China DOS Union

Recently, the younger brother wants to make a Ghost recovery CD - ROM by himself, but is limited by the fact that the ThinkPad has no optical drive, so he can only use a USB optical drive for installation. He extracted some IMG files from many systems downloaded from the Internet, and the test in the virtual machine is completely normal, and it is also normal when used on the T400 computer with an optical drive, but on the X200 using the USB optical drive, it always fails to automatically enter Ghost. Even if Ghost is run manually, the optical drive cannot be found.

Yesterday, I got a CD - ROM at the computer store. Although it cannot automatically Ghost, after he runs Ghost manually, he can recognize the USB optical drive and install the system. I extracted his IMG file and used it myself, but when testing in the virtual machine, the following error always occurs:

CDR103: CDROM not High Sierra or ISO - 9660 format reading drive Z
Abort, Retry, Fail?

After pressing "F", it can be used the same as the original CD - ROM. If other commands, such as Ghost, are added inside, several commands will cause this error several times. What is the problem here? How to solve it?
Note: The same test of the original CD - ROM image on this virtual machine will not have this problem.

Attached: The following are the contents of Config.sys and Autoexec.bat in the IMG file (unchanged)

Config.sys
DOS=HIGH,UMB
buffers=99
device =a:\himem.sys /testmem:off
devicehigh=a:\cdrom\ifshlp.sys
device =a:\cdrom\va16365.sys /ne
devicehigh=a:\cdrom\va16cd.sys /D:MSCD001
devicehigh=a:\cdrom\cdrom.sys /D:MSCD002
devicehigh=a:\cdrom\ansi.sys

Autoexec.bat
@ECHO OFF
A:\MSCDEX.EXE /D:MSCD001 /D:MSCD002 /V /L:z
path=a:\;a:\cdrom;
SET CDL=z
z:\

So sad, I posted the most obscure thread, and no one replied to me

Heheh, it's not that no one is replying, it should be that there's no way to reply.
I've been looking for a long time. From the information provided, no problem has been found.
You said that there's no problem with using the original image, but I can't see your image. What else can I do?
Try using the image extracted by grub boot on your ThinkPad hard drive to see if the problem mentioned occurs?

After research, this problem was solved not perfectly.
Directly use this file as the boot file and import it into the CD to make a bootable CD, then the above error will not occur, but so far, I haven't figured out why.

The purpose I want to achieve is: use EasyBoot to make a multi-boot CD, and the above IMG file is just a boot file used by one of the options. The problem is that if the same boot file is put into EasyBoot and started in the option mode, the above error will occur.

If there are any experts who understand, please give some pointers

Is there a compatibility issue between easyboot and the USB drive boot of your ThinkPad?

You make a disk with easyboot, then plug the USB drive into another computer and try booting. If it works normally on another computer, then it's an issue with easyboot.

I haven't passed the test on the virtual machine yet, I can't burn it to a disc, what a waste of CDs