Some QEMU Commands


  • Create an empty compressed 10 Go disk image (in qcow format):
    1.qemu-img create -f qcow /home/kevin/qemu-disk-image.qcow 10G
  • Boot on your machine’s CD-Rom in qemu with previous disk image as primary HDD:
    1.qemu -cdrom /dev/cdrom -hda /home/kevin/qemu-disk-image.qcow -boot d
  • Same as above but with a CD-Rom iso image:
    1.qemu -cdrom /home/kevin/ubuntu.iso -hda /home/kevin/qemu-disk-image.qcow -boot d
  • Boot the previously created disk image:
    1.qemu /home/kevin/qemu-disk-image.qcow
  • Convert qcow image to a raw image:
    1.qemu-img convert /home/kevin/qemu-disk-image.qcow -O raw /home/kevin/qemu-disk-image.raw
  • Mount a RAW disk image:
    1.mount -o loop,offset=32256 /home/kevin/qemu-disk-image.raw /mnt/qemu/
  • To run a x86_64 guest system on a 32-bit host, simply use qemu-system-x86_64 binary command instead of qemu.

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