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Junos vSwitch

Posted: Wed Aug 20, 2025 3:18 am
by truth_mojo
Hi all,

I am having trouble getting this to install. It seems to hang on mounting /boot. It gives an error that KVM modules are not found. I am running EVE Pro bare metal. The CPU is an AMD Ryzen 7 5800H which does support AMD-V. Unfortunately there is nowhere in the BIOS (Minisforum UM580) to enable or disable VIrtualization. I am successfully running some Cisco KVM nodes with no problem.

Additionally, I was previously running ESXi v8 on this little PC with EVE as a VM, and no issues with that although nested virtualization is not supported for the Juniper vSwitch image so I did not try it.

Re: Junos vSwitch

Posted: Wed Aug 20, 2025 7:09 am
by rusty725
junos switch works on bare metal and intel cpu. amd cpus may fail.
https://www.eve-ng.net/index.php/docume ... ex-switch/

Re: Junos vSwitch

Posted: Wed Aug 20, 2025 11:09 pm
by truth_mojo
I was able to resolve this by using the following line in QEMU custom options in the node:

-smbios type=1,product=VM-VEX -cpu IvyBridge,ibpb=on,spec-ctrl=on,ssbd=on,virt-ssbd=on,svm=on,erms=off

svm=on is the AMD equiv of the Intel feature 'vmx'

Maybe we could add this to the howto page for this image.

Re: Junos vSwitch

Posted: Thu Aug 21, 2025 12:00 am
by rusty725
I'm aware of svm=on but some latest switches won't work with it. So bare metal + intel cpu is the only solution.