homelab/infrastructure/graduated/qemu/README.md

QEMU

• QEMU
  • QCOW2
    • Restore qcow snapshots
    • Convert qcow to bootable drive
    • Convert bootable drive to qcow

QCOW2

Restore qcow snapshots

# Create a snapshot
qemu-img snapshot -c snapshot-name /var/lib/libvirt/images/vm-image.qcow2

# List snapshots for a given image
qemu-img snapshot -l /var/lib/libvirt/images/vm-image.qcow2

# Restore snapshot
qemu-img snapshot -a snapshot-name /var/lib/libvirt/images/vm-image.qcow2

Convert qcow to bootable drive

qemu-img convert -f qcow2 -O raw /var/lib/libvirt/images/vm-image.qcow2 /dev/sdb

Convert bootable drive to qcow

qemu-img convert -f raw -O qcow2 /dev/sdd /var/lib/libvirt/images/toshiba.qcow2 conv=noerror -p

If you need to resize a windows partition to non-continuous space simply grow the last partition, shrink it to the end of the drive, then grow the windows partition with gparted.