There's a way to work around this. First, search for the pid of all
running X server instances using the command:
ps aux | grep "/usr/bin/X"
Choose the pid of the X process, and then:
sudo kill PID
where PID is the pid found on the first step.
Now, run sudo lightdm, and you get to a live session with Unity.
** Also affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
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Packages, which is subscribed to lightdm in Ubuntu.
https://bugs.launchpad.net/bugs/1039762
Title:
freeze during Quantal install with USB non persistent key
Status in “lightdm” package in Ubuntu:
New
Status in “ubiquity” package in Ubuntu:
New
Bug description:
I downloaded this iso:
http://cdimage.ubuntu.com/daily-live/20120821/quantal-desktop-amd64.iso for
installing Quantal on a second partition of my PC to carry out some tests, but
during boot of the non persistent USB key (created with Startup disk creator)
the boot of the USB key stalls.
I tried to download the iso twice and checked the md5sum.
I had the problem twice, first time had only a black screen and had to type
ctrl+alt+f1 to get some information with ubuntu-bug and the second time got
some output on a black screen but had to press ctrl+alt+f1 to launch ubuntu-bug.
I'm attaching the apport info of the second try.
I tried to install on this hardware:
http://wiki.ubuntu-it.org/CarlaSella/lshw.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: ubiquity 2.11.22
ProcVersionSignature: Ubuntu 3.5.0-11.11-generic 3.5.2
Uname: Linux 3.5.0-11-generic x86_64
ApportVersion: 2.4-0ubuntu8
Architecture: amd64
CasperVersion: 1.321
Date: Tue Aug 21 21:06:53 2012
InstallCmdLine: noprompt cdrom-detect/try-usb=true
file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet
splash -- maybe-ubiquity
LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120821)
ProcEnviron:
TERM=linux
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)
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