Run the reversion utility

After preparing to revert, run the reversion utility by using an onmode -b command.

Important: You must revert to the version of Informix® that was your source database before you migrated. If you revert to a different version of the server, you will corrupt data.

Informix Version 14.10 must be running when you run the reversion utility. If the reversion utility detects and lists any remaining features that are specific to Informix Version 14.10, you must remove those features before reversion can complete.

To see a list of all of the versions to which you can revert using an onmode -b command, type onmode -b.

To run the reversion utility, type 
onmode -b verson_number

For examples of the onmode -b command, see Syntax of the onmode -b command.

When you revert to the older version, Informix displays messages that tell you when reversion begins and ends.

When the reversion is complete, Informix is offline. The reversion utility drops the Informix Version 14.10 system catalog tables and restores compatibility so that you can access the data with the earlier version of the database server. The reversion utility does not revert changes made to the layout of the data that do not affect compatibility.