[Bug 1487365] Comment bridged from LTC Bugzilla

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------- Comment From venkatb3 at in.ibm.com 2015-09-09 04:09 EDT-------
Hi Mauricio,

First of all its blocking two of our test-cases. One which explicitly
says to install OS on Raid and other test case, also needs to be
installed OS on Raid and one of the drive to be hot-pluged and data(OS
should be up and running) should be intact.

And, this being firestone machine, which has only two SATA drive and no
adaptor is present to access these drives, So it become even more
critical, that we test this scenario. As customer may obviously want to
install OS on RAID1 rather than installing on just a plain drive, for
obvious reasons.

Thanks,
Venkat.

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https://bugs.launchpad.net/bugs/1487365

Title:
  Ubuntu14.04 .3 RAID installation fails on firestone

Status in debian-installer package in Ubuntu:
  New

Bug description:
  Problem Description
  =======================
  Installation goes smoothly, until it reaches grub installation, and fails with fatal error there.
   
  Machine Type = pio-firestone 
   
  ---boot type---
  QEMU direct boot kernel/initrd
   
  ---Kernel cmdline used to launch install---
  kexec -l /root/vmlinux.venkat -i /root/initrd.gz.venkat
  kexec -e

  == Comment: # - Venkat R. B <venkatb3 at in.ibm.com> - 2015-08-14 08:08:41 ==
  I am trying to install Ubuntu14.04 on the firestone machine on a RAID1 array, configured with software raid.
  Installation goes on smoothly till its reaches grub loader and fails. Below I have pasted the error.

               ?? [!!] Install the GRUB boot loader on a hard disk ??
    ????????????                                                    ? ?????????
    ?          ?        Unable to install GRUB in /dev/md0p1        ?         ?
    ?          ? Executing 'grub-install /dev/md0p1' failed.        ?         ?
    ?          ?                                                    ?         ?
    ? Running "? This is a fatal error.                             ?         ?
    ?          ?                                                    ?         ?
    ????????????     <Go Back>                       <Continue>     ? ?????????
               ?                                                    ?
               ??????????????????????????????????????????????????????

  == Comment: # - Mauricio Faria De Oliveira <mauricfo at br.ibm.com> - 2015-08-20 09:31:11 ==
  grub-installer pieces from syslog

  Aug 19 11:07:43 grub-installer: info: Installing grub on '/dev/md0p1'
  Aug 19 11:07:43 grub-installer: info: grub-install does not support --no-floppy
  Aug 19 11:07:43 grub-installer: info: Running chroot /target grub-install  --force "/dev/md0p1"
  Aug 19 11:07:43 grub-installer: Installing for powerpc-ieee1275 platform.
  Aug 19 11:08:01 grub-installer: grub-install: error: failed to copy Grub to the PReP partition.
  Aug 19 11:08:01 grub-installer: error: Running 'grub-install  --force "/dev/md0p1"' failed.

  and the "error:" message 'failed to copy Grub to the PReP partition.'
  is not generated by the grub-installer script itself [1], so probably
  coming down from grub2.

  I'd suggest to either involve our grub2 guy (not sure if available),
  or mirroring to Canonical.


  [1] http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/trusty/grub-
  installer/trusty-updates/view/head:/grub-installer

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