[Bug 1721317] Re: graphical installer crashed.

[HankB]

Without rebooting I followed directions at
https://askubuntu.com/questions/83037/how-do-i-reinstall-grub2, mounted
/ and /boot/efi:

root at ubuntu:~# df
Filesystem     1K-blocks    Used Available Use% Mounted on
udev            16421252       0  16421252   0% /dev
tmpfs            3287460    9792   3277668   1% /run
/dev/sdc         1550400 1550400         0 100% /cdrom
/dev/loop0       1496320 1496320         0 100% /rofs
aufs            16437292 2260244  14177048  14% /
tmpfs           16437292   18012  16419280   1% /dev/shm
tmpfs               5120       4      5116   1% /run/lock
tmpfs           16437292       0  16437292   0% /sys/fs/cgroup
tmpfs           16437292     524  16436768   1% /tmp
tmpfs            3287460      84   3287376   1% /run/user/999
/dev/sdb2       50264772   53072  47635316   1% /mnt
/dev/md0          523248    3496    519752   1% /mnt/boot/efi
root at ubuntu:~# ls /mnt/boot/efi
EFI
root at ubuntu:~# ls /mnt/boot/efi/EFI/
Dell  ubuntu
root at ubuntu:~# grub-install --root-directory=/mnt /dev/sdb
Installing for i386-pc platform.
grub-install: warning: this GPT partition label contains no BIOS Boot Partition; embedding won't be possible.
grub-install: warning: Embedding is not possible.  GRUB can only be installed in this setup by using blocklists.  However, blocklists are UNRELIABLE and their use is discouraged..
grub-install: error: will not proceed with blocklists.
root at ubuntu:~# grub-install --force --root-directory=/mnt /dev/sdb
Installing for i386-pc platform.
grub-install: warning: this GPT partition label contains no BIOS Boot Partition; embedding won't be possible.
grub-install: warning: Embedding is not possible.  GRUB can only be installed in this setup by using blocklists.  However, blocklists are UNRELIABLE and their use is discouraged..
Installation finished. No error reported.
root at ubuntu:~# update-grub
/usr/sbin/grub-probe: error: failed to get canonical path of `aufs'.
root at ubuntu:~# 

Tried to boot from BIOS (UEFI boot manager) selecting "integrated RAID
Controller 1: ubuntu" and got a "GRUB>" prompt. Seems like no way to
boot from second drive via the UEFI BIOS. Swapped drives with same
result.

or similar hoping

-- 
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https://bugs.launchpad.net/bugs/1721317

Title:
  graphical installer crashed.

Status in grub-installer package in Ubuntu:
  New

Bug description:
  Installing to /dev/sdb with /boot/efi on an MD RAID1 partition. Booted
  to live environment, apt upgrade/update, install mdadm (and gparted)
  brought up the RAID and started the install. Selected /dev/md0 for EFI
  partition and /dev/sdb2 for '/' (formatted as EXT4) Selected /dev/sdb
  for GRUB installation.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubiquity 2.21.63.4 [modified: lib/partman/automatically_partition/question]
  ProcVersionSignature: Ubuntu 4.10.0-28.32~16.04.2-generic 4.10.17
  Uname: Linux 4.10.0-28-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.10
  Architecture: amd64
  CasperVersion: 1.376.2
  Date: Wed Oct  4 12:52:56 2017
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
  LiveMediaBuild: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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