Don't see "install MacOS High Sierra" partition when booting from USB…

[Slarrat]

Hi,
I'm trying to install MacOS High Sierra on a new build : MSI Z270 Gaming Plus, Intel Core i5 7400, EVGA GTX 1060 6G SC Gaming.
I made the changes for the Bios as described in the installation guide of this site, formatted a usb os extended journaled with guid, ran the latest version of "Unibeast" (uefi, no graphic drivers, high sierra), copied the "MultiBeast High Sierra Edition" in the new "Install MacOS Hight Sierra" partition (Note that a second partition, EFI named EBP, has been created), plugged the usb into the new computer (windows 10's ssd is disconnected) and when I reach the clover boot page, I can see no "install MacOS High Sierra" partition to boot.
I'm sure that this stupid problem is the very first of a long list which I encounter…
If you could help me
Thanks

 

[cmn699]

Hi,
I'm trying to install MacOS High Sierra on a new build : MSI Z270 Gaming Plus, Intel Core i5 7400, EVGA GTX 1060 6G SC Gaming.
I made the changes for the Bios as described in the installation guide of this site, formatted a usb os extended journaled with guid, ran the latest version of "Unibeast" (uefi, no graphic drivers, high sierra), copied the "MultiBeast High Sierra Edition" in the new "Install MacOS Hight Sierra" partition (Note that a second partition, EFI named EBP, has been created), plugged the usb into the new computer (windows 10's ssd is disconnected) and when I reach the clover boot page, I can see no "install MacOS High Sierra" partition to boot.
I'm sure that this stupid problem is the very first of a long list which I encounter…
If you could help me
Thanks

• Upload images of "BIOS"-> "Boot Option Priorities" list showing all the disks in that list
• Upload images of "BIOS Graphics selection"
• Upload image of "F-11 Boot Device selection" screen
• Upload image of "Clover Boot Manager" screen
• If you have correctly created your USB installer using Unibeast after the Flash drive has already been partitioned and formatted ("Erased") in Disk Utility , the final screen as you dragged and dropped the Multibeast on to the USB Installer should look like the uploaded image.
• That will be the first and only time the EFI partition will be seen automatically 'mounted' on the desktop .
• Once you shut down the computer or eject the USB Installer the EFI partition of the disk will be hidden and you cannot find it inside the High Sierra UEFI USB Installer Flash disk.
• The only way to look inside EFI and edit any of its contents including CLOVER/kexts/Other. CLOVER/drivers64UEFI or CLOVER/config.plist, is to 'mount' the 'hidden EFI" partition using a software like EFI Mounter V3 or Clover Configurator Vibrant or via Terminal command.

• If you open and view the unhidden main partition of the USB installer, you will see the Install MacOS High Sierra file and the EFI_backups Folder . This default folder is now Empty.
• Anytime Clover is updated the old EFI will be backed up to this.
• Once you copy the Multibeast to the USB , you will see that too.

I don't know how you got an "EBP" in the USB what that represents!

 

[Slarrat]

Hi cmn699,
Thanks a lot for your answer, I've done all the pictures










Thank you…

 

[Slarrat]

ESP is the name of the EFI in get infos

 

[cmn699]

ESP is the name of the EFI in get infos
View attachment 300013

• Thank you for the uploaded BIOS Images, F-11 and the USB Creation steps .
• I checked all your uploaded images.
  • ESP =EFI System Partition=EFISys.
  • EFI is the original name for what we call currently UEFI (Unified EFI: renamed by the Consortium for the original Intel EFI)
• I have some suggestions for your BIOS to reduce the possibility of missing UEFI USB in Clover Boot Manager (CBM)Screen.
• In BIOS Boot Option Priorities, select each item and DISABLE leaving only your "UEFI Jetflash USB"
• You may still see some of the drives in F-11 screen even with this but it will be less.
• You can remove a lot more through the CBM Bash command tool
  • Go to the [> ]:ENTER
  • Wait till all the entries listed there
  • Then type the command > bcfg boot dump
  • # this will create a list of" true" and "phantom disks"
    • True disk will have "dev" prefix and Phantom disks will have "pciRoot"prefix
    • Each device has a number like 06 or 0and digit.
    • In the next command cfg boot rm 06 (or 0 and next number) for all "Bogus disk' one by one
    • When you finish typing bcfg boot rm for all seen "pciRoot" device numbers , re- type "bcfg boot dump"
    • Repeat this until you don't see any Bogus disks in the bcfg boot dump
    • When the list appears clean , "exit" command
    • Next esc>CBM screen
    • "ALT CTRL DEL "and on reboot go to "BIOS Setup">"Boot OptionsPriorities" and "Disable"any " unwanted disks" and "save(F10) and reboot>F-11>CBM screen to see if your UEFI USB is there and bogus and unwanted gone.
    • Upload new F-11 and CBM screen "Boot Device icons view"

 

[Slarrat]

Thank you for your answer,
I did what you suggested and there are no changes…

 

[cmn699]

Thank you for your answer,
I did what you suggested and there are no changes…
View attachment 300066
View attachment 300068
View attachment 300069

• In BIOS , BBS Hard disk and CD /DVD and BBS Floppy (if present) check and DISABLE all EXCEPT the Hard disk targeted for your High Sierra installation and Save (F-10)
• I just found your USB installer size is 32GB.
  • See if using an 8-16GB Flash disk (16GB preferred) will help.

 

[sreenmoh13]

I am having the exact same problem.

Mother board ASUS Strix 270E, Core i5 7500. I dont have XCHI hand off in my bios, but otherwise all options check out.

I will try a lower capacity USB drive

 

[brunohoro]

Same here... so odd. Wonder if it has something to do with the 10.13.2 macOS installer or some missing or outdated .efi file. What clover version are you guys on?

How did you download the installer app? I had to get it thru this method (http://osxdaily.com/2017/09/27/download-complete-macos-high-sierra-installer/) since my appstore keeps downloading a 19Mb version...

 

[cmn699]

Thank you for your answer,
I did what you suggested and there are no changes…
View attachment 300066
View attachment 300068
View attachment 300069

After I posted that response in #7, I went to check your Motherboard Specs etc from MSI website.

I then recked your current BIOS . It is shown in one of the images as Build date 02-14-2017

Then I noted this about a newer BIOS
Z270 GAMING PLUS (MS-7A75) V1.3 BIOS Release 2017-08-03

I was wondering why they had to release so soon after your BIOS date > I found the following :
-------------------------------------------------------------------------

1. This is AMI BIOS release

2. This BIOS fixes the following problem of the previous version:
- Updated micro code.
- Improved USB 2.0 device compatibility.
- Improved memory compatibility.
- Support clear optane setting.
----------------------------------------------------------------------------------------
That prompted me to test a new ADATA USB 3.0 Flash disk 32GB as a HighSierra 10.13.2 installer disk in my System with GA B85M-DS3h +intel i3 4160+Nvidia GT 710 .
I had no problem to reach the Installer screen >Disk Utility. I did not go through a new installation as I already have High Sierra 10.13.2 in that system.

I can then say it is NOT a 32 GB USB that is causing the problem.

• I will suggest upgrading your BIOS which supposedly "improves USB 2.0 device compatibility" according to the manufacturer of this board.

I did not check further as to what problems reported by users prompted them to come up with this new BIOS release.