Editing Qemu-img resize

* [[Extend LVM on qcow2 images]]

 qemu-img resize image_name.qcow2 +3G
 image resized.

 Verify: 
 
 [[qemu-img info]] image_name.qcow2
 image: image_name.qcow2
 file format: qcow2
 virtual size: 500G (536870912000 bytes)
 disk size: 246G
 cluster_size: 65536 
 Format specific information:
    compat: 1.1
    lazy refcounts: true
    refcount bits: 16
    corrupt: false

 qemu-img resize YOUR_VM_MACHINE_NAME.img -10G
 qemu-img: warning: Shrinking an image will delete all data beyond the shrunken image's end. Before performing such an operation, make sure there is no important data there.
 qemu-img: Use the --shrink option to perform a shrink operation

 qemu-img resize --shrink YOUR_VM_MACHINE_NAME.img -10G
 Image resized.


Process:
* <code>[[qemu-img resize]]</code> -> <code>[[virt-resize]]</code> -> <code>[[lvextend|lvextend --resizefs]]</code>


== Related commands ==
* <code>[[virt-resize]]</code>
* <code>[[virt-filesystems]]</code>
* <code>[[virsh blockresize]]</code>
* <code>[[virt-sparsify]]</code>

== Activities ==
* Read https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/sect-using_qemu_img-re_sizing_the_disk_image

== See also ==
* {{qemu-img}}


[[Category:QEMU]]