Repack - Csr1000v-ucmk9.16.12.1b-serial.qcow2

/dev/sda1: ext4 (boot) /dev/sda2: ext4 (rootfs) /dev/sda3: swap Using guestmount (libguestfs):

1. Overview Subject File: Csr1000v-ucmk9.16.12.1b-serial.qcow2 Target Action: Repack (Modify → Rebuild → Recompress) Original Purpose: Cisco Cloud Services Router 1000v (CSR1000v) QCOW2 disk image for KVM/QEMU, version 16.12.1b, Universal image with Strong Crypto (ucmk9), pre-provisioned with a serial-based license. Csr1000v-ucmk9.16.12.1b-serial.qcow2 REPACK

guestfish -a temp.qcow2 -i <<EOF write /etc/hostname "repacked-router" write /boot/license/license.lic "CISCO_LICENSE: ABC123XYZ" EOF Repacking may violate the End User License Agreement

sudo mkdir /mnt/csr_root sudo guestmount -a working.qcow2 -m /dev/sda2 /mnt/csr_root sudo guestmount -a working.qcow2 -m /dev/sda1 /mnt/csr_root/boot # separate boot Conclusion Repacking Csr1000v-ucmk9

qemu-img convert -f qcow2 -O qcow2 -c temp.qcow2 "$DST" rm temp.qcow2 echo "Repacked: $DST" Cisco images are proprietary. Repacking may violate the End User License Agreement (EULA) if used to bypass licensing or redistribute modified images. Authorized use cases include internal lab testing, training, and authorized engineering modifications with valid support contracts. 9. Conclusion Repacking Csr1000v-ucmk9.16.12.1b-serial.qcow2 is technically straightforward using standard Linux tools ( qemu-img , libguestfs ). The process enables customization, automation, and optimization of CSR1000v deployments. However, operators must respect licensing terms and verify boot integrity post-repack.

Csr1000v-REPACK.qcow2 – functional, customized, ready for deployment in non-production environments.