[Bug 2142695] Re: not able to install Ubuntu 26.04 LTS on Power

[Frank Heimes]

** Tags added: rls-rr-incoming

** Also affects: grub2 (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: ubuntu-power-systems
   Importance: Undecided => High

** Changed in: grub2 (Ubuntu)
   Importance: Undecided => High

** Changed in: ubuntu-power-systems
     Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)

** Tags added: ppc64el

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https://bugs.launchpad.net/bugs/2142695

Title:
  not able to install Ubuntu 26.04 LTS on Power

Status in The Ubuntu-power-systems project:
  New
Status in grub2 package in Ubuntu:
  New

Bug description:
  Ubuntu 26.04 LTS (Resolute Raccoon) pending image is not working to
  install on PowerVM LPARs (Power9 and Power10):

  https://cdimage.ubuntu.com/ubuntu-server/daily-live/pending/resolute-
  live-server-ppc64el.iso (image from        2026-02-23 16:30)

  it fails going to grub prompt:

  ```
  Welcome to GRUB!

  error: firmware doesn't have PKS support
  .
  error: invalid partition number.


                               GNU GRUB  version 2.14

     Minimal BASH-like line editing is supported. For the first word, TAB   
     lists possible command completions. Anywhere else TAB lists possible   
     device or file completions. To enable less(1)-like paging, "set        
     pager=1".                                                              

  
  grub> 

  ```

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