How to boot grub after Ubuntu7.10 is installed on a mobile hard disk

I installed Ubuntu7.10 on a mobile hard disk, but the MBR was written on a computer's hard disk instead of a Ubuntu mobile hard disk. In this way, only the computer used for installation can enter the system on the mobile hard disk. Change to the system above boot through a mobile hard disk. The method is as follows: Enter grub on the terminal to enter the interactive interface. Enter root (hd0, 0) Here hd0 is the mobile hard drive with Ubuntu installed (note, not necessarily all are hd0, it may be hd1 or others, I will power it here

I installed Ubuntu7.10 on a mobile hard disk, but the MBR was written on a computer's hard disk instead of a Ubuntu mobile hard disk. In this way, only the computer used for installation can enter the system on the mobile hard disk.

Change to the system above boot through a mobile hard disk. The method is as follows:

Enter grub on the terminal to enter the interactive interface.

Enter root (hd0, 0)

Hd0 is the mobile hard drive with Ubuntu installed here (note, not necessarily all are hd0, it may be hd1 or another, and hd1 is the hard drive on my computer ). Hd0, 0 is the partition where/boot is located.

Then setup (hd0) writes GRUB's first stage into MBR.

Then reboot is ready.