https://www.youtube.com/watch?v=Ml_z4YUgsBw&list=PLFuOESqSTxEvZChqWgAJanctohRMe99CR&index=6
And I'm guessing you have not reviewed the documentation on how to upgrade, because the documentation DOES cover what you're asking.
How to install the RSA version 3 keys, how to modify the specs of the VM and related COPs are covered in the documentation.
ciscocm.bashupgrade.cop.sgn has a README that covers all you need to know about it.
You need to read
A) Upgrade guide
B) Release notes
I suggest you read the documentation, and then, you come back with questions.
I'm not exactly sure of what you mean in #4
HTH
java
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