[Bug 1479213] Comment bridged from LTC Bugzilla

[bugproxy]

------- Comment From mauricfo at br.ibm.com 2015-09-17 19:20 EDT-------
Veryfing trusty and vivid with netboot installations on kvm guests (27 -drive arguments, install on the sdaa disk).
Without -proposed, expected failure.
With -proposed, expected pass.

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https://bugs.launchpad.net/bugs/1479213

Title:
  ISST-SAN: fsp-chip: Alpine: LE-UBUNTU 15.10: LPAR chip01 unable to
  install base OS due to inability to install the GRUB boot loader on
  hard disk

Status in grub-installer package in Ubuntu:
  Fix Released
Status in grub-installer source package in Trusty:
  Fix Committed
Status in grub-installer source package in Vivid:
  Fix Committed

Bug description:
  [Impact]
  Administrators installing Ubuntu on systems with more than 26 hard disks.

  [Test case]
  1) start a Ubuntu Server install on a server with > 26 disks: /dev/sdaa should exist.
  2) Complete the installation

  Without the fix, the installation should fail at the "Install the GRUB boot loader on a hard disk" task.
  With the fix, the installation should complete successfully.

  [Regression Potential]
  This has a low regression potential as it only changes enough of grub-installer to allow matching of disks of the naming scheme /dev/[shv]d[a-z]*, where it was previously only matching for one occurrence of the drive letter ([a-z]). This matching only happens when doing the initial installation of a system; further runs will rely directly on grub-install without trying to match device names.

  --

  == Comment: #0 - RODOLFO LOPEZ <lopezro at us.ibm.com> - 2015-07-27 12:55:29 ==
  ---Problem Description---
  PROBLEM DESCRIPTION
  ------------------------------------
  I start the installation of the base operating system in UBUNTU 15.10
  and at the end of the install I get the below pop-up message:

  lqqqqqqqu [!!] Install the GRUB boot loader on a hard disk tqqqqqqqqk
       x                                                                   x
       x                     Installation step failed                      x
       x An installation step failed. You can try to run the failing item  x
       x again from the menu, or skip it and choose something else. The    x
       x failing step is: Install the GRUB boot loader on a hard disk      x
       x                                                                   x
       x                            <Continue>                             x
       x                                                                   x
       mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj

  <Tab> moves; <Space> selects; <Enter> activates buttons

  Contact Information = Pablo Marquez, pablom at us.ibm.com

  ---uname output---
  do not have that information available for the moment.

  Machine Type = 8408-E8E

  ---boot type---
  Network boot

  ---bootloader---
  grub

  ---Kernel cmdline used to launch install---
  SMS

  ---Bootloader protocol---
  tftp

  ---Install repository type---
  install image is in kte.isst.aus.stglabs.ibm.com

  ---Point of failure---
  Other failure during installation (stage 1)

  == Comment: #2 - SANDHYA VENUGOPALA <vsandhya at in.ibm.com> - 2015-07-29
  01:39:49 ==

  We require patches to partman-multipath, parman-base and grub-
  installer packages for Ubuntu 15.10 version to address this
  installation problem.

  These packages have already been updated to Ubuntu Trusty and Ubuntu Vivid.
  LP bug - https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1430074

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