[SOLVED] Only 1 CPU after update bios and Proxmox 7 to 8

[eglyn]

Hi all,

We put our servers in maintenance mode to update Proxmox, and iDrac / bios from our Dell Poweredge R630.

And, since this updates, Proxmox see only 1 core on our processor...



The normal number of core:


I try to boot on old kernel (5.15 instead 6.2), but same issue...

In the bios configuration, Intel VT is enable, and all core are enable.

Any idea ?

Thx !

 

[Moayad]

Hello,

Can you post the output of the following?

lscpu
pveversion -v

 

[eglyn]

I found the issue, it was a acpi=off in grub, once remove, processor was detected with all cores ^^

 

[Moayad]

Glad to read that you fix the issue yourself! And thank you for sharing your solution. I will go ahead and make your thread as [SOLVED] to help other people who have the same issue.