Recovering from a Failed Upgrade

If the upgrade process fails, the installation program displays error messages. Review the error messages and the Adaptive Server error log to determine the cause of the upgrade failure.

For default error log locations, see Error log locations for installation utilities.

Note:

Once you start Adaptive Server on the new version you cannot start Adaptive Server on the earlier version. Attempts to do so result in having to restore from backups.

Restoring from Backup
You may need to restore your databases due to a failed upgrade.
If the Cause of the Failure Is Unknown
If the upgrade process fails again, and you cannot determine the cause of failure look here for the location of the error log file.
Re-running the Upgrade
Failures while upgrading a server installation fall into one of two categories: failure to upgrade an individual database, or failure to complete configuration changes after all databases have been upgraded.
If the Cause of the Failure Is Known
If the error logs or messages clearly indicate the cause of failure, and you do not believe your databases were damaged, you can attempt to fix the problem and re-run the upgrade immediately.

Parent topic: Solutions to Common Installation Problems