QEMU Question:
Can you explain what is the use of the command qemu-img?
Answer:
Qemu as an emulator allow the user to enjoy the virtualization on their system without the need to install a OS separately. Qemu provides qemu-img command to create the hard disk. This command is used to create images of various formats like qcow (QEMU copy-on-write). This format allows the size of the disk image is different from the file that is physically present. It creates a compact image such that the size decreases and the image that gets produced is compressed to make it protable. For example: to create a disk image of 128 MB the following code will be written.
Qemu-img create -f qcow disk.img 128MB
Qemu-img create -f qcow disk.img 128MB
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