macOS High Sierra (10.13) Unsupported Macs Thread

[nekton1]

According to Mork vom Ork, the reason why the RX460 is no longer working in 10.13 is because:

"There seems to be a new checkroutine within AMD9500Controller: it checks for the Part# of the installed AMD card.
If it finds this value for Part#: 113-4E3531U or 113-4E353BU , then it sets "Radeon RX 580" as modelname and chooses "Orinoco" (which will match perfectly for RX480!) instead of "AMD,RadeonFramebuffer" as its related framebuffer.

That's because Apple's eGPU kit contains Sapphire AMD RX 580 PULSE as their bundled cards."

I've looked in the AMD9500Controller but have yet to spot where this check is coded. Anyone have a pointer?

 

[matgen84]

@foxlet

Any news for NewCore v0.2 or v0.3? Please. Thanks.

 

[roysterdoyster]

@foxlet

Any news for NewCore v0.2 or v0.3? Please. Thanks.

I second that.

Would the knowledge banks amongst fellow members kindly share:
1 NewCore version latest version (by foxlet)
2 Update solution (by Czo)
3 Highsierra with APFS: a) is is possible AT ALL on an unsupported machine b) how is it done

hands-on info would be highly appreciated.

 

[nekton1]

1. V0.3 beta is available if you ask foxlet politely
2. A new version of the update solution is in beta test if you ask Czo politely
3. a) It is possible, and b) ask foxlet for instructions

Personally, I'd wait a few days until beta 5 because beta 4 still has a lot of bugs to fix.

 

[roysterdoyster]

1. V0.3 beta is available if you ask foxlet politely
2. A new version of the update solution is in beta test if you ask Czo politely
3. a) It is possible, and b) ask foxlet for instructions

Personally, I'd wait a few days until beta 5 because beta 4 still has a lot of bugs to fix.

Thanks, mate. beta 4 is definitely buggy, crashing quite often. Will do as advised.

Cheers

 

[toru173]

Hi all,

I've found a new way to create an installer, which may help foxlet and dosdude1. Steps below:

1: Restore BaseSystem to (minimum) 8GB external media
2: Copy over the whole beta .app. Replace the placeholder app from BaseSystem
3: Reboot

Why this works:
When BaseSystem boots, it runs rc.cdrom. This creates a RAM drive and mounts it at /System/Installation. It then runs launchd, which runs rc.install. THIS looks for an installer at /System/Installation, which contains a symlink to .app/SharedSupport/InstallESD.dmg. Put the full installer there, and she boots no problems!

 

[dosdude1]

Hi all,

I've found a new way to create an installer, which may help foxlet and dosdude1. Steps below:

1: Restore BaseSystem to (minimum) 8GB external media
2: Copy over the whole beta .app. Replace the placeholder app from BaseSystem
3: Reboot

Why this works:
When BaseSystem boots, it runs rc.cdrom. This creates a RAM drive and mounts it at /System/Installation. It then runs launchd, which runs rc.install. THIS looks for an installer at /System/Installation, which contains a symlink to .app/SharedSupport/InstallESD.dmg. Put the full installer there, and she boots no problems!

Wow, thanks! I'll test this out and implement it in the latest version of my tool.

 

[Hawky82]

This Problem:
iMac9,1 (Early 2009) - Missing Screen Brightness Controls (buttons don't work either)

I Just want you to know that I also got that problem, but I fixed it by replacing some files from older version. But I am not sure which one it was. I think it was the AplleBacklightExpert.kext

I will have a look at it and tell you the right way.

 

[eurasian]

Installed Beta 4 in a iMac 2008 with the dosdude1 patch, all ok ....Safari 11 is very fast.

 

[matgen84]

Hi all,

I've found a new way to create an installer, which may help foxlet and dosdude1. Steps below:

1: Restore BaseSystem to (minimum) 8GB external media
2: Copy over the whole beta .app. Replace the placeholder app from BaseSystem
3: Reboot

Why this works:
When BaseSystem boots, it runs rc.cdrom. This creates a RAM drive and mounts it at /System/Installation. It then runs launchd, which runs rc.install. THIS looks for an installer at /System/Installation, which contains a symlink to .app/SharedSupport/InstallESD.dmg. Put the full installer there, and she boots no problems!

Good Job. What is "the placeholder app from BaseSystem" I don't understand. Thanks

Sorry for my english

 

[toru173]

Good Job. What is "the placeholder app from BaseSystem" I don't understand. Thanks

Sorry for my english

I basically deleted the "Install macOS High Sierra Beta.app" file that was there after restoring and replaced it with the full file downloaded from the App Store. The key thing is to get the contents/SharedSupport folder in the file, because that's where the installer actually looks for the install files.

 

[parrotgeek1]

for the trackpad (and volume buttons on MB5,1) has anyone tried replacing AppleUSBTopCase.kext & AppleTopCase.kext from 10.11.6?

 

[BuffyzDead]

Wow, thanks! I'll test this out and implement it in the latest version of my tool.

Another way to create a bootable macOS High Sierra Installer, in this video:
https://9to5mac.com/2017/08/02/how-...sierra-usb-install-drive-video/#disqus_thread

 

[nandor690]

Well I got past macOS High Sierra from installing the firmware by creating my own InstallESD.dmg, but now I get a failed to install when it gets to the 15 minutes to complete. But at least now it doesn't install the wrong firmware (causing a reboot to black screen) when I'm using Clover to trick the install into thinking it is a supported Mac using a smbios.

 

[MisterBiro]

This Problem:
iMac9,1 (Early 2009) - Missing Screen Brightness Controls (buttons don't work either)

I Just want you to know that I also got that problem, but I fixed it by replacing some files from older version. But I am not sure which one it was. I think it was the AplleBacklightExpert.kext

I will have a look at it and tell you the right way.

What version of this did you use?
I tried replacing the version from the 10.12 installer on my 10.12.6 installation (as the backlight doesn't work there either) and I was unable to rebuild the kext cache due to unresolved symbols.

 

[nandor690]

What version of this did you use?
I tried replacing the version from the 10.12 installer on my 10.12.6 installation (as the backlight doesn't work there either) and I was unable to rebuild the kext cache due to unresolved symbols.

I tried El Capitan, there also is 2 kext, applebacklight and applebacklightexpert. I repaired permissions with kextutility but brightness control still doesn’t work and the slider disappeared. I still have versions of the Yosemite and Mavericks install apps. I’m going to try those next

 

[RogueB]

1. V0.3 beta is available if you ask foxlet politely
2. A new version of the update solution is in beta test if you ask Czo politely
3. a) It is possible, and b) ask foxlet for instructions

Personally, I'd wait a few days until beta 5 because beta 4 still has a lot of bugs to fix.

I left a polite request for Foxlet in the private message section of the forum, but have not heard from the programmer.
I did contact Czo and he did provide test patches for the update process; thank you.
I am running high Sierra Beta4 on a MacBookPro 5,2 (17 inch, Mid-2009) and have not encountered many serious bugs. Finder, thought, does have some issues, such as recognizing the correct installer.

Thanks to all participating in this endeavor.

 

[nandor690]

I left a polite request for Foxlet in the private message section of the forum, but have not heard from the programmer.
I did contact Czo and he did provide test patches for the update process; thank you.
I am running high Sierra Beta4 on a MacBookPro 5,2 (17 inch, Mid-2009) and have not encountered many serious bugs. Finder, thought, does have some issues, such as recognizing the correct installer.

Thanks to all participating in this endeavor.

That’s why I’m trying to get this clover method fixed and running again. You can run apfs with clover on unsupported Mac. And no one wants to provide beta 0.3

 

[nandor690]

I know a couple of compatibility checks from the older versions like Yosemite, but does anyone know where all the compatibility checks are that are done in Sierra and High Sierra? This info would be much appreciated

 

[TheStork]

dosdude1 and foxlet,

Just saw this at Pike's blog. It might be of interest to you all.

https://pikeralpha.wordpress.com/2017/08/05/osinstall-mpkg-appears-to-be-missing-or-damaged/

 

[dosdude1]

dosdude1 and foxlet,

Just saw this at Pike's blog. It might be of interest to you all.

https://pikeralpha.wordpress.com/2017/08/05/osinstall-mpkg-appears-to-be-missing-or-damaged/

I actually already managed to fix that issue. In the process of updating High Sierra patcher to implement it.

 

[dosdude1]

Just finished updating High Sierra patcher, now working with the native High Sierra installer (well, sort of). No longer needing to distribute a copy of BaseSystem.dmg with the tool significantly reduces the download size, from about 500MB down to ~51MB. Download available here. Enjoy!

 

[nandor690]

I actually already managed to fix that issue. In the process of updating High Sierra patcher to implement it.

There is some good info in there. Although the time and date has been known and it apfs will work with chameleon and clover if you add apfs.efi to /EFI/Clover/drivers64UEFI. Thanks for posting

 

[dlfgma]

@dosdude1

Does your patch now enable use of APFS yet?

 

[dosdude1]

@dosdude1

Does your patch now enable use of APFS yet?

It does not, and personally, I see no real advantage of using APFS on unsupported machines. In my view, it adds unnecessary complications for very little, if any, benefit. I may work on it at some point, though, but as of right now I'm more focused on getting the OS to run properly and well on unsupported systems.