I'm running Ubuntu 24.04 on my laptop (System76 Darter Pro w/ Intel) and Workstation (System76 Thelio Mega with AMD Ryzen Threadripper 7975) both with Virtualbox 7.0.20 with a Windows 10 guest. I've installed the Virtualbox-dkms. Virtualbox works on my laptop no problem. On the workstation I am unable to get the Windows host to start up. I believe it has to do with the virtualization parameters. I only get a black screen if nested paging is on and paravirtualization interace is default. If I turn off nested paging, reduce the processors to 1, and use KVM paravirtualization it almost starts but I get the attached error.
I'm attaching a couple logs for KVM paravirtualization and HyperV paravirtualization (as much of the logs at the forum allows me to upload).
Any help would be so appreciated!
Thank you,
-Ben B.
Virtualization on Ubuntu host with AMD Threadripper 7975
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- Posts: 3
- Joined: 6. Sep 2024, 23:17
Virtualization on Ubuntu host with AMD Threadripper 7975
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- VBox.KVM_top.log
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- VBox.HyperV_top.log
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Re: Virtualization on Ubuntu host with AMD Threadripper 7975
Try disabling the 5th page table level (dunno if your CPU has it...) by adding "no5lvl" to your host's kernel command line... just a poke in the dark.
Re: Virtualization on Ubuntu host with AMD Threadripper 7975
Hi!
Had the same problem. Doubble check, if SR-IOV is enabled in the BIOS. After enabling it, I was able to start my VMs, even with nested paging checked!
Regards!
Had the same problem. Doubble check, if SR-IOV is enabled in the BIOS. After enabling it, I was able to start my VMs, even with nested paging checked!
Regards!
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- Posts: 3
- Joined: 6. Sep 2024, 23:17
Re: Virtualization on Ubuntu host with AMD Threadripper 7975
Thanks Buscho, SR-IOV was enabled in the Bios. Still no luck