[Bug 2026225] Re: failed kernel mapping specification

[Launchpad Bug Tracker]

This bug was fixed in the package livecd-rootfs - 23.10.34

---------------
livecd-rootfs (23.10.34) mantic; urgency=medium

  [ Steve Langasek ]
  * Drop (outdated, inconsistent) /etc/hosts from ubuntu-server chroot
    includes.

  [ Michael Hudson-Doyle ]
  * auto/config: use the new server-live task to reduce the use of explicit
    calls to add_package and add_snap a bit.

  [ Dave Jones ]
  * clean up references to obsolete pi subarchs no longer built, and remove
    code that writes out /boot/firmware settings that are later clobbered

  [ Dan Bungert ]
  * desktop: adjust kernel to be in the live layer, to support changing which
    kernel is installed rather than always using hwe. (LP: #2026225)

 -- Dan Bungert <daniel.bungert at canonical.com>  Fri, 08 Sep 2023
08:54:13 -0600

** Changed in: livecd-rootfs (Ubuntu)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/2026225

Title:
  failed kernel mapping specification

Status in curtin:
  Fix Released
Status in subiquity:
  Fix Released
Status in livecd-rootfs package in Ubuntu:
  Fix Released

Bug description:
  In testing the current desktop installer ISOs with a freshly build
  u-d-i snap, curthooks fails like follows:

   finish: cmd-install/stage-curthooks/builtin/cmd-curthooks/installing-kernel: FAIL: installing kernel
   finish: cmd-install/stage-curthooks/builtin/cmd-curthooks: FAIL: curtin command curthooks
   Traceback (most recent call last):
     File "/snap/ubuntu-desktop-installer/x1/lib/python3.10/site-packages/curtin/commands/main.py", line 202, in main
       ret = args.func(args)
     File "/snap/ubuntu-desktop-installer/x1/lib/python3.10/site-packages/curtin/commands/curthooks.py", line 1918, in curthooks
       builtin_curthooks(cfg, target, state)
     File "/snap/ubuntu-desktop-installer/x1/lib/python3.10/site-packages/curtin/commands/curthooks.py", line 1752, in builtin_curthooks
       install_kernel(cfg, target)
     File "/snap/ubuntu-desktop-installer/x1/lib/python3.10/site-packages/curtin/commands/curthooks.py", line 375, in install_kernel
       config.merge_config(mapping, kernel_cfg.get('mapping', {}))
   AttributeError: 'NoneType' object has no attribute 'get'
   'NoneType' object has no attribute 'get'
   curtin: Installation failed with exception: Unexpected error while running command.
   Command: ['curtin', 'curthooks']
   Exit code: 3
   Reason: -

  happened as part of an autoinstall test, no override of the kernel
  value.

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