[Bug 1298399] [NEW] grub-efi-amd64 2.02~beta2-7 fails to install on raid/lvm

[Valentijn Sessink]

Public bug reported:

During installation of Trusty on a RAID6/LVM system, the installation fails during the "configure" phase of grub-efi-amd64. The installer message says "GRUB installation failed
The 'grub-efi-amd64-signed' package failed to install into /target/. Without the GRUB boot loader, the installed system will not boot."

The installer log message screen says (among other things):
grub-install: error: cannot open `/boot/grub/x86_64-efi/load.cfg': No such file or directory.

After issuing:
chroot /target
grub-install -v
... the installation of grub also ends with:
grub-install: info: copying `/boot/grub/x86_64-efi/load.cfg' -> `/boot/efi/EFI/ubuntu/grub.cfg'
grub-install: error: cannot open `/boot/grub/x86_64-efi/load.cfg': No such file or directory

Installation is on a raid6 (software-raid) device with lvm, /dev/mapper
/volumegroup-root1404 is the root-fs (ext4 formatted), there is a
separate EFI partition on /dev/sda. The disks are GPT-partitioned.

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1298399

Title:
  grub-efi-amd64 2.02~beta2-7 fails to install on raid/lvm

Status in “grub2” package in Ubuntu:
  New

Bug description:
  During installation of Trusty on a RAID6/LVM system, the installation fails during the "configure" phase of grub-efi-amd64. The installer message says "GRUB installation failed
  The 'grub-efi-amd64-signed' package failed to install into /target/. Without the GRUB boot loader, the installed system will not boot."

  The installer log message screen says (among other things):
  grub-install: error: cannot open `/boot/grub/x86_64-efi/load.cfg': No such file or directory.

  After issuing:
  chroot /target
  grub-install -v
  ... the installation of grub also ends with:
  grub-install: info: copying `/boot/grub/x86_64-efi/load.cfg' -> `/boot/efi/EFI/ubuntu/grub.cfg'
  grub-install: error: cannot open `/boot/grub/x86_64-efi/load.cfg': No such file or directory

  Installation is on a raid6 (software-raid) device with lvm,
  /dev/mapper/volumegroup-root1404 is the root-fs (ext4 formatted),
  there is a separate EFI partition on /dev/sda. The disks are GPT-
  partitioned.

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