Qemu img resize for windows 10#
Qemu img resize windows 10#

Once the size of the VM disk image of windows 10 is done in the KVM above, it’s pretty easy to expand the storage under windows, we are basically going to use the Windows Disk manager utility for this purpose. Once you enter the command you could see that the image size got increased. So 40GB+60GB=100GB in images]# qemu-img resize win10.qcow2 +60G I had given 40GB of storage during the VM installation, now I am going to expand to 60GB, to do that enter the command below.Goto the image location /var/lib/libvirt/images.To increase the KVM disk size qcow2 for windows, follow the below. Note: in case of any issue you can remove the existing image and edit the windows XML file with the command virsh edit win10 and replace the image with the backup image and start the windows. This may be needed to ensure the stability of the VM. Once you have the backup ready you can go ahead with the next steps. Then resize the raw file qemu-img resize guest.raw 3G Then convert it back to qcow2 qemu-img convert -O qcow2 guest.raw guest.img At this point you can resize the qcow2 virtual image size to add some space and this will not affect image file size. Verify disk image has images]# ls -l win-backup/ -h.Copy the win10 image to the new images]# cp win10.qcow2 win-backup/ Check the original image size and resize it with command truncate’: truncate -s +2G raspbian.img.I am creating a new folder called win-backup. To take a backup, you can copy the same disk image to a new folder. Backup the storage.īefore we make changes it is better to have a backup, just in case if anything goes wrong. rw- 1 libvirt-qemu kvm 40G Aug 30 12:31 Step 2. Sdb goto the image location and type ls -l cd sudo ls -l -h You may type the command virsh domblklist win10, you should be able to see the virtual harddisk storage here. In the same window, you could also see the windows 10 storage size is at 40GB Using CLI In Virt manager click on properties of the windows 10 VM and click on VirtIO Disk 1, Here you can see the storage location of windows 10 Supported formats: raw cow qcow vdi vmdk cloop dmg bochs vpc vvfat qcow2 qed parallels nbd blkdebug hostcdrom hostfloppy hostdevice file qemu-img resize qcow2file1.img 10G qemu-img: This image format does not support resize qemu-img resize qcow2file1. Shut down the windows machine in KVM and locate the Windows 10 disk image. You can find the KVM qemu disk image either using GUI or the CLI. We are going to increase the VM’s virtual hard disk storage using KVM resize disk, before you perform that, first you need to find the KVM disk image.

Qemu img resize for windows 10#

Though we are doing it for windows 10 the steps are pretty much the same for other versions of windows as well, such as windows 7, 11, server, and so on. In this Windows KVM disk partitioning guide let’s go ahead and extend the storage for windows 10 VM guests in KVM. How do I increase the size of a qemu image? In this mode, only the backing file name and format of filename is changed without any checks on the file contents. qemu-img uses the unsafe mode if '-u' is specified. It is guessed automatically in most cases. How do I increase the size of a qemu image? resize filename + -size Command parameters: filename is a disk image filename fmt.