Installation and Update Guide > Version updates (large updates) > A different main directory than the old installation

•If you are updating an existing local installation on the same computer as where the old installation has been used, using this method is NOT the best way. The preferred method in such cases is described in the topic named The same main directory as the old installation. However, if the new installation is made on a different computer than the old installation, this may in some cases be a better way. In most cases, it is however not. The way that is best in most cases is described in a topic named Moving a local cadett ELSA from one computer to another.

•If you are updating an existing network installation of cadett ELSA using the same server as before, this is normally NOT the best way to do it. The preferred method in such cases is described in the topic named The same main directory as the old installation. However, if the new installation is made on a different server than the old installation, this may in some rare cases be a better way. The best way in most cases is described in a topic named Moving a network installation of cadett ELSA from one server to another.

To use a different directory name for the new installation than was used for the old installation, perhaps even on another computer or server, is fully possible but it is more complicated and time consuming, especially for workstations in network installations:

•When using the same directory name as for the old installation, the workstations are automatically updated.

•When using a different directory name, the workstations must all be reinstalled.

In these situations you make a new installation of the new software as described in the Local installation topic for local installations, and the Server installation topic for network installations. You will then make sure that you have access to the old installation or to a copy of it.

Finally you manually start the import from the old cadett ELSA, as described in the topic named Import from other cadett ELSA and import the user data from the old installation.

The import itself is performed as described in the Import from other cadett ELSA topic.

The preferred update method is described in the next topic, which is listed below.

•The same main directory as the old installation