China DOS Union

I copied the XP installation files to a small hard drive. This hard drive has GRUB installed. In the future, when I need to install the system, I just hang it in the position of the optical drive and then use it to boot and install the system. I wonder if it is feasible. What command should I use? Thank you all in advance.

Everyone must help me! ; )

I took a look at the GRUB commands, and there's a RUN command in there. I'm not sure if that's it. The key thing is I don't have the conditions to test here. When I get to the class, there are conditions but no time.

Which version of GRUB are you using? You didn't make it clear, how can I help you!

If you are using the Chinese version of GRUB 0.95, you can directly use RUN

If you are using GRUB4DOS 0.42, you can use CHAINLOADER

I'm sorry, the environment wasn't clearly written. It's for version 0.4.2. If you don't click the given one. Also, when booting the system of the second hard drive, it prompts that NTLDR is missing and can't start. Using the parameter FIND--IGNORE-FLOPPIER can find the hard drive where NTLDR is located, that is, it lists (HD0,0) (HD1,0). What should be done next?

I can now test, please tell me how to combine ROOT ROOTNOVERIFY MAKEACTIVE CHAINLOADER to boot my second system

And also, there is an NTLDR file on both of my hard drives. GRUB calls it, and all partitions are FAT32.

My operation steps are: boot to the GRUB command line mode using the 2nd hard disk (no system but with GRUB), then ROOTNOVERIFY (HD1,0), MAKEACTIVE, CHAINLOADER +1, BOOT. Then it prompts NTLDR IS MISSING and freezes. The FIND --IGNORE-FLOPPIES command can search that both hard disks have NTLDR.

Booting with ROOTNOVERIFY (HD1,0) CHAINLOADER /NTLDR BOOT is booting the second hard drive. Those who know the reason, please give pointers.

find --set-root (hd1,0)/setupldr.bin
savedefault --wait=2
chainloader +1

Thanks for the guidance. There's a new problem again. Please help. It's about the issue of the boot system crashing above.

It is suggested that you lurk and learn the basic usage of GRUB!

Hehe
That does need to be learned. But I work during the day, and there may be things at night, so I rarely have time. Some places are also not well understood. I still need to ask you about the parts I don't understand.

This is a classic problem. Microsoft's system doesn't support placing it on (hd1), only on (hd0).

You need to first have

map (hd0) (hd1)
map (hd1) (hd0)

These two commands to swap the disks, and then it may succeed. There was a discussion before, and many people know the solution to this problem, so I won't say more about what to do next.

Thanks for the follow and guidance, I'll go tinker around.

It's almost New Year, and there'll be no internet when I go home for the holiday. So I wish you a happy New Year in advance! Good health!