Mojave is not ignoring ownership on external SSD disk

[katbel]

I tried to do the Ignore ownership on a SSD external disk, but it's not working
I did it even with a terminal command
sudo diskutil disableOwnership mydisk
but I'm still unable to access my user on the external disk
The external is APFS formatted while the iMac is not.
The external is password protected but it's mounted of course.
Any idea of how to solve this puzzle?

P.s. The SSD disk has Mojave with the Security Update 2020-003
The iMac doesn't ?

 

[Fishrrman]

I don't use terminal for this.

Have you tried:
- Mount external SSD on desktop
- Click on drive icon to select it, then...
- Open "get info" for it (command-i)
- Click lock at bottom of get info and enter password
- Put a check into "ignore ownership on this volume" (sharing & permissions)
- Close get info

???

 

[katbel]

I don't use terminal for this.

Have you tried:
- Mount external SSD on desktop
- Click on drive icon to select it, then...
- Open "get info" for it (command-i)
- Click lock at bottom of get info and enter password
- Put a check into "ignore ownership on this volume" (sharing & permissions)
- Close get info

???

Of course, it was my first step. Then , because I still didn’t have access to my user
I tried with terminal