China DOS Union

I want the boot disk to directly boot to the drive letter of the optical drive and automatically run a bat file, that is, the virtual drive letter is CDROM

[ Last edited by willsort on 2005-10-27 at 14:13 ]

You can check the autoexec.bat file in the WIN98 boot disk, and you can achieve it by using the CDROM environment variable inside it.

But I don't know how to modify the environment variables of CDROM. Can you give me some pointers?

No need to modify the CDROM variable. If you boot with a WIN98 boot disk, the CDROM variable should be the drive letter of the CDROM, and you can just reference it in the batch file. For example, if you want to run A.EXE in the BIN folder on the CD, you can use %CDROM%:\BIN\A.EXE in the batch file.

It should be noted that CDROM must be in uppercase, not lowercase, otherwise the reference will not be correct.

Correctly, the above should be: %CDROM%:\BIN\A.EXE

If it is not the MS-DOS 7.10 boot disk that comes with Win98, you can use tools like FINDCD to find the current CD-ROM drive letter.

I don't know which line to add for %CDROM%\*. I want to make a ghost recovery disk.

I can only get to this point:

Create g.bat
Content:
@echo off
cd h: h is my CD - ROM
ghost.exe -clone,mode=pload,src=98.GHO:1,dst=1:1 -sure -rb

Add in the 98 boot disk autoexec.bat:
copy g.bat %RAMD%:\ > NUL
Copy g.bat to the floppy disk and make an image for burning.
Boot from the burned CD - ROM to virtual A:\g and press Enter. It succeeds.

Hehe~~ The simple - minded person can only use the simple method.

Thank you two moderators ：）

cd h:
Change to cd %CDROM%
That's it.
As for copy a:\g.bat %RAMD%:\ >NUL, it's redundant.
Because you finally execute g.bat in the virtual A drive, not in your virtual hard disk.