[Bug 701060] Re: Boot failure

[peterzay]

I was testing my system for IPv6 as follows using admin account:
- set IPv4 from automatic to link-local only
- set IPv6 to automatic
- shutdown
- boot
- got check disk
- don't remember if I got animated red dots (sorry, was focussed on other things)
- got boot hang with black screen

Tried:
- ESC 1x and repeatedly: no effect
- SHIFT 1x and repeatedly: no effect
- CTRL+ALT+F1: no effect
- LeftAlt+F1: no effect
- RightAlt+F1: no effect

Then tried CTRL+ALT+DEL
- got a blinking screen with Ubuntu red dots superimposed on top of verbose splash messages
- that led to a successful reboot

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https://bugs.launchpad.net/bugs/701060

Title:
  Boot failure

Status in “plymouth” package in Ubuntu:
  New

Bug description:
  Occasionally, 10.04 won't boot at all or hesitate.  CTRL-ALT-DEL may
  help, but sometimes even that won't work.  I boot once daily.  The
  problem happens 1-2 times per week.  Should I upgrade to 10.10 to
  solve this?

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: gnome (not installed)
  ProcVersionSignature: Ubuntu 2.6.32-27.49-generic 2.6.32.26+drm33.12
  Uname: Linux 2.6.32-27-generic i686
  Architecture: i386
  Date: Mon Jan 10 10:13:31 2011
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: meta-gnome2
  --- 
  Architecture: i386
  DefaultPlymouth: /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
  DistroRelease: Ubuntu 10.04
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
  MachineType: LENOVO 2746CTO
  Package: plymouth 0.8.2-2ubuntu2.2
  PackageArchitecture: i386
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-31-generic root=UUID=17572f50-ecf1-466d-a20e-0ded10d25e56 ro
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcVersionSignature: Ubuntu 2.6.32-31.61-generic 2.6.32.32+drm33.14
  Tags: lucid
  TextPlymouth: /lib/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
  Uname: Linux 2.6.32-31-generic i686
  UserGroups: adm audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare tape vboxusers video
  dmi.bios.date: 05/29/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6AET58WW
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: 2746CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: LENOVO 6AET58WW
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: LENOVO 6AET58WW
  dmi.modalias: dmi:bvnLENOVO:bvr6AET58WW:bd05/29/2009:svnLENOVO:pn2746CTO:pvrThinkPadSL500:rvnLENOVO:rn2746CTO:rvrLENOVO6AET58WW:cvnLENOVO:ct10:cvrLENOVO6AET58WW:
  dmi.product.name: 2746CTO
  dmi.product.version: ThinkPad SL500
  dmi.sys.vendor: LENOVO