Qemu-img: Difference between revisions
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Revision as of 17:32, 4 July 2017
External
Internal
Overview
qemu-img is a command-line tool used to create, format, convert, modify and verify virtual machine images offline. It can handle all image formats supported by QEMU.
qemu-img must not be used to modify images in use by a running virtual machine or any other process - this may destroy the image. If an image is queried while it is modified by another process may result in an inconsistent state.
Sub-Commands
info
qemu info <filename>
qemu-img info /main-storage-pool/testvm-01.img
image: /main-storage-pool/testvm-01.img
file format: qcow2
virtual size: 4.0G (4294967296 bytes)
disk size: 1.3G
cluster_size: 65536
Format specific information:
compat: 1.1
lazy refcounts: true
check
Performs a consistency check of the virtual machine image file, if the format is "qcow2", "qed" or "vdi". The command output can be in either "human" or "json" format.
qemu-img check <filename>