Pre-Installazione Lenovo Yoga S740 Ice Lake 14" (S740-14IIL)

[A23SS4NDRO]

Just now, Sabau Ioan said:

Alessandro or Gengik84, what's your opinion?

If that's a bootloader issue, nothing can yet be done to overcome that.

 

Acidanthera team already tries to make the best out of his own efforts, but unfortunately icelake laptops are still unsupported, especially this one at the title of the topic - other people at insanelymac.com managed to boot but iGPU drivers were missing, so we need to ping them if anything is changed.

 

When I'll have some time, I'll try to remove the SSD, but I have to be careful with the warranty policies about that.

At this point in time I'm not using that laptop since I got used to Linux/macOS, and I had many issues with Linux as well, such as:

 

-trackpad not recognized by linux kernel

-audio not working in kernel version 5.5.0 and above (only on v5.4.0 I have onboard audio and microphone working)

 

-IRQ problem on boot, check the solution/workaround here

 

 

https://support.lenovo.com/pl/en/solutions/ht505228

Edited May 30, 2020 by A23SS4NDRO

[A23SS4NDRO]

Many things can be understood from responses like these

 

1) https://github.com/acidanthera/bugtracker/issues/832#issuecomment-615248243

 

This guy down here "said" that he managed to boot on insanelymac.com also, they deleted the page https://www.insanelymac.com/forum/topic/343549-ice-lake-success-to-install-macos-with-opencore-but/

this is his attempt to contact acidanthera about that

2) https://github.com/acidanthera/bugtracker/issues/942

[Sabau Ioan]

I also installed the last Ubuntu but didn't experienced the problems you said, and overall I've installed macos Mojave (QEMU- virtual machine) on ubuntu  but I was not satisfied about the graphic acceleration. 

[A23SS4NDRO]

Just now, A23SS4NDRO said:

they deleted the page https://www.insanelymac.com/forum/topic/343549-ice-lake-success-to-install-macos-with-opencore-but/

this is the webcache of the original page, but maybe he was lying about success

 

https://webcache.googleusercontent.com/search?q=cache:https://www.insanelymac.com/forum/topic/343549-ice-lake-success-to-install-macos-with-opencore-but/

[Sabau Ioan]

I saw that, and I didn't understood why he deleted the page, I told myself that is possible some theory of conspiration  haunting their heads. More than that I've noticed a totally silence regarding the subject and I asked myself "what is happening bro?" 

[A23SS4NDRO]

But the most astonishing thing is that acidanthera treats Ice Lake cpus and the related chipset, maybe intel 495 (officially adopted by apple) as if they were AMD, or Z390 boards (not officially supported)

 

source:

 

 

And also, they're not planning to even support that in the near future: I encourage you to use linux there 

 

Edited May 30, 2020 by A23SS4NDRO
added source

[Sabau Ioan]

Thank you for the link's you posted. It seems ardentwheel had the same issue as me.

It 's possibile to load here  videos?

[Sabau Ioan]

It's strange, my wifi card is not embedded in cpu chip, I already replaced it with an BCM 4352z (lenovo edition), as you can see in the photo.

[A23SS4NDRO]

59 minutes ago, Sabau Ioan said:

It's possibile to load here  videos?

Yes you can

[Sabau Ioan]

I'll try to make a video file with my attempts! 

Thank you again !

[Sabau Ioan]

Some proofs  - first video without ssd on the socket. The img file is a screen shot made just before laptop shut's down. As you can see it pasts the IOConsoleUsers.

socket

[Sabau Ioan]

The second video is with Micron SSD on the MB socket. I am not a cheater. The wifi card is replaceble, not embedded on CPU chip. It's obvious the difference between the 2 situations.

[Sabau Ioan]

Please give us more details, about the bootloader, perhaps a photo with the installation menu, what kind of format have you chosen for partition.

[Sabau Ioan]

Please post here a photo with the installation menu! A lot of people are unconfident about the results. Perhaps this way will drive us to solve as a team this problem and close the topic succesfull.

[Sabau Ioan]

I took a look on your efi folder and you don't have a patched DSDT for battery management so the ACPIBatteryMangement.kext is useless, you can remove it from kext folder. You may also remove the AirportBrcmFixUp.kext unless you have replaced your wifi card with a Broadcom one. Also AppleBacklightFixup.kext is useless without a pnlf device. All of them may be used after a succesfull  clean installation (postinstall). 

[Sabau Ioan]

I forgot to ask you a question Your Catalina is 10.15.4 or 10.15.5 ?

Don't try with patched DSDT, just remove the kexts! Patching DSDT for battery is not a simple attempt.

[Sabau Ioan]

And another advice - backup your efi folder before any change. This amazing result may be fragile.

[Sabau Ioan]

Ok, excuse me!

I don't know  about your skills, hope you're not offended.

[Sabau Ioan]

Doesn't matter, if we work together there is a hope. And hope is a good thing!

Anyway there is a significantly advance!

[Sabau Ioan]

I told myself the same thing. I've just ordered a new Western  Digital SN750 black SSD and a new SSD adapter m2 ngff nvme to USB.

I tried the usb installer with your efi but the outcome was the same. 

So, in a few days we'll have the answer.

[marianopela]

21 hours ago, TUNIN96 said:

There could be a problem with the way you created you USB with. Have  you tried createinstallmedia?

[Gengik84]

magari se alleghi il log forse è più facile provare a capire

[Gengik84]

hai provato a installare su un disco esterno?

[Gengik84]

prova a aggiungere ssdt-PMC anche se mi sarei aspettato altri errori

in caso prova anche a riscaricare l'installer e ricreare la usb, magari anche su altro supporto

[Gengik84]

questa è sempre la prima fase di installazione?