my laptop 40gb hd hda1 (win)
hda2 boot
hda3 swap
hda4 bt2

all mount

--------LILO------------------------
lba=32
boot = /dev/hda
prompt
timeout = 1200
reset
vga=791

#windows
other = /dev/hda1
label = windows
table = /dev/hda

#linux
image = /boot/vmlinuz
root = /dev/hda4
label = linux
read-write

but >lilo -v
fatal: /dev/hda read-only ..... why?