I have problems with lilo. When I start the computer, lilo doesnt how up..

This is my lilo.conf file:

# LILO configuration file
# generated by 'liloconfig'
#
# Start LILO global section
boot = /dev/hdb6
#compact # faster, but won't work on all systems.
prompt
timeout = 300
# VESA framebuffer console @ 1024x768x256
vga = 773
# Normal VGA console
# vga = normal
# VESA framebuffer console @ 1024x768x64k
# vga=791
# VESA framebuffer console @ 1024x768x32k
# vga=790
# VESA framebuffer console @ 1024x768x256
# vga=773
# VESA framebuffer console @ 800x600x64k
# vga=788
# VESA framebuffer console @ 800x600x32k
# vga=787
# VESA framebuffer console @ 800x600x256
# vga=771
# VESA framebuffer console @ 640x480x64k
# vga=785
# VESA framebuffer console @ 640x480x32k
# vga=784
# VESA framebuffer console @ 640x480x256
# vga=769
# ramdisk = 0 # paranoia setting
# End LILO global section
# DOS bootable partition config begins
other = /dev/hda1
label = Windows
table = /dev/hda
# DOS bootable partition config ends
# Linux bootable partition config begins
image = /boot/vmlinuz
root = /dev/hdb6
label = Linux
read-only # Non-UMSDOS filesystems should be mounted read-only for checking
# Linux bootable partition config ends

Whats wrong ?

try changing this

# Start LILO global section
boot = /dev/hdb6

to this

# Start LILO global section
boot = /dev/hdb

remember after any changes to lilo run

/sbin/lilo

good luck.