hd0,0 refers to the hard disk 0 and 0 partition
hd0,1 refer to the hard disk 0 and partition 1
hd1,0 refers to the hard disk 1 and partition 0
If You Enter the Wrong Partition in the booting gurb.conf file
You will get the following Error message.
Error 22: No such partition
press any key to continue
if you face the above error message.
you need to confirm in which partition your root file system is located
is it hd0,0 hd0,1 hd0,2
I change the partition from root (hd0,4) to (hd0,0)
then the problem has been
Error 22: No such partition . Hard Disk Different Partition. boot grub.conf file