In this scenario, you have an IBM® iSeries™ model 620 server, you are running OS/400® V5R2, and you want to migrate your data to an IBM eServer™ i5 model 520.
You cannot install i5/OS® V5R4 on model 620. To migrate your data, you need to save the data and the operating system to a tape drive that is compatible with model 520 and then restore the data on the model 520.