DiepNguyen Posted June 29, 2025 Share Posted June 29, 2025 Hi, I just installed Tahoe beta 2 successully on my P330 tiny so I would like to share some steps to install so anyone is struggling could follow. 1. Use an existing EFI that is working well with previous macOS 2. Upgrade Opencore 1.0.5 https://github.com/dortania/build-repo/releases and other kext on that page the mentioned for macos26. 3. Disable all the USB kexts,USBPorts.kext,USBInjectAll.kext,USBToolBox.kext,UTBMap.kext,USBMap.kext,XHCI-unsupported.kext, XhciPortLimit,etc.Use the SSDT-UIAC.aml instead.（Can be exported by Hackintool. 4. Use the attachment lilu.kext 5. edit config.plis to add SSDT-UIAC.aml and remove kexts on steps 3. 6. Change the msbios to supported msbios for tahoe And now you can install tahoe, after success, you can fig the usb also. See my attached EFI Hope it helps everyone to save time. Lilu.kext.zip OC_tahoe.zip 1 Quote Link to comment https://www.insanelymac.com/forum/topic/361255-guide-steps-to-install-tahoe/ Share on other sites More sharing options...
Haven David Posted July 9, 2025 Share Posted July 9, 2025 On 6/29/2025 at 8:36 AM, DiepNguyen said: Hi, I just installed Tahoe beta 2 successully on my P330 tiny so I would like to share some steps to install so anyone is struggling could follow. 1. Use an existing EFI that is working well with previous macOS 2. Upgrade Opencore 1.0.5 https://github.com/dortania/build-repo/releases and other kext on that page the mentioned for macos26. 3. Disable all the USB kexts,USBPorts.kext,USBInjectAll.kext,USBToolBox.kext,UTBMap.kext,USBMap.kext,XHCI-unsupported.kext, XhciPortLimit,etc.Use the SSDT-UIAC.aml instead.（Can be exported by Hackintool. 4. Use the attachment lilu.kext 5. edit config.plis to add SSDT-UIAC.aml and remove kexts on steps 3. 6. Change the msbios to supported msbios for tahoe And now you can install tahoe, after success, you can fig the usb also. See my attached EFI Hope it helps everyone to save time.Lilu.kex.zip 307.56 kB · 2 downloads OC_tahoe.ip 7.46 MB · 2 downloads Super helpful, especially the part about disabling all USB kexts and switching to SSDT-UIAC. That’s often overlooked. Glad to hear Tahoe beta 2 runs on the P330 Tiny — I’ve been debating whether to try it. I’ll check out your EFI and give it a shot soon! Quote Link to comment https://www.insanelymac.com/forum/topic/361255-guide-steps-to-install-tahoe/#findComment-2836484 Share on other sites More sharing options...
dragnetmahjong Posted July 9, 2025 Share Posted July 9, 2025 (edited) On 6/29/2025 at 8:36 AM, DiepNguyen said: Hi, I just installed Tahoe beta 2 successully on my P330 tiny so I would like to share some steps to install so anyone is struggling could follow. 1. Use an existing EFI that is working well with previous macOS 2. Upgrade Opencore 1.0.5 https://github.com/dortania/build-repo/releases and other kext on that page the mentioned for macos26. 3. Disable all the USB kexts,USBPorts.kext,USBInjectAll.kext,USBToolBox.kext,UTBMap.kext,USBMap.kext,XHCI-unsupported.kext, XhciPortLimit,etc.Use the SSDT-UIAC.aml instead.（Can be exported by Hackintool. 4. Use the attachment lilu.kext 5. edit config.plis to add SSDT-UIAC.aml and remove kexts on steps 3. 6. Change the msbios to supported msbios for tahoe And now you can install tahoe, after success, you can fig the usb also. See my attached EFI Hope it helps everyone to save time. level devil Lilu.kext.zip 307.56 kB · 2 downloads OC_tahoe.zip 7.46 MB · 2 downloads Modifying EFI, OpenCore and kexts carries significant risks. If not followed properly or if the user's current EFI or hardware is not fully compatible, it may result in the computer being unable to boot into any operating system. Edited November 6, 2025 by dragnetmahjong Quote Link to comment https://www.insanelymac.com/forum/topic/361255-guide-steps-to-install-tahoe/#findComment-2836486 Share on other sites More sharing options...
kahunalx Posted September 4, 2025 Share Posted September 4, 2025 Great stuff! I'll be happy if I can run Sequoia for the moment, but this is awesome as the next step! Quote Link to comment https://www.insanelymac.com/forum/topic/361255-guide-steps-to-install-tahoe/#findComment-2840164 Share on other sites More sharing options...
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