[Bug 1687183] [NEW] 17.04 grub installer crushed

[DEnis]

Public bug reported:

Ubuntu 17.04 installation was on assembled software raid partitions. 
Installation process could not install bootloader on "/dev/sdg /dev/sdf", after I replaced to only /dev/sdf, the grub installed is crushed.


root at ubuntu:~# sudo mdadm --detail --scan 
ARRAY /dev/md/boot metadata=1.2 name=srv:boot ...
ARRAY /dev/md/root metadata=1.2 name=srv:root ...
ARRAY /dev/md/home metadata=1.2 name=srv:home ...

root at ubuntu:~# sudo mdadm --detail /dev/md/boot
/dev/md/boot:
        Version : 1.2
  Creation Time : Sun Jul 20 23:17:39 2014
     Raid Level : raid1
     Array Size : 3143616 (3.00 GiB 3.22 GB)
  Used Dev Size : 3143616 (3.00 GiB 3.22 GB)
   Raid Devices : 2
  Total Devices : 2
    Persistence : Superblock is persistent

    Update Time : Sat Apr 29 12:40:12 2017
          State : clean 
....

    Number   Major   Minor   RaidDevice State
       0       8       97        0      active sync   /dev/sdg1
       2       8       81        1      active sync   /dev/sdf1

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: ubiquity 17.04.9
ProcVersionSignature: Ubuntu 4.10.0-19.21-generic 4.10.8
Uname: Linux 4.10.0-19-generic x86_64
ApportVersion: 2.20.4-0ubuntu4
Architecture: amd64
CasperVersion: 1.380
Date: Sat Apr 29 12:41:19 2017
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash ---
LiveMediaBuild: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
ProcEnviron:
 TERM=unknown
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
 LC_NUMERIC=C.UTF-8
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: grub-installer (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug ubiquity-17.04.9 ubuntu zesty

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https://bugs.launchpad.net/bugs/1687183

Title:
  17.04 grub installer crushed

Status in grub-installer package in Ubuntu:
  New

Bug description:
  Ubuntu 17.04 installation was on assembled software raid partitions. 
  Installation process could not install bootloader on "/dev/sdg /dev/sdf", after I replaced to only /dev/sdf, the grub installed is crushed.

  
  root at ubuntu:~# sudo mdadm --detail --scan 
  ARRAY /dev/md/boot metadata=1.2 name=srv:boot ...
  ARRAY /dev/md/root metadata=1.2 name=srv:root ...
  ARRAY /dev/md/home metadata=1.2 name=srv:home ...

  root at ubuntu:~# sudo mdadm --detail /dev/md/boot
  /dev/md/boot:
          Version : 1.2
    Creation Time : Sun Jul 20 23:17:39 2014
       Raid Level : raid1
       Array Size : 3143616 (3.00 GiB 3.22 GB)
    Used Dev Size : 3143616 (3.00 GiB 3.22 GB)
     Raid Devices : 2
    Total Devices : 2
      Persistence : Superblock is persistent

      Update Time : Sat Apr 29 12:40:12 2017
            State : clean 
  ....

      Number   Major   Minor   RaidDevice State
         0       8       97        0      active sync   /dev/sdg1
         2       8       81        1      active sync   /dev/sdf1

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: ubiquity 17.04.9
  ProcVersionSignature: Ubuntu 4.10.0-19.21-generic 4.10.8
  Uname: Linux 4.10.0-19-generic x86_64
  ApportVersion: 2.20.4-0ubuntu4
  Architecture: amd64
  CasperVersion: 1.380
  Date: Sat Apr 29 12:41:19 2017
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash ---
  LiveMediaBuild: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
  ProcEnviron:
   TERM=unknown
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
   LC_NUMERIC=C.UTF-8
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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