[Bug 1480624] Re: Ubuntu 64bit Desktop 15.04 installation crashes while copying files

[Iris]

** Attachment added: "Partman"
   https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1480624/+attachment/4437576/+files/partman

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Title:
  Ubuntu 64bit Desktop 15.04 installation crashes while copying files

Status in ubiquity package in Ubuntu:
  New

Bug description:
  During the "copying files" step, the installation crashes with an I/O
  error dialog - unfortunately, I can't write out the exact error
  message due to having to close that window to get here :).  I will
  edit it in, or add a reply if I am able after filing this report.

  This is a clean installation on a new 500GB dynamically-allocated
  virtual hard-drive.

  I'm running within the current version of VirtualBox (4.4.30,
  r101610), and I suspect it's a compatibility issue with one of my
  system settings, so is a brief summary of what I changed compared to
  the default:

  * Shared Clipboard -> Host-to-Guest (very unlikely)
  * Base Memory 2048MB, Enable I/O APIC (a relatively likely candidate; I'll test with this disabled after filing the report)
  * 4 processors, 100% execution cap, PAE/NX enabled
  * Video memory 128MB (likely irrelevant)

  As for the host machine, yes, I have enough hard drive space (2TB
  free), enough memory, and a modern, 64-bit processor (i7-2600k with "8
  cores" - not really, I know).

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: ubiquity 2.21.25
  ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
  Uname: Linux 3.19.0-15-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  CasperVersion: 1.360
  Date: Sun Aug  2 00:46:13 2015
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
  LiveMediaBuild: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  ProcEnviron:
   LANGUAGE=en_GB.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_GB.UTF-8
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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