#Mount system as writable (I do this in TWRP).

#this might be /system/system/etc/permissions/ on some devices
cd /system/etc/permissions/

#backup file
cp platform.xml platform.xml.old

#modify/add these settings

    
        
        
		
        
        
        
        
        
        
        
        
        
        
        
    

#reboot device
#don't access drive through '/storage'
#you must access it through '/mnt'
#example /mnt/media_rw/0000-0000


#Create Link in termux
ln -s /mnt/media_rw/0000-0000 $HOME/sdcard