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[David Anderson <1492617@xxxxxxxxxxxxxxxxxx>]

Ok.  Rewiring to have the secondary disk only I was able to 
boot of secondary and that worked.

Rewired back to 2 disks, primary as primary in the wiring.

In grub booted into recovery mode.

Used the dpkg option to get updated and remount as rw.

Got into root shell from grub extended manu and did
   apt-get remove 'nvidia*'
The quotes being essential.
Should probably have done purge, but..did not.
That removed the nvidia and did some kernel stuff.
exited shell and (as the on screen note warned)
only got back to a root shell.  Shutdown.
Then rebooted and the system restarts normally! Yay!

The question, of course, is when I reinstall nvidia
what will happen?  But at least the sytem boots and lightdm
runs now, normally. And I know how to get back to this state.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1492617

Title:
  Kernel Oops during boot

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  System crash during boot.  First encountered when booting
  3.13.0-63-generic #103-Ubuntu on restart after upgrade
  from 3.13.0-62.  that crashes the same way during boot.

  I tried using grub and booted into 3.13.0-62 but that
  behaved the same.  The data that should be here

  System remounts disk readonly
  and boots. I can ssh in to the system (but being read only
  cannot change anything).

  
  Ran memory test overnight (about 1.5 complete cycles
  of the test) and no errors.

  (on the --63)
  uname -a
  Linux Dseti3.home 3.13.0-63-generic #103-Ubuntu SMP Fri Aug 14 21:42:59 UTC 2015
   x86_64 x86_64 x86_64 GNU/Linux

  Two nVidia GTX 760 GPUs.
  Using nVidia drivers because using OpenCL for boinc Seti@home
  and Einstein@home.

  I removed one GPU (as a test) and reboot encountered the same problem.

  Suggestions as to how to figure out what is wrong would
  be most welcome.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-62-generic 3.13.0-62.102
  ProcVersionSignature: Ubuntu 3.13.0-62.102-generic 3.13.11-ckt24
  Uname: Linux 3.13.0-62-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.12
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/dsp', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D9p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  Date: Sat Sep  5 10:21:35 2015
  HibernationDevice: RESUME=UUID=7d28a6a1-b165-4bc2-b6e4-285bdedf6465
  InstallationDate: Installed on 2011-01-23 (1685 days ago)
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  MachineType: Supermicro X8DTN
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-62-generic root=UUID=670968bd-3485-489a-8498-0a508f833e0a ro quiet splash nomodeset
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-62-generic N/A
   linux-backports-modules-3.13.0-62-generic  N/A
   linux-firmware                             1.127.15
  RfKill:
   
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-07-21 (411 days ago)
  dmi.bios.date: 10/06/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 080016
  dmi.board.asset.tag: 1234567890
  dmi.board.name: X8DTN
  dmi.board.vendor: Supermicro
  dmi.board.version: 2.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 17
  dmi.chassis.vendor: Supermicro
  dmi.chassis.version: 1234567890
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080016:bd10/06/2010:svnSupermicro:pnX8DTN:pvr1234567890:rvnSupermicro:rnX8DTN:rvr2.0:cvnSupermicro:ct17:cvr1234567890:
  dmi.product.name: X8DTN
  dmi.product.version: 1234567890
  dmi.sys.vendor: Supermicro

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