[Bug 2147408] Re: Ubuntu 26.04 Boots Into Emergency Mode When Using Multipath on ThinkSystem 440‑16e SAS/SATA PCIe Gen4 12Gb HBA.

[conie chang]

Hi Jeff,

Here are my latest date:


3)Does this work with 24.04 and 25.10?
<Conie> We have tested this issue with 24.04 and the system boots successfully without entering emergency mode.

4)And when you say "Append the "rd.auto"," what do you mean? HOW are you appending it to allow this to work? Can you show a diff of the stock vs updated rd.auto?
<Conie> The issue no longer persists starting from the Ubuntu 26.04 (2026-04-24 build). I am not certain which specific updates between the 2026-03-08 and 2026-04-24 builds resolved it, but the fix appears to be included in the latest image.

I have attached the logs for both the Ubuntu 26.04 (0424 build) and
24.04 for your reference.


Thank you.

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https://bugs.launchpad.net/bugs/2147408

Title:
  Ubuntu 26.04 Boots Into Emergency Mode When Using Multipath on
  ThinkSystem 440‑16e SAS/SATA PCIe Gen4 12Gb HBA.

Status in subiquity package in Ubuntu:
  Incomplete

Bug description:
  Steps to reproduce:
  1.Install Ubuntu 26.04/20260308/ in multipath configuration using JBOD on 440‑16e SAS/SATA PCIe Gen4 12Gb HBA.(resolute-live-server-amd64)
  2.Observe OS Boots into Emergency Mode When Using Multipath device.

  error output: (please see the picture)

  
  Diagnostic:
  1)Append the "rd.auto", it will show multiple single storage devices and mutipath devices, and then install ubuntu 26.04 on one of the multipath devices, it can install OS normally. The detail please see the picture. I also attached the syslog and dmesg.
   
  Expected behaviors:
  Ubuntu26.04 should boot successfully in multipath mode on 440‑16e SAS/SATA PCIe Gen4 12Gb HBA.

  Current behaviors:
  OS Boots into Emergency Mode When Using Multipath on ThinkSystem 440‑16e SAS/SATA PCIe Gen4 12Gb HBA.

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