Testing: install new amd64 kernel in parallel

[Felix Natter <fnatter@gmx.net>]

hi,

my USB is broken on current Testing (it worked a few days ago) and I
suspect it's due to a kernel update:

$ uname -a
Linux bitburger 3.10-2-amd64 #1 SMP Debian 3.10.7-1 (2013-08-17) x86_64 GNU/Linux

Now I can see that a new "3.11+54" would come in with a "apt-get upgrade"
(http://packages.debian.org/search?keywords=linux-image-amd64&searchon=names&suite=testing&section=all).

But I suspect that this upgrade will overwrite my previous (3.10) kernel
(like it did previously) ---> how can I tell apt to install the 3.11
kernel in parallel so that I can go back to to 3.10 at the grub prompt?

Is it enough to install "linux-image-3.11-2-amd64" manually and then do
the "apt-get upgrade"?

Thanks (and Merry Christmas to all who celebrate this)!!
-- 
Felix Natter