Difference between revisions of "Main Page/IT/Virtualisation"

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This will be provisoned "thinly" so the file will grow as data is written into it.
 
This will be provisoned "thinly" so the file will grow as data is written into it.
  
<pre>kvm-img create -f qcow2 mydisk.qcow2 8G</pre>
+
<pre>qemu-img create -f qcow2 mydisk.qcow2 8G</pre>
  
 
==Compress a qcow2 disk image==
 
==Compress a qcow2 disk image==

Revision as of 13:44, 10 March 2014

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.

qemu-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 an existing VM from the command line using virt-install

This will spin up a new VM given an existing disk image. One virtio disk and one virtio NIC on br100.

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

Start a fresh install of VM from command line

Creates a VM called windows8-test and starts an install of windows from an iso image.

virt-install --name windows8-test --hvm --ram 1024 --disk path=./windows8-test-disk1.qcow2,format=qcow2,bus=virtio  --network bridge=br100,model=virtio --vnc --os-type=windows --cdrom /mnt/vmimages/iso/Windows\ 8\ Retail\(MSDN\)Pro\ x64\ bit.ISO