On 19 Dec 2024 at 20:18, Jeffrey Walton wrote:
From: Jeffrey Walton <noloa...@gmail.com>
Date sent: Thu, 19 Dec 2024 20:18:53 -0500
Subject: Re: VirtualBox no longer working? Loads but gets
error message.
To: mi...@guam.net,
Community support for Fedora users
<users@lists.fedoraproject.org>
Send reply to: noloa...@gmail.com,
Community support for Fedora users
<users@lists.fedoraproject.org>
> On Thu, Dec 19, 2024 at 7:00 PM Michael D. Setzer II via users
> <users@lists.fedoraproject.org> wrote:
> >
> > On 20 Dec 2024 at 9:33, Michael D. Setzer II via user wrote:
> > [...]
> > > Used it a couple weeks ago, but now get this error message went
> > > trying to start.
> > >
> > > VirtualBox can't operate in VMX root mode.
> > > Please disable the KVM kernel extension, recompile your kernel
> > > and reboot.
> > > (VERR_VMX_IN_VMX_ROOT_MODE).
> > >
> > > Found a link that talks about fixing on Ubuntu, but options don't
> > > seem to exist on Fedora 40.
> > >
> > > Don't use KVM. Looked at removing kvm, but it showed it would
> > > also remove 112 dependency files so opted not to do that?
> > >
> > > Any solutions?
> >
> > Did a test. If I reboot and select 6.11.11 kernel then VirtualBox
> > works fine, but using the 6.12.4 kernel it fails with error?
> >
> > So, know virtual box images are not issues, but something with the
> > 6.12.4 kernel?
>
> This used to happen to me on occasion when a new kernel was released.
> I found the problem was video drivers. VirtualBox would fail to load
> until 6.12 video drivers showed up. Once the new video drivers
> arrived, DKMS would rebuild the VirtualBox driver for 6.12. (NVIDIA or
> AMD was the holdup for the video drivers for the newer kernel).
>
> I don't recall if I received the same error as you -- the
> VERR_VMX_IN_VMX_ROOT_MODE one. However, I recall the machine would
> fail to boot.
>
> My solution was to switch to QEMU/KVM. The kernel folks maintain the
> KVM drivers, so they are always up to date.
>
> Jeff
> --
Ran the akmods to create the file
akmods
Checking kmods exist for 6.12.4-100.fc40.x86_64 [ OK ]
Rebooted and still get the QEMU/KVM error.
Have used VirtualBox for atleast 20 years I believe.
Haven't tired KVM, so not sure how hard or complex it is to do
conversion.
> _______________________________________________
> users mailing list -- users@lists.fedoraproject.org
> To unsubscribe send an email to users-le...@lists.fedoraproject.org
> Fedora Code of Conduct:
> https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> List Archives:
> https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org
> Do not reply to spam, report it:
> https://pagure.io/fedora-infrastructure/new_issue
+------------------------------------------------------------+
Michael D. Setzer II - Computer Science Instructor (Retired)
mailto:mi...@guam.net
mailto:msetze...@gmail.com
mailto:msetze...@gmx.com
Guam - Where America's Day Begins
G4L Disk Imaging Project maintainer
http://sourceforge.net/projects/g4l/
+------------------------------------------------------------+
--
_______________________________________________
users mailing list -- users@lists.fedoraproject.org
To unsubscribe send an email to users-le...@lists.fedoraproject.org
Fedora Code of Conduct:
https://docs.fedoraproject.org/en-US/project/code-of-conduct/
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives:
https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org
Do not reply to spam, report it:
https://pagure.io/fedora-infrastructure/new_issue
