[Solved] Prevent APFS Conversion - Mac

[Injury]

Just wondering how to prevent the switch from Mac OS Extended Journaled to APFS on an actual Mac during installation.

Edit: Added solution to first post for ease of reference

Solution: (Terminal Entry)

/Volumes/"Image Volume/Install macOS High Sierra.app"/Contents/Resources/startosinstall --volume /Volumes/X --converttoapfs NO --agreetolicense

X = name/partition that you want to install to

 

[Feartech]

Just wondering how to prevent the switch from Mac OS Extended Journaled to APFS on an actual Mac during installation.

first post:
https://www.tonymacx86.com/threads/...n-high-sierra-update-or-fresh-install.232855/

 

[Injury]

first post:
https://www.tonymacx86.com/threads/...n-high-sierra-update-or-fresh-install.232855/

Thanks, the fresh install Terminal entry seems to have been working a little, but I can't get it to continue. It keeps saying "Error: could not find target..."

My drive is called "Macintosh HD", so I assume I would change the "the_target_volume" to "Macintosh HD", but it's not working. I tried "Macintosh\ HD" as well, and that didn't work either.

Should I post this in that thread?

 

[Injury]

Not sure if I got it working. Just saw a bunch of numbers in Terminal and then when it got to 100 it said it was restarting the system

If this did work, I actually need to fix the Terminal Entry.
Furthermore if it did work, I'll ask RehabMan if the entry is correct etc... Seems like there's something off
-Maybe an example? idk

 

[Feartech]

Thanks, the fresh install Terminal entry seems to have been working a little, but I can't get it to continue. It keeps saying "Error: could not find target..."

My drive is called "Macintosh HD", so I assume I would change the "the_target_volume" to "Macintosh HD", but it's not working. I tried "Macintosh\ HD" as well, and that didn't work either.

Should I post this in that thread?

did this work:

/Applications/"Install macOS High Sierra.app"/Contents/Resources/startosinstall --converttoapfs NO --agreetolicense

?

 

[Injury]

YES!! I got it working!!!

I'll post the Terminal entry that I used soon.

 

[Injury]

did this work:

/Applications/"Install macOS High Sierra.app"/Contents/Resources/startosinstall --converttoapfs NO --agreetolicense

?

No, I had to edit/change the Terminal entry, specifically the "the_target_volume" bit to "/Volumes/X"

X = Name of the partition/drive that you want to install macOS High Sierra to.

I'll double check and reinstall to be sure. All I know right now is that it worked -changing the Terminal entry.

 

[Injury]

****ing Apple Support is so useless. Christ...
The awkward moment when the users know better than the service providers... just wow...

 

[Injury]

Okay, so I booted into the macOS High Sierra Installer USB that I made in Terminal by holding down the "alt" key during start up.

In Disk Utility, I erased and formatted the drive for "GUID" and the "Mac OS Extended Journaled" file system. Then I quit Disk Utility.

From there, I opened up Terminal from the top menu bar under Utilities and entered this:

/Volumes/"Image Volume/Install macOS High Sierra.app"/Contents/Resources/startosinstall --volume /Volumes/X --converttoapfs NO --agreetolicense

X = name/partition that you want to install to

edit: This works when using the USB installer

 

[Obvious Answer Man]

UniBeast includes a script to prevent the conversion.