Delay support in mkinitrd

Pat is rebuilding mkinitrd to support two official parameters in kernel configuration: rootdelay and rootfstype. These two parameters will help minimizing the log warning for unsupported features when booting the system, since the kernel will try to probe ext2 and ext3 before attempting to probe ext4 filesystem.

You can add this line into your /etc/lilo.conf to remove the warning during boot time: append = "rootfstype=ext4"