http://www.edseek.com/archives/2004/03/22/creating-an-initrd-image-on-debian-gnulinux/
# /etc/mkinitrd/modules: Kernel modules to load for initrd.
mkinitrd -k -o /boot/initrd.img -r /dev/sda1
Linux/Kernel/MakeInitrd (last modified 2008-11-04 07:00:05)