Testing With QEMU
From RockWiki
Testing bootable floppies and CD/DVD ISO images with qemu is really easy.
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Setup Virtual Hard Disks
If you want to use virtual hard disks in QEMU, create them with e.g.:
qemu-img create qemu-hda.img <size>
Where <size> can be given in Kilo-(<size>K), Mega-(<size>M) or Giga-Bytes(<size>G).
Booting ISO Images
To boot an ISO image with e.g. one available hard disk, type:
qemu -cdrom ROCK-CD.iso -hda qemu-hda.img -boot d
Booting Floppy Images
To boot floppy images use:
qemu -cdrom ROCK-CD.iso -hda qemu-hda.img -floppy floppy.img -boot a
To "change" floppies, overwrite floppy.img with the image of the next floppy.
Booting Cross-Builds
QEMU can emulate many more architectures than x86, use qemu-<arch> or qemu-system-<arch> instead of qemu.
Support is incomplete for some architectures in QEMU, read https://fabrice.bellard.free.fr/qemu/ for details.
