Not connecting Zenwalk

Bonjour everybody,

I'v tried to install Zenwalk on a 2nd device ( sdb), so, here is how I did.
The laptop is a HP Pavilion dv7 with 2 hard drive ( Sda and Sdb)

Zenwalk is on Sdb, while Slack is on Sda.

First, to be sure not to make a mistake, I've get out my first device (sda), insert the new one at it's final place .
So, I quietly installed ZenWalk from a usb key. When I run it ; every thing was OK.

So I put back my first device in its slot, I modify the lilo of the Slackware to point in 2nd choice on sdb fhis way :
Quote:

# Linux bootable partition config begins image = /boot/vmlinuz root = /dev/sda1 label = Linux read-only # Linux bootable partition config ends image = /boot/vmlinuz root = /dev/sdb1 label = Zenwalk read-only # Zenwalk bootable partition config ends

But, unfortunatly, if I choose Zenwalk, I can't log in because my keyboard is off, neither the mouse, nothing ; I just can switch the power off of the laptop. and strangely, though inittab is set to run level = 3 ( without graphical login), that's what I've got*!!!???!!!

Here is the problem.