I followed your method, after converting the following DOS into ISO image files, I made all of them into bootable disks. When I used UltraISO to write to the USB flash drive, they could all boot normally. But when I entered the USB flash drive drive letter, that is, entered
F: (
F: is the USB flash drive drive letter)
A:\>F:
After pressing
Enter, it jumped back to
A:\>_
Access is denied. I don't know what's going on? These DOS boot disk instructions all say they support USB flash drives, and I specially found them, but none can enter the USB flash drive. Relying solely on the motherboard BIOS support may not be enough.
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DOS Boot Disk (Recognize Flash Memory) 3.0 Chinese Version
USB30.IMG
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DOS Boot Disk (Support USB Devices)
USB.IMG
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http://www.cn-dos.net/forum/viewthread.php?tid=19426&fpage=1
Super Boot Disk GrubDisk 20060308
grubdisk.IMG
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http://www.cn-dos.net/forum/viewthread.php?tid=17237&fpage=1
Super Chinese MS-DOS7.10 Boot Disk
Dos.img
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http://www.cn-dos.net/forum/viewthread.php?tid=10150&fpage=1
The Strongest Super Boot Multi-system Maintenance Disk in the World (SBMSR400)
SBMSR320.IMA
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Last edited by 5q8 on 2010-1-19 at 23:11 ]