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Crystal Pellet
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Message 46331 - Posted: 24 Feb 2022, 7:08:18 UTC

Maybe all these problems are caused by switching from classic BIOS boot to UEFI .... ??
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Message 46332 - Posted: 24 Feb 2022, 7:15:59 UTC - in response to Message 46331.  

IBM called it Microchannel in the past,
Microsoft call it TPM (since five Year all Mainboard manufactories produce it so).
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Message 46338 - Posted: 24 Feb 2022, 12:15:18 UTC - in response to Message 46337.  

There's something up with LHC's tasks not detecting I have virtualisation enabled.

I can't imagine that there is something wrong with the tasks.
The vboxwrapper and vdi-image files aren't changed recently.
It seems that only Windows user are affected and not Linux using VBox.
Could someone with this problem try 1 Rosetta VBox task or a VBox-task from another project?
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computezrmle
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Message 46340 - Posted: 24 Feb 2022, 13:08:30 UTC - in response to Message 46339.  

Perhaps something should be posted somewhere for what is presumably going to affect all Windows users.

We always request to completely disable Hyper-V following the advice given in the VirtualBox forum which also requests to completely disable Hyper-V.
And it's already posted "somewhere".
Google currently has 27000 hits.
We won't add another one.
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Message 46344 - Posted: 24 Feb 2022, 14:18:43 UTC - in response to Message 46343.  

This computer reports 7.86 GB total RAM, 4 CPUs and 2 cores.
Beside that all LHC VMs require hardware virtualization to be enabled.
The (ATLAS) VM is configured to allocate 6.6 GB RAM and 4 processors.

The VirtualBox FAQs request to leave at least 1 core free (= not allocated for a VM).

Hence, on this computer ATLAS should be run using a 2-CPU setup.


Processor online count: 4
Processor count: 4
Processor online core count: 2
Processor core count: 2
Processor supports HW virtualization: no
Memory size: 7862 MByte
Memory available: 5177 MByte


Not sure if Windows disables HW virtualization if it doesn't have enough resources.
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computezrmle
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Message 46346 - Posted: 24 Feb 2022, 15:05:15 UTC - in response to Message 46345.  

What's the difference

Virtualbox (5.2.44) vs. Virtualbox (6.1.32)

On the not working computer you may try Virtualbox 6.1.30 first.
If it still fails you may try Virtualbox 5.2.44

Always ensure to run all tests with fresh VMs.
Never downgrade while a VM is just suspended => they will crash and may leave garbage.
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Message 46366 - Posted: 27 Feb 2022, 18:33:58 UTC
Last modified: 27 Feb 2022, 19:46:41 UTC

Woo Hoo. Also sorted.
Peter's fix didn't help as I have a Home edition of Windows which supposedly doesn't have Hyper-V so no amount of trying to disable it was of any benefit.
So something was still not allowing VBox to see that Virtualisation was Available and Activated.
Downgrading to VBox 6.1.30 didn't help either, nor did uninstalling a couple of Windows updates.
Further Googling found the problem reported elsewhere as well and eventually I found that an Avast Antivirus update had given it a new feature in
Menu - Settings - Troubleshooting called Enable hardware-assisted virtualisation which is checked by default but needs to be UNCHECKED
One host happy again with LHC & -dev and I'm sure the other will be, too once it finishes a couple of Rosettas and a Yoyo.
  (\_/)
 (=^.^=)
 (")_(")
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Message 46368 - Posted: 27 Feb 2022, 19:51:37 UTC - in response to Message 46367.  
Last modified: 27 Feb 2022, 19:53:24 UTC

You need to reboot after unchecking that box to get the setting to "stick". Hoping it fixes those machines for you, as it did mine.
I removed the Happy Bunny's "tail" typo 8¬)
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Message boards : Number crunching : computation error


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