On the right panel, click the floppy icon again and select .
| Problem | Solution | |--------|----------| | VM won’t boot from floppy | Check boot order in System settings → Floppy first | | “Non-system disk” error | Format C: or run SYS C: later | | Setup says “insert disk 2” | Swap the .img via Devices → Floppy → Choose disk image | | Hard disk > 512 MB | Use smaller virtual disk; large disks cause FDISK problems | | .img file not accepted | Rename to .IMA or use VBoxManage convertfromraw |
For retro developers who need cycle-exact behavior without buying vintage hardware, this combination is the solution.
Right-click the newly created Floppy Controller and select . Click Choose Disk in the prompt window.
Set the : Set this to 200 MB . MS-DOS 6.22 cannot natively handle partitions larger than 2 GB due to FAT16 limitations, so a small disk is safest. Step 2: Configure VM Storage and System Settings
