Abstract: A method for automatically upgrading an operating system on a computer is provided. The method includes collecting system state information from the computer, and querying a knowledge base to identify state modification actions. Querying the knowledge base may include use of a classification algorithm, for example the k-nearest-neighbours algorithm, to identify non-exact matches in the knowledge base. The system is modified according to identified state modification actions and an upgrade is attempted. In the event that the upgrade fails, information from collected log files is used to update the knowledge base to propose further state modification actions, and the upgrade is attempted again.

Abstract: A method and system is disclosed for migrating an application on a source computer system, which may be a legacy application running on an out-of-date operating system, to a container host running on a target computer system. The system includes software products which analyse the source system to identify application components, and which provision containers corresponding to the identified components.

Abstract: A backup recovery and testing method is disclosed. The recovery method restores backed-up systems according to a stored configuration, and collects logs as the restored systems start up. The collected logs are compared with stored baseline logs, by a process which includes parsing the logs into templates and parameters, and identifying anomalies automatically for example by principal component analysis. Anomalies identified may be used to modify the stored configuration.