virsh-storage.md

storage

• convert qcow2 to vdi
• create qcow2 disk
• resize disk
• remove reserved partition
• rsync qemu img

---

convert qcow2 to vdi

qemu-img convert -f qcow2 input.img -O raw tmp.img
VBoxManage convertfromraw --format VDI tmp.img out.vdi

create qcow2 disk

qemu-img create -f qcow2 myimg

resize disk

qemu-img resize disk.qcow2 +40G

if guest doesn't show physical disk with new size try follows

virsh start domainname
virsh blockresize domainname path-to-image newsizeG

• reboot virtual machine

remove reserved partition

to remove reserved partition on windows system to allow disk expand there is the need to use diskpart, eg

list disk
select disk 0 <--- check your own
list partition
select partition 3 <--- check your own
delete partition override

rsync qemu img

• use --sparse --inplace -z options to save bandwidth when transferring qemu virtual images that have smaller effective disk image size ( see qemu-img info file.qcow2 to show virtual and disk size of the image )