Converting images with qemu-img convert

Converting-qcow2-to-vmdk-and-vhdx.md

VM images

vGateway images extensions

• .qcow2 - KVM type Virtual Machines
• .vmdk - VMware and VirtualBox and ESXi
• .vdi - VirtualBox
• .vhdx - Microsoft Hyper-V
• .vhd - Azure requires fixed size

Example commands Convert qcow2 to other formats

Convert for VirtualBox (.vdi)

qemu-img convert -O vdi ubuntu.qcow2 ubuntu.vdi

Convert qcow2 to vmdk and make it VMware Workstation Player Compatible

qemu-img convert -f qcow2 -O vmdk ubuntu.qcow2 ubuntu.vmdk

Convert qcow2 to vmdk and make it ESXi Compatible (doesn't work with VMware Workstation Player)

qemu-img convert -f qcow2 -O vmdk -o subformat=streamOptimized ubuntu.qcow2 ubuntu.vmdk

Covert for ESXi 6 - Create a VMDK version 6 image (instead of version 4) (doesn't work with VMware Workstation Player)

qemu-img convert -f qcow2 -O vmdk -o adapter_type=lsilogic,subformat=streamOptimized,compat6 ubuntu.qcow2 ubuntu.vmdk

• https://linux.die.net/man/1/qemu-img

Convert qcow2 to Microsoft Hyper-V new vhdx format

qemu-img convert -f qcow2 -O vhdx -o subformat=dynamic ubuntu.qcow2 ubuntu.vhdx

For Azure (VHD images on Azure must have a virtual size aligned to 1 MB.)

• https://docs.microsoft.com/en-us/azure/virtual-machines/linux/create-upload-generic#resizing-vhds

# requires qemu 2.6+
qemu-img convert -o subformat=fixed,force_size -O vpc MyLinuxVM.qcow2 MyLinuxVM.vhd

Example convert.sh script

root@aws1-cm-01:~/temp# cat convert.sh

#!/bin/bash
echo "vGateway Name: "
read vgwname
echo "provide link:"
read link
curl $link > ${vgwname}.qcow2
echo "Converting..."
qemu-img convert \
 -f qcow2 \
 -O vmdk \
 -o subformat=streamOptimized \
 ${vgwname}.qcow2 ${vgwname}.vmdk