For network engineers, DevOps professionals, and students pursuing Cisco (CCNA/CCIE), Juniper, or F5 certifications, has become the gold standard for lab emulation. However, a lab is only as good as its images. Without the correct firmware, your virtual routers and firewalls are just empty shells.
Always refer to the official EVE-NG documentation for the exact required filename of the specific vendor image you are uploading. Step 3: Fix Permissions (Critical Step)
mv /tmp/iosv-universalk9-15.9.qcow2 /opt/unetlab/addons/qemu/viros-15.9M/virtioa.qcow2 Use code with caution. Step 4: Fix the permissions (Crucial Step)
This updated guide covers how to safely acquire, convert, and install EVE-NG images for Cisco, Juniper, Arista, and security appliances. 1. Understanding EVE-NG Image Types Download Eve-ng Images -UPD-
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If you are manually adding images, remember these critical steps from EVE-NG tutorials:
cd /opt/unetlab/addons/qemu/ mkdir csr1000v-16.12.04 # Upload csr1000v-universalk9.16.12.04.qcow2 into that folder cd csr1000v-16.12.04 qemu-img resize csr1000v-universalk9.16.12.04.qcow2 +8G # Optional: increase disk Always refer to the official EVE-NG documentation for
Connect to your EVE-NG server via SSH as root and run the following command: /opt/unetlab/wrappers/unl_wrapper -a fixpermissions Use code with caution.
The folder name prefix does not match the official EVE-NG template directory mapping, or permissions have not been fixed. Double-check your spelling against the official EVE-NG image naming document.
Have an image source we missed? Join the EVE-NG Professionals Slack channel to contribute. If you are manually adding images
/opt/unetlab/wrappers/unl_wrapper -a fixpermissions
Downloading proprietary network OS images without proper licensing is often a violation of copyright and EULA terms. Many vendors provide or virtual images for legitimate learning.