If Mandrake use boot manager Grub, you can try to add "5" to the end of your kernel parameters
This is taken from my Fedora
Code:
title Fedora Core (2.6.10-1.760_FC3)
root (hd0,1)
kernel /boot/vmlinuz-2.6.10-1.760_FC3 ro root=LABEL=/ 5
initrd /boot/initrd-2.6.10-1.760_FC3.img