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[求助]请教关于grub4dos访问由dos下usb驱动加载的u盘的问题
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[求助]请教关于grub4dos访问由dos下usb驱动加载的u盘的问题
问题的引出：
单位淘汰了2个旧笔记本（dell inspiron 8200），硬盘被摘掉了，而且短时间内不想配新硬盘，想无盘玩。本来想用光驱运行PE的，结果发现它自带的内置光驱认不到了，2台一样的毛病,不知是不是摘掉了硬盘后阻抗匹配的问题。想用u盘引导，结果发现不支持usb启动。好在软驱还能用。目前的思路是，先用软驱启动，加载dos下的usb驱动后，再用grub4dos引导u盘上的pe或镜像。经过这两天反复查资料，做实验，目前进展如下：
现在我已经能用软盘引导到dos下，并用config中的device成功的加载了usb驱动，认到了U盘，盘符为D:，也能正常访问，但是运行grub4dos后，grub却认不到这个盘，我用(hd0,0)~(hd1,5)都试过了，不行。find命令我不太会用，但好像也不太行。
现在我的判断是：是不是grub只能访问物理驱动器，而像我这种情况，先引导了dos，在dos下加载了usb盘符，grub就无法访问。
请问我的判断对不？有什么解决办法吗？
Ask about the problem of grub4dos accessing the USB flash drive loaded by the USB driver under DOS
Introduction of the problem:
The unit has eliminated 2 old laptops (Dell Inspiron 8200), and the hard drives have been removed. And I don't want to configure a new hard drive in the short term, so I want to play without a disk. Originally, I wanted to use the optical drive to run PE, but found that the built-in optical drive it comes with cannot be recognized. Both 2 units have the same problem. I don't know if it is a problem of impedance matching after removing the hard drive. I want to boot with a USB flash drive, but found that USB boot is not supported. Fortunately, the floppy drive can still be used. The current idea is to first use the floppy drive to boot, load the USB driver under DOS, and then use grub4dos to boot the PE or image on the USB flash drive. After repeated checking of materials and experiments these two days, the current progress is as follows:
Now I can use the floppy disk to boot into DOS, and successfully load the USB driver with device in config, recognize the USB flash drive, the drive letter is D:, and can access it normally, but after running grub4dos, grub cannot recognize this disk. I have tried (hd0,0)~(hd1,5), no. I don't know how to use the find command very well, but it doesn't seem to work.
Now my judgment is: Is it that grub can only access physical drives, and in my case, after booting into DOS and loading the USB drive letter under DOS, grub cannot access it.
Is my judgment correct? What are the solutions?
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