How to change database default location in sql server running in linux VM

### Default Locations 
 https://www.mssqlonlinux.com/post/change-default-folder-for-data-and-log-in-sql-server-on-linux  

sudo chown mssql /sqlserver

# backup  data  log

sudo /opt/mssql/bin/mssql-conf set filelocation.defaultdatadir /sqlserver/data

sudo /opt/mssql/bin/mssql-conf set filelocation.defaultlogdir /sqlserver/log

systemctl restart mssql-server.service 

SQL Server needs to be restarted in order to apply this setting. Please run
'systemctl restart mssql-server.service'.

Msg 5123, Level 16, State 1, Line 1
CREATE FILE encountered operating system error 5(Access is denied.) while attempting to open or create the physical file '/sqlserver/data/ETLStage.mdf'.
Msg 1802, Level 16, State 4, Line 1
CREATE DATABASE failed. Some file names listed could not be created. Check related errors