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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1492617/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp

