TM]

Hi Dayo, I have a problem with my Mac pro 3,1 and need to remove the software.

I can't find the USB stick.

Can I delete the folders or what to remove the software.

Thanks in Advance

 

[Dayo]

I need to remove the software.

As with basically every issue, refer to the guide in Post 1.

 

[149TM]

I did, when I try to use this tool its asking me for the USB zip disk, which I no longer have.

1. MyBootMgr will be removed on running the UninstallMgr Tool

When I select the HD it gives an error?

So how can I uninstall.

can I delete all the files from the user/shared folder?

Thank you

 

[Dayo]

You ran UninstallMgr and got an error?
If so, what error did you get exactly? Post screenshot of the error dialogue.

Also, you mentioned "the USB" in both messages ... What USB are you talking about?

 

[149TM]

Hi see attached.

Thank you

 

[Dayo]

So you implemented on a USB Stick and the USB Stick is lost?

If so, then the implementation is on that lost stick and not on your Mac.
You can also just delete the /Users/Shared/MyBootMgr folder and empty your trash to remove all traces completely.

 

[149TM]

Thank you.

 

[schafdog]

Success! Did take a couple of attempts. Not sure what I did wrong.
I have a boot menu for my 3,1 with a RX 560.


Some questions:
- Does running System Preferences... - Start up disk kill/change the selected EFI used? Tried running bless --getBoot but it isn't very happy with what it reads. I didn't change start up disk, but just curious..
- What is the selected OS that will be started after a boot menu timeout? Last OS started? It is possible to define which?

Next on the list is to get a Linux into the boot menu. Not sure if there are any examples/docs about that?

 

[eicca]

Here's a hypothetical question (and no, that's not code for "I just screwed something up.") What if I use this chainload method to install Catalina on my 5,1, and then something happens to the bootloader somehow? Say my bootloader drive died or my NVRAM got reset. Will the 5,1 simply refuse to boot to macOS 10.15 without OpenCore?

 

[Dayo]

- Does running System Preferences... - Start up disk kill/change the selected EFI used?

Running System Preferences -> Start Up Disk -> Select Preferred Disk is part of the guide ... so it obviously does not impact the selected EFI (if following the guide).

- What is the selected OS that will be started after a boot menu timeout? Last OS started? It is possible to define which?

For RefindPlus, it starts OpenCore. Read the docs provided to understand the config file settings if you want to change this.
For OpenCore, you decide this by running running System Preferences -> Start Up Disk -> Select Preferred Disk when booted in via OpenCore.

Next on the list is to get a Linux into the boot menu. Not sure if there are any examples/docs about that?

Installing Linux or any other OS is out of scope.
You might want to be prepared to cover from a boot coup when you do so.

Will the 5,1 simply refuse to boot to macOS 10.15 without OpenCore?

Yes, it will not boot as Catalina is not supported on a cMP5,1.

See Post 1 => APPENDIX => OTHER CONSIDERATIONS for tips.

 

[amstel78]

Hello @Dayo. Many thanks for your time and effort spent on this thread and Refind. I do have a question though as it seems I've run into a problem.

I'm trying to install this package on a Mac Pro 3,1 running Catalina patched via DosDude1's 1.4.4 installer. Everything is fine up until the soft bless reboot. Refind starts up and I'm seeing various options by my current Catalina install isn't shown. When attempting to start the first OpenCore instance, it brings me to a menu offering to reboot or enter recovery. Since this was only soft blessed, selecting the reboot option in OpenCore brings me back to Catalina.

Any suggestions as to what I need to do?

EDIT: I think I figured it out. Since Catalina creates two volumes, I had to point ConfigFactory to the data volume rather than the user accessible one in order for Catalina to appear as a bootable option in rEFInd. In other words, volume name should be Macintosh SSD - Data.

One other question: with regards to the following questions, how can I tell if my 3,1 FW was flashed to natively support APFS boot? I only recall running DosDude1's APFS patcher some years back for HS. Did that flash my 3,1's boot ROM?

EDIT #2: turns out my bootROM wasn't flashed for APFS but instead was using a loader script. I've since flashed my 3,1 using DosDude's APFS ROM Patcher to boot APFS natively. Rerunning ConfigFactory to reflect, and now boot screen shows Catalina using Macintosh SSD (not the data volume).

 

[Macschrauber]

Maybe I got something shuffled

Does RP offer a nvram protection when a user is setting a start volume thru Apple's Control Panel?

like OpenCore does?

example:

if I select another MacOS instance thru start volume control pane, blessing of RP is gone.

if I do same with nvram protection in openCore, openCore sets its default selection to this OS and blessing keeps to OC


Or do I mess a setting?

 

[startergo]

Maybe I got something shuffled

Does RP offer a nvram protection when a user is setting a start volume thru Apple's Control Panel?

like OpenCore does?

example:

if I select another MacOS instance thru start volume control pane, blessing of RP is gone.

if I do same with nvram protection in openCore, openCore sets its default selection to this OS and blessing keeps to OC


Or do I mess a setting?

There is no such protection in RP (yet).

 

[Dayo]

Updated MyBootMgr to v065

RefindPlus : v0.12.0.AN
OpenCore : v0.6.5

 

[startergo]

OpenCore offers protection from this issue as long as you ensure that you never ever deliberately boot, or, inadvertently get booted (See HERE or HERE), into Windows

@Dayo This might need to be updated to reflect the current state as well as adding the enhancements like the boot arguments.

 

[Macschrauber]

There is no such protection in RP (yet).

ok, that's why I got RP unblessed by the last security update 2020-007.

Got back to RP with a triple nvram reset and blessing it again.

Could be noted in Post 1 somewhere.

 

[Dayo]

ok, that's why I got RP unblessed by the last security update 2020-007.
Got back to RP with a triple nvram reset and blessing it again.
Could be noted in Post 1 somewhere.

If something else is blessed, either by changing the start disk in system preferences, or by an installer that needs to reboot into itself to complete the process, such as SecUpd 2020-007 Mojave, whatever was blessed before is "unblessed".

Nothing unusual in the behaviour and OC behaviour is unusual. Any item in Post 1 would be saying in effect that "RefindPlus behaves normally". I think expectation should be that it does unless told otherwise.

You also don't need big NVRAM reset. Actually none is needed as the SecUpd blessing is temporary btw ("soft" bless) and when the update is fully completed, the previous boot is restored.

Some stuff could be added to Post 1 about the best way to go forward on such but someone is likely to screw it up. Best to keep the limited scope of getting this up and running and for users to take responsibility for operating it afterwards.