Difference between revisions of "Qemu-img create"
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| − | * <code>qemu-img create -f [[qcow2]] MY_IMAGE_NAME. | + | * <code>qemu-img create -f [[qcow2]] MY_IMAGE_NAME.qcow2 10G</code> |
* <code>qemu-img create -f raw MY_IMAGE_NAME.img</code> | * <code>qemu-img create -f raw MY_IMAGE_NAME.img</code> | ||
* <code>qemu-img create -f qcow2 -o preallocation=metadata,compat=1.1,lazy_refcounts=on MY_IMAGE_NAME.img</code> | * <code>qemu-img create -f qcow2 -o preallocation=metadata,compat=1.1,lazy_refcounts=on MY_IMAGE_NAME.img</code> | ||
Revision as of 13:17, 5 February 2020
qemu-img create -f qcow2 MY_IMAGE_NAME.qcow2 10Gqemu-img create -f raw MY_IMAGE_NAME.imgqemu-img create -f qcow2 -o preallocation=metadata,compat=1.1,lazy_refcounts=on MY_IMAGE_NAME.img
lazy_refcounts=onReference count updates are postponed with the goal of avoiding metadata I/O and improving performance. Particularly interesting with cache=writethrough.
qemu-img create -f qcow2 MY_IMAGE_NAME.img 10G
qemu-img create -f qcow2 MY_IMAGE_NAME.img qemu-img: MY_IMAGE_NAME.img: Image creation needs a size parameter
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