romimage: file=$BXSHARE/BIOS-bochs-latest
vgaromimage: file=$BXSHARE/VGABIOS-lgpl-latest
#boot: cdrom
#ata0-master: type=cdrom, path="boot.iso", status=inserted
boot:disk
ata0-master: type=disk, path="boot.iso", cylinders=306, heads=16, spt=17