Claudio Tellez wrote:
> Please,
> 
> I tried to upgrade to 4.1 using the apt-get. I ran the apt-get update 
> and the apt-get dist-upgrade with no problems. But when I ran apt-get 
> upgrade-kernel, I received the following message:
> 
> E: Invalid operation upgrade-kernel

You are missing the apt-scripts package (which was not included
in SL40 by mistake).

Just do:

apt-get update && apt-get install apt-scripts && apt-get upgrade-kernel

Cheers

Jarek

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