[Bug 1398192] [NEW] Installer hangs on "Preparing to install" if swap is mounted

[Yogu]

Public bug reported:

I tried to install Ubuntu 14.10 by booting it from a USB stick. I am
able to select the language and check the boxes at the next page, but
when I hit "Continue", the cursor changes to a waiting cursor and
nothing else happens.

Then, I chose "Try Ubuntu", started the Disk Manager and saw that two
swap partitions had ben automatically mounted. Unmounting these with
swapoff did the trick, now the installer is running.

The attached debug information have been taken *after* umounting the
swap partitions because I only then learned about the ubuntu-bug
command. I hope they are still valuable.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: ubiquity 2.20.0
ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
Uname: Linux 3.16.0-23-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CasperVersion: 1.345
CurrentDesktop: Unity
Date: Mon Dec  1 23:04:35 2014
InstallCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
LiveMediaBuild: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
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)

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug ubiquity-2.20.0 ubuntu utopic

** Description changed:

  I tried to install Ubuntu 14.10 by booting it from a USB stick. I am
  able to select the language and check the boxes at the next page, but
  when I hit "Continue", the cursor changes to a waiting cursor and
  nothing else happens.
  
  Then, I chose "Try Ubuntu", started the Disk Manager and saw that two
  swap partitions had ben automatically mounted. Unmounting these with
  swapoff did the trick, now the installer is running.
+ 
+ The attached debug information have been taken *after* umounting the
+ swap partitions because I only then learned about the ubuntu-bug
+ command. I hope they are still valuable.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: ubiquity 2.20.0
  ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
  Uname: Linux 3.16.0-23-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CasperVersion: 1.345
  CurrentDesktop: Unity
  Date: Mon Dec  1 23:04:35 2014
  InstallCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  LiveMediaBuild: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  ProcEnviron:
-  TERM=xterm
-  PATH=(custom, no user)
-  XDG_RUNTIME_DIR=<set>
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  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)

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https://bugs.launchpad.net/bugs/1398192

Title:
  Installer hangs on "Preparing to install" if swap is mounted

Status in ubiquity package in Ubuntu:
  New

Bug description:
  I tried to install Ubuntu 14.10 by booting it from a USB stick. I am
  able to select the language and check the boxes at the next page, but
  when I hit "Continue", the cursor changes to a waiting cursor and
  nothing else happens.

  Then, I chose "Try Ubuntu", started the Disk Manager and saw that two
  swap partitions had ben automatically mounted. Unmounting these with
  swapoff did the trick, now the installer is running.

  The attached debug information have been taken *after* umounting the
  swap partitions because I only then learned about the ubuntu-bug
  command. I hope they are still valuable.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: ubiquity 2.20.0
  ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
  Uname: Linux 3.16.0-23-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CasperVersion: 1.345
  CurrentDesktop: Unity
  Date: Mon Dec  1 23:04:35 2014
  InstallCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  LiveMediaBuild: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  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)

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