Kernel upgrade problem and question about "apt-get install kernel-image..."

[Adam Funk <a24061@yahoo.com>]

I'm running Debian testing on an Athlon 1100 box, and currently using
the kernel-image-2.4.23-1-386 package successfully.

I just upgraded with "apt-get install kernel-image-2.4.25-1-386" and
ended up with an unbootable system from that kernel: it got stuck doing
"hda: lost interrupt" messages (the same problem I had when I
ignorantly tried to run the 686 kernel on the Athlon 1100).  So my
first question is: shouldn't the 2.4.25 386 kernel run on this
processor?


Fortunately the backup kernel worked because the apt-get install rotated
the 2.4.23 kernel into the /vmlinuz.old and /initrd.img.old symlinks. 
I would now like to try the kernel-image-2.4.25-1-k7 package (which I
believe is the optimum kernel for my CPU) but I'm concerned about what
will happen during the rotation.  If I apt-get install a third kernel
package, will the first one (2.4.23) still remain in /boot?  If so,
should I just add a 3rd stanza to my /etc/lilo.conf for this kernel? 
The file currently looks like this:

boot=/dev/hda
prompt
timeout=100
root=/dev/hda1
install=/boot/boot.b
map=/boot/map
vga=0x317
default=Linux

image=/vmlinuz
        label=Linux
        initrd=/initrd.img
        append="devfs=mount hdd=ide-scsi"

image=/vmlinuz.old
        label=LinuxOLD
        initrd=/initrd.img.old
        append="devfs=mount hdd=ide-scsi"
        optional

So would I just add this:

image=/boot/vmlinuz-2.4.23-1-386
        label=Linux-2.4.23-1-386
        initrd=/boot/initrd.img-2.4.23-1-386
        append="devfs=mount hdd=ide-scsi"
        optional

to ensure that I've always got one good kernel?  I strongly suspect this
will work, but I'd appreciate some advice/encouragement so I don't get
stuck.

Thanks,
Adam