While "repacks" are invaluable for learning, they carry risks. Using unofficial images in a production environment is a violation of Cisco’s End User License Agreement (EULA). Furthermore, downloading software from unverified sources poses a security threat, as the "repacker" could theoretically inject vulnerabilities or backdoors into the image. Conclusion
Boot the new image in QEMU/KVM (no Cisco VIRL/ESXi needed): Csr1000v-ucmk9.16.12.1b-serial.qcow2 REPACK
: This is the file format of the software image. QEMU Copy On Write (qemu-img) format is commonly used for virtual disk images, especially in environments like QEMU, KVM, and OpenStack. Developing a Feature for the Cisco CSR1000V While