Hi Jeff,

Please find the attached logs for your reference and record-keeping.

We also consulted our FC card owner regarding the SAN server and FC
configuration. After following his recommendations and re-running the
test with the latest Ubuntu 26.04 daily build, the previously observed
failure logs no longer appeared.

Really thanks for your support.


====Detail investigation and result====
1. Tester's response:

Ubuntu 26.04 Daily Build

The sosreport log has been uploaded as an attachment. During the Ubuntu
installation, no abnormal behavior was observed. The FC card errors were
reported initially and then disappeared afterward.

Test Environment

Two FC ports were connected to SAN volumes:
Volume 1: 190 GB
Volume 2: 90 GB
Both volumes were mounted through SAN.
The installation media successfully detected the mounted volumes.
Ubuntu was installed on a local disk.
NVMe mode was disabled under UEFI.

2. FC card owner Investigation Summary

Based on our investigation, we identified the following conditions that
help prevent the asynchronous login errors:

Ensure the LUNs are assigned to the FC card before powering on the SUT.
If the SAN and SUT are connected but the LUNs have not yet been
assigned, the SAN may record asynchronous login errors from other host
WWPNs.

For a dual-port FC card, please configure both WWPNs on the SAN, even if
only one fiber cable is connected. An unconfigured WWPN may still
attempt a login and generate asynchronous login errors.

Disable NVMe mode on the FC card, as discussed previously.

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https://bugs.launchpad.net/bugs/2146770

Title:
  Async login failed message show after completing Ubuntu26.04
  installation

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