I’ve recently upgraded to macOS catalina. My automount mount for music media was broken. I fixed it and today it is again not working.
The problem and solution
The last change I did was to install the supplemental update for 10.15.7 which seems to overwrite the /etc/auto_master so my /etc/auto_smb wasn’t loaded anymore. Here’s my current working content:
# Automounter master map
+auto_master # Use directory service
#/net -hosts -nobrowse,hidefromfinder,nosuid
/home auto_home -nobrowse,hidefromfinder
/- auto_smb -nosuid,noowners
Don’t forget to run
sudo automount -vc
after it you’ve changed the file. Your automount should now work again.