Migration from a B2100 blade to a B2250 blade

I'm reading through the F5 document VIPRION Systems: Blade Migration and under the section for Migrating the Configuration on B2000 Series Blades, using the chassisConfigUpgrade.pm script, it says "Important: If you are upgrading to B2250 blades, you must reassign the new interfaces to the appropriate VLANs". How is the interface reassignment done? Is it part of the script where I would be prompted to reassign the interfaces? Or do I have to do the interface reassignments before running the script?

 

Also, what would be the new interface designation for B2250 blades? Because currently, for B2100, the interfaces are indicated as 1/1.1, 1/1.2... 2/1.1, 2/1.2... etc.

 

Under Migrating vCMP Virtual Disks to B2000 Series Blades, it is recommended to use the chassisVdiskMigrate.pm script. However, our guests are configured in such a way that each of the guests use 2 slots. So my question is how will the script migrate the current setup where each guest occupies 2 slots, into just 1 single B2250 blade?