After installation completes, reboot your VM. Remove the floppy image from the drive to ensure it boots from the hard disk.

ms dos 622 img files works with virtual box top, MS-DOS 6.22 VirtualBox, boot from IMG, convert IMG to VDI, DOS emulation, retro computing.

Ensure DISK1.IMG is loaded in the floppy drive. Verify by checking the VM status bar – you should see a floppy icon with the file name.

Not all IMG files are bootable. A bootable DOS floppy must have a valid in sector 0. Verify by opening the IMG with a hex editor (e.g., HxD). The first three bytes should be EB 3C 90 (x86 jump instruction). If not, the IMG is a data disk, not a system disk.

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For even tighter VirtualBox integration, consider the VBADOS driver, which offers mouse cursor integration without requiring capture.

If you have original floppies and a USB floppy drive, you can create perfect .img files on Windows using: