This uses the older QCOW2 format version 0.10, which is supported by legacy QEMU and KVM releases.

qemu-img convert -O qcow2 -o cluster_size=2M source.qcow2 dest.qcow2

The primary tool for this operation is qemu-img , a command-line utility that comes with QEMU and is available on most Linux distributions.

Validate any repack before use

Run integrity checks:

Csr1000v-ucmk9.16.12.1b-serial.qcow2 Repack __link__ Jun 2026

This uses the older QCOW2 format version 0.10, which is supported by legacy QEMU and KVM releases.

qemu-img convert -O qcow2 -o cluster_size=2M source.qcow2 dest.qcow2 Csr1000v-ucmk9.16.12.1b-serial.qcow2 REPACK

The primary tool for this operation is qemu-img , a command-line utility that comes with QEMU and is available on most Linux distributions. This uses the older QCOW2 format version 0

Validate any repack before use

Run integrity checks: