[Bug 1055967] Re: ubiquity kde frontend is broken in current kubuntu daily builds

[Launchpad Bug Tracker]

This bug was fixed in the package ubiquity - 2.10.23

---------------
ubiquity (2.10.23) precise-proposed; urgency=low

  * Honour base-installer/kernel/altmeta when deciding which kernels to
    install or keep installed.

ubiquity (2.10.22) precise-proposed; urgency=low

  [ Dmitrijs Ledkovs ]
  * Make user-setup-encrypted-swap wait until partitioning has finished
    before attempting to adjust /target/etc/fstab. (LP: #1024343)
    (LP: #1068178)

  [ Colin Watson ]
  * Don't remove kernel headers just because we're removing signed kernel
    images of the same flavour (LP: #1070427).

ubiquity (2.10.21) precise-proposed; urgency=low

  [ Colin Watson ]
  * Fix missing parentheses that caused removable installation media
    sometimes to be selected as the default GRUB device (LP: #987418).
  * Support UEFI Secure Boot (LP: #1075181):
    - Try to install a signed kernel if base-installer asks for one, and
      don't leave signed kernels installed if it doesn't.
    - If the SecureBoot EFI variable is set, then ensure that
      grub-efi-amd64-signed and shim-signed remain installed.
    - Copy the signed kernel from /cdrom if it is not in the squashfs.  If
      there is a signed kernel there but no unsigned one, then use sbattach
      to remove the signature and construct the unsigned kernel on the fly.
  * Automatic update of included source packages: base-installer
    1.122ubuntu7.2, grub-installer 1.68ubuntu5.1.

  [ Mario Limonciello ]
  * Don't let oem-config crash from an invalid server return on the timezone
    page. (LP: #887879)

  [ Dmitrijs Ledkovs ]
  * Do not preseed grub-install, if we are not proceeding to install. This
    should fix ValueError, I/O operation on closed file (LP: #1027648)
    (LP: #792652)
  * Prevent progress label to expand & shrink the window (LP: #1046241)

  [ Jonathan Riddell ]
  * Change from a KApplication to a QApplication to avoid using DBus, DBus
    as needed by KApplication no longer works with our multiple user changes
    LP: #1055967
 -- Colin Watson <cjwatson at ubuntu.com>   Thu, 06 Dec 2012 17:20:32 +0000

** Changed in: ubiquity (Ubuntu Precise)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1055967

Title:
  ubiquity kde frontend is broken in current kubuntu daily builds

Status in “ubiquity” package in Ubuntu:
  Fix Released
Status in “ubiquity” source package in Precise:
  Fix Released
Status in “ubiquity” source package in Quantal:
  Fix Released

Bug description:
  How to repeat:

  1) Get e.g., http://cdimage.ubuntu.com/kubuntu/precise/daily-
  live/20120924.1/precise-desktop-amd64.iso

  2) Try to boot it in a VM (qemu/KVM or virtualbox should do fine)

  3) Experience the crash

  
  Please don't ask stacktrace etc since I can't get any (it refuses to load any debug information,
  --pdb doesn't seem to work either).

  A little debugging with --debug shows:
  kubuntu-ubiquity(3341)/kdeui (kdelibs): Session bus not found

  12.04.1 livecd works fine. The major change between that version and now was KDE
  4.8.4 -> 4.8.5 and a small update in dbus-x11 (but my hunch is that the first is the culprit).

  I think the problem is that KDE added a new way to (try to) access the session bus
  under the hood, at a time when ubiquity doesn't expect and so is running as root,
  causing the problem.

  strace shows many -EAGAINs in what seems to be D-bus communication before
  the crash, which seems to support this.

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