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=615, heads=6, spt=17