Difference between revisions of "Qemu-img resize"
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* [[Extend LVM on qcow2 images]] | * [[Extend LVM on qcow2 images]] | ||
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image resized. | image resized. | ||
| − | Verify: | + | 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 | ||
| + | |||
| + | |||
| + | == Shrink == | ||
| + | Your new image cannot be bootable. Make sure you understand implications. | ||
| + | |||
| + | 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: | Process: | ||
| − | * <code>qemu-img resize</code> -> <code>[[virt-resize]]</code> -> <code>[[lvextend|lvextend --resizefs]]</code> | + | * <code>[[qemu-img resize]]</code> -> <code>[[virt-resize]]</code> -> <code>[[lvextend|lvextend --resizefs]]</code> |
| Line 18: | Line 38: | ||
* <code>[[virt-filesystems]]</code> | * <code>[[virt-filesystems]]</code> | ||
* <code>[[virsh blockresize]]</code> | * <code>[[virsh blockresize]]</code> | ||
| + | * <code>[[virt-sparsify]]</code> | ||
== Activities == | == Activities == | ||
Latest revision as of 13:27, 11 April 2021
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
Contents
Shrink[edit]
Your new image cannot be bootable. Make sure you understand implications.
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:
Related commands[edit]
Activities[edit]
See also[edit]
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