[Dev] Chain loading with GRUB on YeeLoong

[Stayvoid]

> there's no grub yet because we got the same functionality from pmon
> and it's even quicker.

It has a similar functionality but not the same. IIRC PMON only
supports ext2 and ext3.

Can PMON handle encrypted partitions?

I've been told that GRUB can do the following:

linux   /vmlinuz-linux root=/dev/mapper/root ro cryptdevice=/dev/sda3:root quiet
initrd  /initramfs-linux.img

Thanks