MacOS/Install HighSierra disable APFS

 

(Optional) Prevent APFS file system- default to HFS
Some users may prefer HFS file system and want to install without converting the system disk to the new default APFS file system. To this end, we've created a script called No-Convert which is included when creating your bootable USB installer using UniBeast. Running that script in Terminal will prevent automatic APFS file system conversion. Skip this step to default to APFS.
 

a. Press the hotkey to choose boot device (F12 for Gigabyte motherboards, F8 for ASUS motherboards, F11 for ASrock motherboards)
b. Choose USB
c. At Clover boot screen, choose Boot OS X Install from Install macOS High Sierra again
d. After the installer completely boots, In the top menu bar choose Utilities, and open Terminal
e. Type the following:

Code (Text):

/Volumes/Image\ Volume/No-Convert

f. Reboot
​

10. Press the hotkey to choose boot device (F12 for Gigabyte motherboards, F8 for ASUS motherboards, F11 for ASrock motherboards)
11. Choose USB
12. At the Boot Screen, choose High Sierra
13. Complete macOS installation. The system will automatically reboot.