SAP Migration from Win/Oracle to Linux/Oracle (oracle vm)

Hi,

The customer plans to migrate his SAP systems from (no more supported) Windows 2003 Server/Oracle to Oracle-Linux (on Linux VM):

                             OS                                           Database

Source:      Windows 2003 Server                         Oracle 10.2.0.4

Target:       Oracle Linux (with Linux VM)               Oracle 12

Could you please tell me your experiences with Oracle VM and Linux-Oracle? I don´t mean OS (Linux) and DB (Oracle) - I mean Linux which is delivered from Oracle.

Please also tell me what steps should be pre-checked before I create a Cut-over plan and what things should be especially checked regarding Oracle VM and so on?!

Thanks & Regards,
Manuel