Questions and Answers : Unix/Linux : ubuntu 25.04 tasks won't run
Message board moderation

To post messages, you must log in.

AuthorMessage
Toby Broom
Volunteer moderator

Send message
Joined: 27 Sep 08
Posts: 868
Credit: 723,382,386
RAC: 164,511
Message 51889 - Posted: 17 May 2025, 12:39:46 UTC

I just upgraded to 25.04 and there was an issue with VirtualBox:

VBoxManage: error: VirtualBox can't enable the AMD-V extension. Please disable the KVM kernel extension, recompile your kernel and reboot (VERR_SVM_IN_USE)

there was a fix here:

https://superuser.com/questions/1845776/virtualbox-cant-operate-in-vmx-mode
ID: 51889 · Report as offensive     Reply Quote
Dave

Send message
Joined: 3 Aug 17
Posts: 13
Credit: 160,154
RAC: 38
Message 51910 - Posted: 25 May 2025, 20:00:19 UTC - in response to Message 51889.  

Thanks. I found another page with the
sudo modprobe -r kvm_amd
but it had a different file to modify and a different line to add for a permanent fix. I shall try the one from that link.

Really the kernel developers and the VBox people should get together to sort this out so users don't need to do this.
ID: 51910 · Report as offensive     Reply Quote
Saturn911

Send message
Joined: 3 Nov 12
Posts: 70
Credit: 161,540,683
RAC: 73,903
Message 51913 - Posted: 26 May 2025, 18:07:32 UTC - in response to Message 51889.  

Have you tried "module_blacklist" in your kernel parameters?
ID: 51913 · Report as offensive     Reply Quote
Dave

Send message
Joined: 3 Aug 17
Posts: 13
Credit: 160,154
RAC: 38
Message 51914 - Posted: 26 May 2025, 20:19:25 UTC - in response to Message 51913.  

Have you tried "module_blacklist" in your kernel parameters?
I have done that now. Thanks. I haven't tried a reboot to check it yet. I wonder if it would be worth putting out a push notification on BOINC aimed at Linux users as I can see quite a few work units there are at least one or two failures because of VBox not starting just on work units where I have had tasks from. I know my way around a terminal to some extent but there will be a lot out there who don't.
ID: 51914 · Report as offensive     Reply Quote

Questions and Answers : Unix/Linux : ubuntu 25.04 tasks won't run


©2025 CERN