Mac OS won’t boot; boot camp will.

Can someone help fix this?!

currently running:

diskutil mount /dev/disk2s1

Volume Macintosh HD on /dev/disk2s1 mounted.

diskutil verify volume /dev/disk2s1

[started file system verification on disk2s1 Macintosh HD]

Verifying file system

[Volume could not be unmounted]

Using live mode

Performing fsck_apfs -n -l -x /dev/rdisk2s1

[\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \]

iMac 2013

It was on the latest version of Mojave (I don’t not recall exact version number as it is set to automatically update..)

the only difference to standard recovery mode was that it was reinstalling Mojave’s OS and the internet recovery mode was attempting to ‘reinstall’ Catalina (I never had it to my knowledge - only Mojave) but it was the same as normal recovery it would work normally until about a quarter and it would stop at 4 hours 50 mins...then increase...and just keep increasing. I even left it overnight it was still not finished. I believe this isn’t normal.

and when I boot to Windows boot camp. Everything is fine! I have 1 TB HDD with a 200Gb bootcamp partition and a 800gb (500gb used,300gb) Macintosh HD partition.

After trying to repair the volume in terminal from internet recovery:

volume could not be unmounted.

restoring the original state found as mounted.

error: -69565: This file system does not support repair of a mounted volume under any mount option.

I can confirm I had 10.14.6, this is just from CMD + R....internet recovery is using Catalina, I believe this is because it’s getting the latest version from the server than normal standard recovery (CDM+R)

I have tried installing Mac Mojave on a external drive and I get a grey screen when the OS has booted up. It’s the apple OS but I need something to trigger finder or system preferences, applications to open etc.

Can you extract an ISO from the OS installer so I can make a bootable USB drive?

preferably Mojave or Catalina and put this on google drive?

i have backed up my drive...I just can’t erase the Macintosh volume...

Good news I found using a High Sierra bootable usb installer allowed me to erase the partition (this didn’t allow with the macs native recovery or bootable Mojave’s etc..), I first tried first aid that didn’t work too.

i have already backed up my files by loading windows boot camp and using an APFS file system viewer with read and write access, to access my drive and I copy and pasted my files onto a separate drive.

apparently this is a common issue on Mac Mojave OS: http://iosbrain.com/blog/2018/08/25/fix-for-prohibitory-symbol-do-not-enter-stop-sign-when-booting-into-or-updating-macos-mojave-10-14-beta/

Yes.