help on virtual machines

SANDROlopez

New Member
Mar 11, 2024
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When I try to start a machine on my proxmox v8.1 installed in virtualbox as a test, everything runs fine, all the functions are working correctly, the only problem I have is the following:


When it comes to turning on a virtual machine, in this case Linux DEBIAN 12 gives me the following error:

TASK ERROR: KVM virtualisation configured, but not available. Either disable in VM configuration or enable in BIOS.


Could you help me? I already have the virtualization with nested VT-x/AMD-V

KMV VIRTUALIZATION IS ALSO ACTIVATED ON THE VIRTUAL MACHINE IN PROXMOX
 
Last edited:
When I try to start a machine on my proxmox v8.1 installed in virtualbox as a test, everything runs fine, all the functions are working correctly, the only problem I have is the following:


When it comes to turning on a virtual machine, in this case Linux DEBIAN 12 gives me the following error:

TASK ERROR: KVM virtualisation configured, but not available. Either disable in VM configuration or enable in BIOS.


Could you help me? I already have the virtualization with nested VT-x/AMD-V

KMV VIRTUALIZATION IS ALSO ACTIVATED ON THE VIRTUAL MACHINE IN PROXMOX
Looks like Virtual Box does not support running Proxmox inside Virtual Box (and only supports Virtual Box inside Virtual Box): https://forum.proxmox.com/threads/nested-virtualisation-problem.59647/post-275286