[Bug 1080701] Re: After 'Preparing to install Ubuntu' screen, raring installation hangs

[codeslinger]

further thoughts... now that I have done half-a-dozen full installs plus
many tests...

I think some of the reports above of failures are actually false
positives.  What many people probably do not realize is that partman is
very slow...  I have not benchmarked it for the exact timing, but it's
on the order of several minutes to perform it's disk checks prior to
displaying the menu.  This long delay could easily be mistaken for a
hung session.  You must wait for 5 to 10 minutes before you conclude
that it is actually hung and not just being slow.

However, having said that...  I must also say that so far the only
totally relaible way that I have found to get partman to work, is to
turn off the auto-mounted swap before runnung the installer.

As far as where to begin, in order to find the problem, the chief
observation is that I don't recall encountering any problems when
installing 12.10 and I am certain that the install of 12.04 was trouble-
free.  So to track down this problem I suggest starting by comparing
what changed.

The script itself is archiac legacy code...  I know that shell, sed and
awk have a grand old tradition in the history of *nix, but really and
truely it is a horrible way to do programming.  perhaps it is time for a
full rewrite?  several pieces are already written in python, why not
convert the whole thing to python?  and get rid of those unix sockets
too since that is undoubtly where the hangs are occuring.  just a
thought...

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https://bugs.launchpad.net/bugs/1080701

Title:
  After 'Preparing to install Ubuntu' screen, raring installation hangs

Status in “ubiquity” package in Ubuntu:
  Confirmed
Status in “ubiquity” source package in Raring:
  Confirmed

Bug description:
  Raring desktop i386 20121119 installation hangs on dell inspiron, with
  ubuntu partman:   No matching physical volumes found error message on
  the syslog.

  The following is the syslog segment that may be of interest

  Nov 19 13:22:25 ubuntu partman:   No matching physical volumes found
  Nov 19 13:22:25 ubuntu partman:   Reading all physical volumes.  This may take a while...
  Nov 19 13:22:25 ubuntu partman:   No volume groups found
  Nov 19 13:22:25 ubuntu partman-lvm:   No volume groups found
  Nov 19 13:22:29 ubuntu ntpdate[4662]: adjust time server 91.189.94.4 offset -0.220470 sec
  Nov 19 13:22:32 ubuntu ntfsresize: ntfsresize v2012.1.15AR.5 (libntfs-3g)
  Nov 19 13:22:32 ubuntu ntfsresize: Device name        : /dev/sda3
  Nov 19 13:22:32 ubuntu ntfsresize: NTFS volume version: 3.1
  Nov 19 13:22:32 ubuntu ntfsresize: Cluster size       : 4096 bytes
  Nov 19 13:22:32 ubuntu ntfsresize: Current volume size: 149962973696 bytes (149963 MB)
  Nov 19 13:22:32 ubuntu ntfsresize: Current device size: 149962980352 bytes (149963 MB)
  Nov 19 13:22:32 ubuntu ntfsresize: Checking filesystem consistency ...
  Nov 19 13:22:32 ubuntu ntfsresize: Accounting clusters ...
  Nov 19 13:22:32 ubuntu ntfsresize: Space in use       : 88054 MB (58.7%)
  Nov 19 13:22:32 ubuntu ntfsresize: Collecting resizing constraints ...
  Nov 19 13:22:32 ubuntu ntfsresize: You might resize at 88053858304 bytes or 88054 MB (freeing 61909 MB).
  Nov 19 13:22:32 ubuntu ntfsresize: Please make a test run using both the -n and -s options before real resizing!
  Nov 19 13:22:33 ubuntu ubiquity: umount: /tmp/tmp.83KkHQhjEN: not mounted
  Nov 19 13:22:33 ubuntu ubiquity: umount: /tmp/tmp.vF1xKWu5Pp: not mounted

  Test steps:
  1. Boot the machine with usb
  2. Enter the wireless password to enable the wifi connection
  3. Wait to hear the drums  and select 'Install Ubuntu' with English being the language selection
  4. Click 'Continue' with the default selections on the 'Preparing  to install ubuntu' screen( where it shows the power, available disk space and internet connectivity statu)
  5. The installation does not proceed from this point

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: ubiquity 2.13.3 [modified: lib/partman/automatically_partition/question]
  ProcVersionSignature: Ubuntu 3.7.0-2.8-generic 3.7.0-rc5
  Uname: Linux 3.7.0-2-generic i686
  ApportVersion: 2.6.2-0ubuntu3
  Architecture: i386
  CasperVersion: 1.329
  Date: Mon Nov 19 13:27:12 2012
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  LiveMediaBuild: Ubuntu 13.04 "Raring Ringtail" - Alpha i386 (20121119)
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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