Difference between revisions of "Main Page/IT/Virtualisation"
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<pre>kvm-img create -f qcow2 mydisk.qcow2 8G</pre> | <pre>kvm-img create -f qcow2 mydisk.qcow2 8G</pre> | ||
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+ | ==Compress a qcow2 disk image== | ||
+ | <pre>kvm-img convert -c -f qcow2 -O qcow2 -o cluster_size=2M myold_disk.qcow2 mynew_disk.qcow2</pre> | ||
==Install a VM from the command line using virt-install== | ==Install a VM from the command line using virt-install== |
Revision as of 16:14, 26 February 2014
Contents
KVM
Stuff relevant to qemu-kvm
Create a qcow2 disk image
This will be provisoned "thinly" so the file will grow as data is written into it.
kvm-img create -f qcow2 mydisk.qcow2 8G
Compress a qcow2 disk image
kvm-img convert -c -f qcow2 -O qcow2 -o cluster_size=2M myold_disk.qcow2 mynew_disk.qcow2
Install a VM from the command line using virt-install
This will spin up a new VM given an existing disk image.
virt-install --name <<Your machine name>> --hvm --ram 512 --disk path=<<path to your existing OS image>>,format=qcow2,bus=virtio --import --network bridge=br100,model=virtio --vnc --os-type=linux --os-variant=debianwheezy