Any program that works on MS-DOS should also run on FreeDOS. In this text, 'target' means the system being emulated, and 'host' means the system where QEMU is running. Let’s try it with an example: installing a copy of the FreeDOS operating system. FreeDOS is an open source DOS-compatible operating system that you can use to run legacy business software and other DOS applications. Login Attachments QemuUserEmulation QEMU User Emulation This page describes how to setup and use QEMU user emulation in a 'transparent' fashion, allowing execution of non-native target executables just like native ones (i.e./program ). Now that we have the essentials to start a virtual machine with QEMU, we can put it all together on a single command line to create and boot your virtual machine! For example, set -boot order=dc to tell QEMU to try the CDROM ( d ) first, then the hard drive ( c ). Use -boot to specify the order that QEMU should look for bootable devices. You can also append a suffix of M or G to specify the memory in MB or GB. If you do not explicitly set this, QEMU defaults to 128 MB. Set the amount of memory in the virtual machine with the -m size option. For example, this might be the bootable ISO image to install Linux, Windows, or another operating system. Set -cdrom isofile to define the CD-ROM or DVD image file. This should be the same virtual disk you defined with the qemu-img command. Use -hda imagefile to tell QEMU to use imagefile as the hard drive image.
To emulate a more modern system, use qemu-system-x86_64. To emulate a legacy PC system, use qemu-system-i386.
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