UEFI doesn't mean that there is a GOP
So re-flashing back to stock will restore GOP or do I need a special rom that states it’s GOP? Sorry for my ignorance.
UEFI doesn't mean that there is a GOP
Try re-flash factory ROM first.So re-flashing back to stock will restore GOP or do I need a special rom that states it’s GOP? Sorry for my ignorance.
Try to refresh your RX580 with the original rom file.@h9826790 please any advice why my RX 580 isn’t showing anymore the OpenCore GUI while R9 280x does?
Try to refresh your RX580 with the original rom file.
Your 280X shows the boot picker? Or just the boot screen?@h9826790 please any advice why my RX 580 isn’t showing anymore the OpenCore GUI while R9 280x does?
It shows the OpenCore boot picker when i select the original vbios from jumper 1 position, and Apple boot screen when i select the flashed EFI vbios from jumper 2 position.Your 280X shows the boot picker? Or just the boot screen?
Re-install OpenCoreIt shows the OpenCore boot picker when i select the original vbios from jumper 1 position, and Apple boot screen when i select the flashed EFI vbios from jumper 2 position.
With rx 580 OpenCore boot picker was able to be shown before yesterday, now started from yesterday it was not able to show the OpenCore boot picker.
Try re-flash factory ROM first.
Try to refresh your RX580 with the original rom file.
Re-install OpenCore
Most likely you changed something accidentally. But we can't tell which part. Perform a complete OpenCore re-installation should able to fix that.
Well recovery folder Big Sur is empty so no wonder why I can't boot from it. But I do not understand why though :/
View attachment 930694
anybody knows besides reinstalling the whole system how can I recreate the recovery? Thank you./
Pretty much ANY modification to the VBIOS will disable the GOP.Thank you guys it worked after flashing back the rx to Original rom. Should we say that, any under voltage or wattage or clocking will result with that situation of missing GOP?
As i play must likely everyday windows games in average, this is why i makes some tweaks to the rom for less power consumption. Or it was just corrupted for some unknown reason, because before getting it failed, i was doing tweaks under trixx, with no problem until yesterday after first attempt of Big Sur install!
Now on the OpenCore config, ProtectUefiServices should better be enabled or keeping it disabled? To avoid any overwriting!
ProtectUefiServices
isn't for cMP. I keep that disabled and no issue so far.your mistake in disable and it is necessary disabled
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Thank you guys it worked after flashing back the rx to Original rom. Should we say that, any under voltage or wattage or clocking will result with that situation of missing GOP?
As i play must likely everyday windows games in average, this is why i makes some tweaks to the rom for less power consumption. Or it was just corrupted for some unknown reason, because before getting it failed, i was doing tweaks under trixx, with no problem until yesterday after first attempt of Big Sur install!
Now on the OpenCore config, ProtectUefiServices should better be enabled or keeping it disabled? To avoid any overwriting!
diskutil list | grep Preboot
diskutil mount diskXsY
open /Volumes/Preboot/
open /System/Volumes/Preboot/
)diskutil mount Recovery
open /Volumes/Recovery/
open /System/Volumes/Preboot/
I upgrade to Catalina because I absolutely had to / no drivers for my 5700 XT in Mojave. The thinking was to keep things as simple and official as possible. However, Catalina was ridiculously easy - install on a sata (i guess an nvme would work, too if you have a proper enclosure) using a compatible mac, put it back into the unsupported mac pro, boot into recovery, and issue a single nocompatcheck nvram command. The only quirk is that you have to take it out again for updates, if you really need to. With Big Sur around the corner, there might be just one or two, so it’s a very minor annoyance.- Is Catalina recommended at this point vs Mojave? I recognise this is a subjective question, but are there any compelling reasons to use it in the context of OC? I don't feel strongly either way otherwise.
- Is it advisable to keep Mojave around as a fall-back, in case of OC issues?
A month wasted trying different things. Winclone says they can, but it does not work in our scenario at least, making a legacy install unbootable after conversion. No luck with a reverse conversion attempt either. Some have reported having luck with running Windows’ own mbr2gpt utility - it reported some allegedly minor errors yet the converted install wouldn’t boot either from opencore or using apple’s startup disk utility.- I've got Boot Camp installed in Legacy mode, so it doesn't hose my NVRAM. I understand that OC's boot picker can only see Windows in EFI mode (and has NVRAM protection that makes using EFI OK). Is it possible to just convert Windows to EFI without a reinstall? If so, what's the easiest way? Winclone 8 appears to be able to do this.
Nope actually we were referring from a USB Thunmbdrive to get authenticated disabled since I could not get into my BS recovery. From the USB then from the terminal:
cd /
./csrutil2 authenticated-root disable
You will see that even you can access BS recovery and there try to disable the new SIP you still have no access whatsoever to any permission.
But hey thanks for checking! I thought I was becoming blind or something... lol
Nice icons thought where did you get them from can I have the full set please? also these are 128x128 correct?
The actual 256x256 are to big for me.
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I am glad to see I worked out these Radeon can be pain in the B sometimes, speaking of it does anybody know which SPI chip comes with the Sapphire Black Nitro RX580 8GB?
Thank you.
@205Maxi to manual fix the BigSur Recovery, you should check this:
diskutil list | grep Preboot
mount the largest MB Preboot Volume (that is the BigSur one)
diskutil mount diskXsY
open /Volumes/Preboot/
(if you are in BigSur use insteadopen /System/Volumes/Preboot/
)
now copy only the folder name that is the BigSur UUID (random numbers and letters folder) that you will use for its Recovery
Now mount the BigSur Recovery:
diskutil mount Recovery
open /Volumes/Recovery/
if you are in BigSur use insteadopen /System/Volumes/Preboot/
in this path make a new folder with the previous copied folder name UUID
in this folder /Volumes/Recovery/UUID-numbers-letters/
you should copy the BigSur BaseSystem.dmg (740 MB) and its BaseSystem.chunklist
you can retrieve them from an USB BigSur Installer in this path:
/Volumes/USBInstallerBigSur/BaseSystem/
if you don't have a BigSur USB Installer, then make one from the "Install macOS Beta.app" (9,58 gb) with the apple createinstallmedia method:
sudo /Applications/Install\ macOS\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/YourUSBLabel/
BigSur Installer requires at least a 16 gb flash drive .
Thank you for the explanations. You are exemplar and scholar.
I upgrade to Catalina because I absolutely had to / no drivers for my 5700 XT in Mojave. The thinking was to keep things as simple and official as possible. However, Catalina was ridiculously easy - install on a sata (i guess an nvme would work, too if you have a proper enclosure) using a compatible mac, put it back into the unsupported mac pro, boot into recovery, and issue a single nocompatcheck nvram command. The only quirk is that you have to take it out again for updates, if you really need to. With Big Sur around the corner, there might be just one or two, so it’s a very minor annoyance.
No need, have a back up of the Catalina install and I have a USB stick with High Sierra packed away with my original ATI 5870 if things go really bad. (note that you don’t really need to do this as once installed, either mojave or catalina will work with ancient cards well enough to see what is going on. Also, recovery works with any OS/card).
A month wasted trying different things. Winclone says they can, but it does not work in our scenario at least, making a legacy install unbootable after conversion. No luck with a reverse conversion attempt either. Some have reported having luck with running Windows’ own mbr2gpt utility - it reported some allegedly minor errors yet the converted install wouldn’t boot either from opencore or using apple’s startup disk utility.
The only method that worked for me was to use rufus to install the Windows installer to a sata connected to another PC (bootcamp Windows on a modern mac in my case) as a Windows To Go, and then running the installer booting from Open Core (a must, of course) - it installs to the same ssd and has so far survived several days of reboots and installation of drivers, game and whatnot, with but one BSOD kernel failure scare, which Windows self-healed by booting in safe mode.
Try re-flash factory ROM first.
I wasn’t clear, sorry. Macos and Windows are on separate SSDs. I meant the rufus installer, once ran, installed Windows on the same ssd as the installer itself. Maybe it’s obvious, but with usb and dvd’s you have the installer on one medium, and the target physical disk for the actual Windows installation. In this case it sorta ‘installed onto itself.’ - which saved me an ssdHi Muscovite, thanks so much for taking the time to answer my questions. Are you running OpenCore then? It sounds like you used a different workaround to get Catalina installed. The tips on Bootcamp sound very useful too. So you have it on the same SATA SSD as macOS? Would it be any easier if installing to a different SSD? I usually have macOS on an NVMe and Windows on a SATA SSD.
All those tools break the GOP signature and cant load GOP in OC. If you can fix the CRC check you will be ok.Found an automated batch tool on win-raid that updates the Rom GOP for AMD and Nvidia cards, but none of Nvidia GPU's get to the OC GUI Boot Picker not sure what to look at next? Cards updated all are EVGA brand, GT 640 2GB, GT 740 4GB, GTX 770 both 2GB and 4GB. It's starting to look like Nvidia won't boot to a GUI Boot picker, unless it's related to EVGA? Has anyone been successful booting with Nvidia GPU's?
Try the test version ?Thank you for the explanations.
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All those tools break the GOP signature and cant load GOP in OC. If you can fix the CRC check you will be ok.