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[Patrice Breton <1329384@xxxxxxxxxxxxxxxxxx>]

** Attachment added: "version.log"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1329384/+attachment/4130475/+files/version.log

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https://bugs.launchpad.net/bugs/1329384

Title:
  32 bits Ubuntu Server installer for 12.04/14.04 does not boot on Dell
  R220 without acpi=off

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Trying to install Ubuntu Server on a brand new Dell R220 (released 2
  months ago).

  Tested multiple installers all from USB:
  - Ubuntu Server 12.04.4 LTS (i686) without any option: kernel panic
  - Ubuntu Server 14.04.4 LTS (i686) without any option: kernel panic
  - Ubuntu Server 12.04.4 LTS (amd64) without any option: works as expected (GOOD)

  
  Tried some options:
  - acpi=off: allows the installer to boot but may have unforeseen consequences (GOOD)
  - acpi=ht: kernel panic
  - pci=noacpi: kernel panic

  The files attached are for a 12.04.4 (latest available as 6/6/14) installation.
  Kernel panic happened into acpi_ex_system_memory_space_handler.

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