ubiquity crashed with dbus.exceptions.DBusException in call_blocking(): org.freedesktop.DBus.Error.InvalidArgs: No such interface '/org/freedesktop/UPower'

[Richard Holmes]

Daukt Build as of 19th Feb 2016

Crashes when starting in Install mode and also when trying Ubuntu then clicking install.

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.44
ProcVersionSignature: Ubuntu 4.4.0-6.21-generic 4.4.1
Uname: Linux 4.4.0-6-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CasperVersion: 1.367
Date: Sat Feb 20 13:34:21 2016
ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
InterpreterPath: /usr/bin/python3.5
LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160219)
ProcCmdline: /usr/bin/python3 /usr/lib/ubiquity/bin/ubiquity gtk_ui
ProcEnviron: Error: [Errno 13] Permission denied: '/proc/2233/environ'
PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', 'gtk_ui']
SourcePackage: ubiquity
Title: ubiquity crashed with dbus.exceptions.DBusException in call_blocking(): org.freedesktop.DBus.Error.InvalidArgs: No such interface '/org/freedesktop/UPower'
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1547518, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.

[Launchpad Janitor (janitor)]

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

[Nikola Kovacs (nx)]

1547518 is private for some reason. The workaround is pretty simple:

edit /usr/lib/ubiquity/ubiquity/upower.py, make setup_power_watch return immediately, and make has_battery return False.

It should look like this:

def setup_power_watch(prepare_power_source):
    return
    # rest of the code can stay

def has_battery():
    return False
    # rest of the code can stay