grub4dos 启动ubuntu 12.04

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timeout 30
default 0
title YJHY
#kernel (hd0,0)/yjhy/grub/memdisk c=100 h=4 s=36 floppy
#initrd (hd0,0)/yjhy/dos.img
clear
map --mem /yjhy/dos.img (fd0)
map --hook
chainloader (fd0)+1
rootnoverify (fd0)
 
title Boot NT/2000/XP/2003
find --set-root /ntldr
chainloader /ntldr

title Ubuntu 12.04(2)
root (hd0,1)
kernel /boot/vmlinuz-3.2.0-23-generic-pae root=UUID=2c10b88a-804f-4a2b-b920-ea4d339d9161 ro quiet
initrd /boot/initrd.img-3.2.0-23-generic-pae
boot
     
title Ubuntu 12.04(4)
root (hd0,3)
kernel /boot/vmlinuz-3.2.0-23-generic-pae root=UUID=2c10b88a-804f-4a2b-b920-ea4d339d9161 ro quiet
initrd /boot/initrd.img-3.2.0-23-generic-pae
boot