| Symptom | Likely Cause | Better Fix | |--------|--------------|-------------| | Node starts but shows "Booting from Hard Disk..." forever | Missing or wrong disk name | Ensure virtioa.qcow2 exists. Case-sensitive. | | Console hangs with "Guest has not initialized display" | Missing QEMU agent or wrong VGA mode | Edit node and set console to "telnet" (not VNC). | | Extreme CPU usage (100% all the time) | Missing virtio or no KVM | Reconvert image with virtio. Enable KVM in node config. | | Node disappears after fixpermissions | Corrupt image file | Run qemu-img check virtioa.qcow2 . If errors, re-download. | | "Permission denied" when starting node | Wrong ownership | Run fixpermissions again. Do not use chmod 777 . |
If you want to optimize your lab environment further, tell me you are currently trying to download, or if you need the exact naming syntax for a specific device model . Share public link
If you want, I can:
If you downloaded a VMware .vmdk image, convert it to an optimized, compressed .qcow2 file using native Linux tools. This significantly reduces the storage footprint: eveng qemu images download better
Many developers host automated scripts (such as Packer or Ansible configurations) that pull official ISOs and automatically build optimized QEMU images locally.
The official source for Cisco images. Palo Alto Customer Support: Download PA-VM QCOW2 images. Fortinet Support: Download FortiGate VM images. 3. Specialized GitHub Repositories
This pre-configures the node type, so you don't have to manually set resources each time. | Symptom | Likely Cause | Better Fix
If you only have raw or VMDK images, use the qemu-img convert command to transform them into QCOW2.
For the most stable experience, download KVM/QCOW2 images directly from vendors like Juniper (vMX/vQFX) Cisco (DevNet) Community Forums & Mega/Drive Links:
One of the most efficient "hacks" for finding non-proprietary or common images is leveraging PnetLab’s built-in search functionality. PnetLab is architecturally similar to EVE-NG and includes a server with readily available images. | | Extreme CPU usage (100% all the
Operating system vendors design their software to run on dedicated hardware or enterprise hypervisors like VMware ESXi. They are not natively tuned to run inside nested KVM/QEMU environments under Ubuntu. Ideal Resource Allocation
: Download only the specific images you need from a large pack.