[ale] installing kernel with Aptitude...

[Courtney Thomas]

I am upgrading Debian and have just read:

    using Aptitude, you can install a kernel found 
    in the cache with:

        apt-cache search ^kernel-image

When I did the cache search, about 20 kernel
images came up !

Does this mean that, I can 'install' any of them  ?

If yes, are they fully installed so that the next time
I reboot they are booted up, or what  ?

What is the precise process by which this 
kernel installation is obtained, please  ?

Guidance in all this legerdemain appreciated  :-)

Courtney