Hi, [2025-06-11 16_14_13-RockyLinux 10 Running - Oracle VirtualBox] I’ve been running RL9 under VirtualBox for a long time with no issues. Thought I’d try spinning up an RL10 VM to check it out. Have tried three different ISOs (DVD, minimal, gnome) and all get a kernel panic when I try to boot.…

Thank you for the response. In my log, there is in fact a line that says: 00:00:02.433059 HM: HMR3Init: Attempting fall back to NEM: VT-x is not available So I found to enable VT-x you do this: VBoxManage modifyvm “RockyLinux 10” --nested-hw-virt on After I did that, the checkbox to enable nest…

I don’t have nested virtualization on myself, so I don’t think that’s necessary. And your log doesn’t mention Hyper-V? Hyper-V is usually the fallback in these situations, but if it’s off and you’re still running into this issue, something else may be getting in the way… and I’m sure you also have v…

There are only two lines in the log that reference hyper-v: 00:00:02.476883 NEM: Disable Hyper-V if you need X2APIC for your guests! 00:00:02.476965 NEM: NEMR3Init: Snail execution mode is active! 00:00:02.476965 NEM: Note! VirtualBox is not able to run at its full potential in this execution mod…

Update: It’s definitely some problem with Windows. I installed RL10 on VirtualBox running under RL9, with ancient Xeon CPUs, and it works fine. Wish I could find the magic Windows incantation to make this work.

I have a i5-11400 and that kernel panics as well.

Note how VM on OP’s post reports: x86-64-v4 x86-64-v3 x86-64-v2 (supported, searched) while the hardware under VirtualBox is i9-14900K. The i9-14900K and i5-11400 do support x86-64-v3. The issue is not the hardware, but what the hypervisor allows the VM to use. In other words, the config of the Vi…

[image] jlehtone: x86-64-v3 There’s something to be followed up with about this. lscpu | grep Virtual reports “full” on a bare metal machine lscpu | grep Virtual reports: VT-x So somehow VirtualBox is not allowing VT-x through. In VirtualBox settings, under SystemProcessor, Enable Nested…

Check your version of VirtualBox! I had the same issue, was on v7.1.0x. Installed latest (v7.1.10r…) and bootup and install worked without issue.

Current VBox is 7.1.12. With earlier versions, RL10 kerne panicked. With current version, RL10 installs and runs, but VT-X is still not passed through so VBox runs in turtle mode. This may be due to being unable to fully disable Hyper-V in the Windows host machine. There are many ways to disable…

RL10 under VirtualBox?

Rocky Linux Help & Support

hspindel June 19, 2025, 7:47am 12

No further info on this? I’ve tried every solution I found. I am not the only person reporting the problem.

Apparently VBox is not allowing VT-x to be presented to a VM.

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RL10 under VirtualBox?

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