[...]
> 
> [root@chrome ~]# apt-get upgrade-kernel
> E: Invalid operation upgrade-kernel

[...]

> I am not sure "apt-get update" should check the "40" data in the 
> "apt-get update" statement, 

NO, you shall have apt-sourceslist package for 41 first.

and the "apt-get upgrade-kernel" does not
> seem to work.

Install apt-scripts package from 41 (it was missing in 40).

Cheers

Jarek
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