How to install several kernels on Debian

[Oleg Goldshmidt]

Hi,

I am confused and I wonder if some Debian expert can calm me down. I
want to install several different kernel versions on a Debian
server. Off-topic: this is something that Red Hat do without being asked
(they keep several versions, usually 3), so it is something that seems
natural to me.

However, I cannot find any documentation anywhere on the 'net that tells
me how to get two or more kernel versions on the same Debian machine without
compiling. I just want to install 2 or more linux-image packages and
whatever else needs to be installed - and have them in grub, etc. The
only things I see are "don't install new kernels" and "you can upgrade"
and "download and compile".

# apt-cache search linux-image

shows 3.2.0, 4.2.0, and 2.6. I will be happy with the first two (though
I'd like something in between as well). 

However,

# apt-get install linux-image-4.2.0-1-amd64
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 linux-image-4.2.0-1-amd64 : Breaks: initramfs-tools (< 0.110~) but
 0.109.1 is to be installed
   Breaks: udev (< 208-8~) but 175-7.2 is to be installed
   E: Unable to correct problems, you have held broken packages.

does not add to my confidence. I want 2 kernels, 2 initial ramdisks,
etc., on the same machine and in the same grub without investing time to
compile. 

-- 
Oleg Goldshmidt | pub at goldshmidt.org