Run OS on Oracle VirtualBox

Create a VM with

1. chipset ICH9
2. Enable I/O APIC

VM storage setup

1. VM must have Controller Floppy for loading OS boot image fdImage.vfd
2. VM must have Controller IDE for root file system
   1. create legacy partition FAT32(partition type 0xb)
   2. format FAT32 file system
   3. FAT32 root folder must have a text file name ZT.COM, put in any text you want