[Bug 1752323] [NEW] Ubiquity crashes at startup on Kubuntu daily iso - 2018/02/28

[Rik Mills]

Public bug reported:

Kubuntu 18.04 daily iso dated 2018/02/28
Ubiquity version 18.04.2

Ubiquity crashes on iso startup when trying to display the try/install
screen.

Dismissing it starts the live session.

It also crashes in the same manner when launched from within the live
session.

Error message:

Traceback (most recent call last):
  File "/usr/lib/ubiquity/bin/ubiquity", line 655, in <module>
    main(oem_config)
  File "/usr/lib/ubiquity/bin/ubiquity", line 639, in main
    install(args[0], query=options.query)
  File "/usr/lib/ubiquity/bin/ubiquity", line 270, in install
    wizard = ui.Wizard(distro)
  File "/usr/lib/ubiquity/ubiquity/frontend/kde_ui.py", line 247, in __init__
    mod.ui = mod.ui_class(mod.controller)
  File "/usr/lib/ubiquity/plugins/ubi-prepare.py", line 301, in __init__
    self.set_using_secureboot(False)
  File "/usr/lib/ubiquity/plugins/ubi-prepare.py", line 316, in set_using_secureboot
    self.secureboot_label.setVisible(secureboot)
AttributeError: 'PageKde' object has no attribute 'secureboot_label'

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubiquity 18.04.2
ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3
Uname: Linux 4.15.0-10-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
CasperVersion: 1.388
CurrentDesktop: KDE
Date: Wed Feb 28 13:19:16 2018
InstallCmdLine: file=/cdrom/preseed/kubuntu.seed boot=casper maybe-ubiquity initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
LiveMediaBuild: Kubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180228)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubiquity (Ubuntu)
     Importance: Critical
         Status: New


** Tags: amd64 apport-bug bionic kubuntu rls-bb-incoming ubiquity-18.04.2

** Changed in: ubiquity (Ubuntu)
   Importance: Undecided => Critical

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Title:
  Ubiquity crashes at startup on Kubuntu daily iso - 2018/02/28

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