Xiaomi-pro-hackintosh: Error update to big sur beta 3

[ghondar]

I'm trying update to big sur beta 3 but I get this screen

I've tried disabling itlwm and voodoo controller kexts but still staying on that screen

[stevezhengshiqi]

It's due to incompatibility of VirtualSMC on beta3. You need to add vsmcgen=1 in config.plist - NVRAM - Add - boot-argssection or use FakeSMC to replace with VirtualSMC.

[ghondar]

It doesn't work, I tried setting vsmcgen=1 and also changing VirtualSMC to FakeSMC, I get this:

[stevezhengshiqi]

I recommend the adding vsmcgen=1 boot-args method. Make sure you are using vanilla v1.4.2 EFI release with that boot-args.

• Download the EFI v1.4.2 release
• Delete OC and BOOT folder and then copy the new two folders into your EFI partition
• Open /EFI/OC/config.plist with TextEditor.app, press Win + F and find boot-args. Change the code to the following:

<key>7C436110-AB2A-4BBB-A880-FE41995C9F82</key>
<dict>
    <key>boot-args</key>
    <string>darkwake=0 gfxrst=1 vsmcgen=1</string>

• Save and exit. Restart the device.

[ghondar]

I have followed your steps, but I still have the same log as the image above using -v and without using -v, I get 1% of the bar and the laptop restarts 😢

I read that you do not have your laptop to test, btw thanks anyway for your help, I will keep trying and if I succeed I will post it

[stevezhengshiqi]

In the group chat, almost everyone succeeded by adding that boot-args, so I think it should be smooth to upgrade to beta 3. BTW, you can wait until VirtualSMC provides full support for beta 3.

[cook1e0]

Just adding on to this, I had the same issue as the author while upgrading from 10.15.6 to Big Sur Beta 2. Tried adding vsmcgen=1 and replacing VirtualSMC with FakeSMC. Ended up giving up and restoring my Catalina backup.

[stevezhengshiqi]

When updating the latest macOS beta version, it's better to use ./makefile.sh --NO_GH_API --PRE_RELEASE=Kext --PRE_RELEASE=OC to generate EFI with latest drivers.

[cook1e0]

Update regarding this issue, just updated my EFI to the 1.4.3 release and upgraded to Big Sur Beta 3, went flawlessly.