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Re: BL460c Gen9 with Linux 32-bit: only one core CPU detected

 
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ehsianturi
Occasional Advisor

BL460c Gen9 with Linux 32-bit: only one core CPU detected

I would like to know if it is possible at all to run a Linux 32-bit on a BL460c Gen9 server. 

 

I installed 2 linux 32-bit distros: Debian 8.0.0 and Ubuntu 12.04.5, and on both of them, linux detected only 1 CPU core (by inspecting the contents of "/proc/cpuinfo"). 

 

Whereas with linux 64-bit (Ubuntu 12.04.5 and Debian 8.0.0), linux can detect ALL of the CPU cores (I could see 2 CPU with a total of 48 cores).

 

I am wondering if there is a special kernel configuration that should be adjusted so that all CPU cores can be detected in 32-bit linux.


Many thanks in advance.

4 REPLIES 4
Jimmy Vance
HPE Pro

Re: BL460c Gen9 with Linux 32-bit: only one core CPU detected

Only 64 bit OS's are supported on Gen9.  If you really must run a 32 bit OS, you can run it as a virtual machine.

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ehsianturi
Occasional Advisor

Re: BL460c Gen9 with Linux 32-bit: only one core CPU detected

OK many thanks for the answer.

ehsianturi
Occasional Advisor
Solution

Re: BL460c Gen9 with Linux 32-bit: only one core CPU detected

Hello,

 

I finally solved the puzzle.

I have to DISABLE these two options at the same time:

  • ACPI SLIT Preferences
  • x2APIC Support

Disabling only one option will *not* do the trick.

Hope this helps for others.

Jimmy Vance
HPE Pro

Re: BL460c Gen9 with Linux 32-bit: only one core CPU detected


@ehsianturi wrote:

Hello,

 

I finally solved the puzzle.

I have to DISABLE these two options at the same time:

  • ACPI SLIT Preferences
  • x2APIC Support

Disabling only one option will *not* do the trick.

Hope this helps for others.


It may work, but it has not benn tested, nor is it supported by HP or any Linux distributions

 

No support by private messages. Please ask the forum!