W3b0 Posted April 29 Share Posted April 29 Hello, I upgraded from Sequoia to Tahoe via Software Update and I can't get the computer to finish booting. It was working perfectly with Sequoia. I already tried updating OpenCore to the latest version 1.0.7 with its respective kexts. I previously updated the USBMap.kext to be compatible with Tahoe. I also tried configuring the BIOS as if I were installing from a USB drive, disabling VT-d and everything else. It gets to the point where the verbose boot shows it loading the ACMTRM stage and then it gets stuck. The same thing happens when booting from a USB installer. The motherboard is an Asus ROG Strix B860-F Gaming WIFI (with USB audio). I read here about success with Tahoe using Clover, since the latest version includes an automatic quirk/patch for modern CPUs: AutoModernCPUQuirks. Has anyone tried this version of Clover on Arrow Lake? I can't find any online resources on how to configure config.pliist. Thanks in advance. Quote Link to comment https://www.insanelymac.com/forum/topic/362692-unable-to-boot-into-macos-tahoe-with-core-ultra-arrow-lake/ Share on other sites More sharing options...
verdazil Posted April 29 Share Posted April 29 @W3b0, replace the Lilu.kext kext with the new version Lilu.kext.zip Quote Link to comment https://www.insanelymac.com/forum/topic/362692-unable-to-boot-into-macos-tahoe-with-core-ultra-arrow-lake/#findComment-2849637 Share on other sites More sharing options...
W3b0 Posted April 29 Author Share Posted April 29 Hi @verdazil Already have Lilu 1.7.2 installed. Also tried with WEG 1.7.1d. Both kexts and bootloader were updated with OCAuxiliaryTools Tried also a new EFI build with OpCore-Simplify tool and the pre-built ones available at @MaLd0n site with no success Attached my config.plis config.plist Quote Link to comment https://www.insanelymac.com/forum/topic/362692-unable-to-boot-into-macos-tahoe-with-core-ultra-arrow-lake/#findComment-2849639 Share on other sites More sharing options...
verdazil Posted April 29 Share Posted April 29 @W3b0, try set DisableIoMapper (OC config) to YES 1 Quote Link to comment https://www.insanelymac.com/forum/topic/362692-unable-to-boot-into-macos-tahoe-with-core-ultra-arrow-lake/#findComment-2849640 Share on other sites More sharing options...
W3b0 Posted April 29 Author Share Posted April 29 @verdazil I tried your suggestion, but it hangs at the exact same stage Quote Link to comment https://www.insanelymac.com/forum/topic/362692-unable-to-boot-into-macos-tahoe-with-core-ultra-arrow-lake/#findComment-2849641 Share on other sites More sharing options...
Slice Posted April 29 Share Posted April 29 Try to disable E-core in BIOS. Clover 5172 is ready for Arrow Lake. You may read instructions and look for config-sample.plist. https://github.com/CloverHackyColor/CloverBootloader/releases/tag/5172 2 1 1 Quote Link to comment https://www.insanelymac.com/forum/topic/362692-unable-to-boot-into-macos-tahoe-with-core-ultra-arrow-lake/#findComment-2849643 Share on other sites More sharing options...
W3b0 Posted April 29 Author Share Posted April 29 (edited) 5 hours ago, Slice said: Try to disable E-core in BIOS. Clover 5172 is ready for Arrow Lake. You may read instructions and look for config-sample.plist. https://github.com/CloverHackyColor/CloverBootloader/releases/tag/5172 Hi @Slice I tried that, but it didn't work; I got the same error. But I followed a recent suggestion from a user on a well-known forum to change the model from MacPro7,1 to iMac20,2, and to my surprise, it worked, displaying the Tahoe welcome assistant. I only had to disable my previous USB mapping and enable USBInjectAll + XHCI-unsupported and the XhciPortLimit quirk. What I do notice is that the graphics performance is somewhat laggy. I don't know if it's related to the fact that this system definition expects an iGPU, and I'm unsure if it will work correctly. I tried to revert to MacPro7,1, but the same ACMTRM error reappeared. I have no idea what could be causing this error. A simple guide on how to replace it with Clover would be great. I haven't used it in a long time, and I don't know which quirks to use. I've looked for information in videos and forums, but I can't find the right hardware combination for my setup. Thanks! Edited April 29 by W3b0 Quote Link to comment https://www.insanelymac.com/forum/topic/362692-unable-to-boot-into-macos-tahoe-with-core-ultra-arrow-lake/#findComment-2849649 Share on other sites More sharing options...
strangeron Posted April 30 Share Posted April 30 11 hours ago, W3b0 said: I only had to disable my previous USB mapping and enable USBInjectAll + XHCI-unsupported and the XhciPortLimit quirk. Could the USBMap/Port.kext be incompatible with the Tahoe? Quote Link to comment https://www.insanelymac.com/forum/topic/362692-unable-to-boot-into-macos-tahoe-with-core-ultra-arrow-lake/#findComment-2849661 Share on other sites More sharing options...
W3b0 Posted May 2 Author Share Posted May 2 On 4/29/2026 at 2:28 PM, Slice said: Try to disable E-core in BIOS. Clover 5172 is ready for Arrow Lake. You may read instructions and look for config-sample.plist. https://github.com/CloverHackyColor/CloverBootloader/releases/tag/5172 Solved with AppleMCEReporterDisabler.kext. ProvideCurrentCpuInfo now supports Arrow Lake according to the commits of the latest OpenCore version, so no more need for CPUTopologyRebuild.kext. In my case, using OpenCore MOD, the ACPI conditional patch is also unnecessary. I'd like to try Clover too; is there any specific documentation for Arrow Lake? Quote Link to comment https://www.insanelymac.com/forum/topic/362692-unable-to-boot-into-macos-tahoe-with-core-ultra-arrow-lake/#findComment-2849744 Share on other sites More sharing options...
deeveedee Posted May 2 Share Posted May 2 Is it possible that AppleMCEReporterDisabler.kext is masking the real problem? Quote Link to comment https://www.insanelymac.com/forum/topic/362692-unable-to-boot-into-macos-tahoe-with-core-ultra-arrow-lake/#findComment-2849745 Share on other sites More sharing options...
W3b0 Posted May 2 Author Share Posted May 2 (edited) 27 minutes ago, deeveedee said: Is it possible that AppleMCEReporterDisabler.kext is masking the real problem? What you mean? Booting was impossible except with iMac20,2 smbios. When added AppleMCEReporterDisabler.kext there was no more hang by ACMTRM, if I deactivate the AppleMCEReporterDisabler.kext it does not boot with MacPro7,1. Days later, doing research in the latest github commits, I activated the ProvideCurrenCpuInfo quirk that was updated in OC 1.0.7 for Arrow Lake and yesterday after installing OC MOD 1.0.8 I deactivated the patch that removes the ACPI conditionals present in the BIOS of the 800 series motherboards, since OC MOD 1.0.8 supposedly includes more features than the official version, and for my surprise it booted. Edited May 2 by W3b0 Quote Link to comment https://www.insanelymac.com/forum/topic/362692-unable-to-boot-into-macos-tahoe-with-core-ultra-arrow-lake/#findComment-2849747 Share on other sites More sharing options...
W3b0 Posted May 15 Author Share Posted May 15 (edited) On 4/29/2026 at 2:28 PM, Slice said: Try to disable E-core in BIOS. Clover 5172 is ready for Arrow Lake. You may read instructions and look for config-sample.plist. https://github.com/CloverHackyColor/CloverBootloader/releases/tag/5172 Hello Slice I was able to boot with Clover on Arrow Lake, but with an older version, from an EFI folder for Raptor Lake. I was even able to update to the latest version by manually replacing BOOTX64.efi and CLOVER64.efi, and it boots without problems by copying the quirks settings from my OpenCore .plist. But when I try to do a clean install and apply the same configuration to the clean install .plist, upon booting, I see the black status bar on a white background, like in previous versions of macOS, frozen at 40% of loading I suspect it's a problem with how I'm configuring the .plist, and I'm overlooking something fundamental. Could you help me? Thanks Edited May 15 by W3b0 Quote Link to comment https://www.insanelymac.com/forum/topic/362692-unable-to-boot-into-macos-tahoe-with-core-ultra-arrow-lake/#findComment-2850347 Share on other sites More sharing options...
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