Repeat this exact process when the installer requests Disk3.img . 6. Finalize and Remove Media
Running MS-DOS 6.22 in VirtualBox requires creating a dedicated VM with 32 MB of RAM, creating a virtual hard disk, and mounting floppy .img files to the virtual drive ms dos 622 img files works with virtual box top
Allocate of RAM. DOS requires less than 1 MB to boot, so 32 MB is more than enough. Choose Create a virtual hard disk now and click Create . Select VDI (VirtualBox Disk Image) and click Next . Choose Fixed size or Dynamically allocated . Repeat this exact process when the installer requests Disk3
Once the copying phase finishes, the setup program will tell you to remove all disks from the drives before rebooting. creating a virtual hard disk