ubiquity will not start on Xenial liveUSB

[Jane Atkinson]

Ubiquity doesn't load when attempting to install Xubuntu image of 20160322, but reverts to the live media desktop.

Attempting to run the command

sh -c 'ubiquity gtk_ui'

in a terminal, terminates with no error message generated.

However, I can get ubiquity to start successfully if I use the command

sudo -H ubiquity

I didn't follow through with the install in this case.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.50
ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6
Uname: Linux 4.4.0-15-generic i686
ApportVersion: 2.20-0ubuntu3
Architecture: i386
CasperVersion: 1.367
CurrentDesktop: XFCE
Date: Tue Mar 22 07:53:06 2016
InstallCmdLine: file=/cdrom/preseed/xubuntu.seed boot=casper only-ubiquity initrd=/casper/initrd.lz quiet splash ---
LiveMediaBuild: Xubuntu 16.04 LTS "Xenial Xerus" - Beta i386 (20160322)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1560356

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Erick Brunzell (lbsolost)]

Testing Ubuntu Xenial 20160322 amd64 I get the following behavior:

Boot live image, press enter to display advanced menu and select check disc for defects. Test completes successfully.

Press enter to let image reboot and do nothing expecting the standard boot menu to appear, but the boot menu never appears. Instead a window pops up warning that "The installer encountered an unrecoverable error. A desktop session will now run so that you may investigate the problem or try installing again". (image attached)

Click on OK and the live DE appears. Try launching ubiquity and nothing happens.

Reboot and thsi time enter the advanced boot menu again. Then select install from the advanced boot menu and the same warning dialog appears.

[Erick Brunzell (lbsolost)]

The Ubuntu Xenial 20160321 amd64 image was OK and I notice this in the ubiquity changelog:

ubiquity (2.21.50) xenial; urgency=medium

  * Adjust code for change of fwupdate-%arch-signed renaming to fwupdate-signed
  * Automatic update of included source packages: hw-detect
    1.114ubuntu4.

 -- Mario Limonciello <email address hidden> Mon, 21 Mar 2016 19:23:36 +0000

[David Pearson (akxwi-dave)]

same here