[Bug 1334793] Re: PowerVM: ubuntu-14.04 stuck in ibm, client-architecture-support reboot loop

Mon Sep 29 23:43:11 UTC 2014

This bug was fixed in the package grub2 - 2.02~beta2-14

---------------
grub2 (2.02~beta2-14) unstable; urgency=medium

  * On architectures without a real GRUB port, just build the utilities.
    This makes tools such as grub-probe and grub-fstest available
    everywhere, and makes grub-mount available on all Linux and kFreeBSD
    architectures.
  * Remove .MIPS.abiflags section from images (thanks, Jurica Stanojkovic,
    although I used a slightly simpler approach; closes: #762307).
  * Include a text attribute reset in the clear command for ppc
    (LP: #1295255).
  * Disable VSX instruction on powerpc startup to fix booting on ppc64el.
  * Stop adding a CHRP note on chrp_ibm machines, since that apparently
    breaks PowerVM and isn't needed on other machine types as far as we can
    tell (LP: #1334793).
  * Refactor flicker-free-boot configuration in debian/rules to reduce
    duplication.
  * Disable flicker-free-boot on Ubuntu ppc64el for now, as it isn't needed
    there and causes too many problems (LP: #1338471).
  * Use nvram rather than nvsetenv on chrp_ibm machines, since that tool is
    better-supported and copes with such things as nvram being missing in
    qemu.
  * Remove brace-expansion from the postrm, and switch the preinst and
    postrm to /bin/sh (closes: #762940).
  * On ppc64el, look for a PReP partition and install the core image to the
    first one if found.  For now this is done by borrowing prep-bootdev.c
    from grub-installer, incurring a dependency on libparted.

 -- Colin Watson <cjwatson at debian.org>  Fri, 26 Sep 2014 18:05:15 +0100

** Changed in: grub2 (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1334793

Title:
  PowerVM: ubuntu-14.04 stuck in ibm,client-architecture-support reboot
  loop

Status in “grub2” package in Ubuntu:
  Fix Released

Bug description:
  ---Problem Description---
  This bug is a follow-up of Bug#110009. The problem here is after successful installation of Ubuntu 14.04, the system fails to boot the OS. When I select installed OS "Ubuntu" from grub menu, it throws below error and falls back to GRUB menu again and again:

  ..........................................................................
  ..........................................................................
  OF stdout device is: /vdevice/vty at 30000000
  Preparing to boot Linux version 3.13.0-24-generic (buildd at fisher04) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:09:21 UTC 2014 (Ubuntu 3.13.0-24.46-generic 3.13.9)
  Detected machine type: 0000000000000101
  Max number of cores passed to firmware: 256 (NR_CPUS = 2048)
  Calling ibm,client-architecture-support...
  ibm,sp              /vdevice/IBM,sp at 4000
  \
  ibm,sp              /vdevice/IBM,sp at 4000
  \
  Elapsed time since release of system processors: 10675 mins 3 secs
  error: no suitable video mode found.

  Machine Type = IBM,8286-42A Mach serial number: 1069B3T 

  ---Steps to Reproduce---
  1) Try virtual DVD installation
  2) Boot the LPAR via cdrom
      i.e try below commands from openfirmware prompt:

      0> devalias cdrom /vdevice/v-scsi at 30000010/disk at 8300000000000000
      0> boot cdrom

  3) proceed with default installation, 100% installation completes. Boot the installed OS from hard disk and you hit this "no suitable video mode found" error and system falls back to GRUB.

  Install method: virtual DVD

  Install ISO Information: ubuntu-14.04-server-ppc64el.iso

  *Additional Instructions for backup: khusriva at in.ibm.com: 
  -Post a private note with access information to the machine that the bug is occuring on.

  == Comment: #1 - David Heller <hellerda at us.ibm.com> - 2014-06-11 15:32:48 ==
  This seems to be a pretty common problem, albeit with multiple causes.  I see that you already tried some of the workarounds in similar bug here:

  https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/699802

  Still, it seems likely this is due to the video mode that grub is
  attempting to user for the splash screen.  Either that, or it's a
  video driver issue at the grub level.

  Can you please try the procedure in comment #4 here:

  http://wwww.ubuntuforums.org/showthread.php?t=1471399

  This involves booting to an alternate method, such as a live cd, and
  operating on the grub config files in the newly installed system.  If
  you are unable to, or have no success with updating the files, it
  would at least be good to collect the files and attach the information
  here, before sending this back to launchpad

  If you are successful in booting to live CD on the same system where
  the boot fails, it would be good to compare the files from live CD to
  those in the failing system.

  Also, do you mind installing with Ubuntu 14.10 alpha images?

  http://cdimage.ubuntu.com/ubuntu-server/daily/current/utopic-server-
  ppc64el.iso

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