To create databases for use on read-only media, perform these steps. Read-only databasescreating Create and populate the database on read-write media. Commit all transactions and shut down in the prescribed manner. If you do not shut down in the prescribed manner, will need to perform recovery the next time the system boots. cannot perform recovery on read-only media. Delete the tmp directory if one was created within your database directory. If you include this directory, will attempt to delete it and will return errors when attempting to boot a database on read-only media. For the read-only database, set the property derby.storage.tempDirectory to a writable location. needs to write to temporary files for large sorts required by such SQL statements as ORDER BY, UNION, DISTINCT, and GROUP BY. For more information about this property, see the .derby.storage.tempDirectory=c:/temp/mytemp Configure the database to send error messages to a writable file or to an output stream.For information on the derby.stream.error.file property, see the .derby.stream.error.file=c:/temp/mylog.LOG Be sure to set these properties so that they are deployed with the database.