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CVM not starting

  • October 25, 2025
  • 8 replies
  • 96 views

Hello,

I just did a new installation, but CVM won't start at all.
No errors occurred during installation.

During setup, the SSDs were selected as ‘C’ and ‘H’.
The HDD was selected as ‘D’.
How can I resolve this issue?

 

Hp z800 workstation

cpu : 2x xeon x5650

ram: 128gb

1x hdd 1tb

2x ssd 250gb

 

 

8 replies

JeroenTielen
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  • Vanguard
  • October 25, 2025

Can you have a look how much memory the cvm has been given by the installer?

 https://www.jeroentielen.nl/change-nutanix-community-edition-cvm-memory/


  • Author
  • Adventurer
  • October 25, 2025

​​​

I added the screenshots.
The memory appears to be 20480.
 

 


JeroenTielen
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  • Vanguard
  • October 26, 2025

I see something strange in your screenshots. On the first screenshot the AHV prompt is root@localhost. This indicates that the installer was not ready yet. On your last screenshot the prompt is changed to match the host name. This means the installer is ready for the AHV part. Please be patient when installing CE ;) It will do lots of things after the first reboot. 

 

But oké lets continue. In your last screenshot your CVM has configured 20GB memory. You say that your server has 128GB memory. Are you running nested or are you running directly installed on bare metal? 


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  • Trendsetter
  • October 26, 2025

as what you have mentioned in your first post, you have installed CE on your computer directly (not nested).can you reboot your computer once and check if the CVM will start or no.
try to start the CVM, (virsh start <cvmname>) does it start?
if it is failing, I suggest , you do the deployment one more time as there could be something went wrong with the deployment.


  • Author
  • Adventurer
  • October 26, 2025

I performed a clean installation again, installing directly on bare metal the same mistake persists.

After installation, I restarted it and waited about 30-40 minutes before trying to run it.

 

 

 


Can you start the cvm vm manually,does it give you any error?!

If you do tail -f ~/logs/genesis.out do you see any errors(some errors are generic).

 


  • Author
  • Adventurer
  • October 26, 2025

In order to access the genesis log file, don't I first need to access the CVM? I can't access the CVM at all. I only have an AHV connection. When I try to start the CVM, I encounter the error shown in the screenshot.


ktelep
Nutanix Employee
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  • Nutanix Employee
  • October 27, 2025

Xeon X5650 are Westmere processors and are not supported with CE2.0+ due to the lack of AVX extensions.  Even if you got the CVM up and running from an OS perspective, you will not be able to configure/run storage.   

The earliest HP workstation that would be supported with be a HP Z820.

Anything that is Sandy bridge or later is supported:

See here for the Hardware Requirements for CE (Sandy Bridge or greater is supported)
https://portal.nutanix.com/page/documents/details?targetId=Nutanix-Community-Edition-Getting-Started-v2_1:top-sysreqs-ce-r.html

And here for a list of Intel Architectures in order (Westmere is pre-Sandy Bridge)
https://en.wikipedia.org/wiki/List_of_Intel_CPU_microarchitectures