Verify that the computer on which you plan to upgrade the Sybase products meets the requirements.
Determine whether the version of your server is upgradeable to the Cluster Edition.
Verify that you unloaded Adaptive Server in a different directory than your previous Adaptive Server installation.
If you overwrote your previous server installation:
Restore it from your most recent backup.
Reinstall the product files for Adaptive Server in a different directory.
Continue with the upgrade.
Verify that your operating system is at the proper version level and has all operating system patches needed for the Cluster Edition.
