[Bug 1466150] Re: grub-install breaks when ESP is on raid

[Alek_A]

Hi! I have same issue. We are running Ubuntu 16.04 on our servers,
/boot/efi is on /dev/md0 (which is raid1 metadata 0.90 array of 4 little partitions, each on the beginning of one of the 4 disks)
System boots normally, but I believe that is because the EFI entries were created before, when the partitions were not in the mirror. Or maybe BIOS detects them somehow!

# grub-install
Installing for x86_64-efi platform.
efibootmgr: option requires an argument -- 'd'
efibootmgr version 0.12
usage: efibootmgr [options]
        -a | --active         sets bootnum active
        -A | --inactive       sets bootnum inactive
        -b | --bootnum XXXX   modify BootXXXX (hex)
        -B | --delete-bootnum delete bootnum (hex)
        -c | --create         create new variable bootnum and add to bootorder
        -C | --create-only      create new variable bootnum and do not add to bootorder
        -D | --remove-dups      remove duplicate values from BootOrder
        -d | --disk disk       (defaults to /dev/sda) containing loader
        -e | --edd [1|3|-1]   force EDD 1.0 or 3.0 creation variables, or guess
        -E | --device num      EDD 1.0 device number (defaults to 0x80)
        -g | --gpt            force disk with invalid PMBR to be treated as GPT
        -i | --iface name     create a netboot entry for the named interface
        -l | --loader name     (defaults to \EFI\redhat\grub.efi)
        -L | --label label     Boot manager display label (defaults to "Linux")
        -n | --bootnext XXXX   set BootNext to XXXX (hex)
        -N | --delete-bootnext delete BootNext
        -o | --bootorder XXXX,YYYY,ZZZZ,...     explicitly set BootOrder (hex)
        -O | --delete-bootorder delete BootOrder
        -p | --part part        (defaults to 1) containing loader
        -q | --quiet            be quiet
        -t | --timeout seconds  set boot manager timeout waiting for user input.
        -T | --delete-timeout   delete Timeout.
        -u | --unicode | --UCS-2  pass extra args as UCS-2 (default is ASCII)
        -v | --verbose          print additional information
        -V | --version          return version and exit
        -w | --write-signature  write unique sig to MBR if needed
        -@ | --append-binary-args file  append extra args from file (use "-" for stdin)
        -h | --help             show help/usage
Installation finished. No error reported.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to grub2 in Ubuntu.
https://bugs.launchpad.net/bugs/1466150

Title:
  grub-install breaks when ESP is on raid

Status in grub2 package in Ubuntu:
  Triaged

Bug description:
  I run a server with mirrored (RAID1) disks using grub-efi.

  Root and /boot and /boot/grub are on mirrored partitions.

  I have EFI partitions on both disks but it is not possible to RAID1
  these as they are FAT32.  On an EFI system grub-install will only
  install to one of the EFI partitions and so after running install-grub
  you have to remember to copy the EFI file across.

  Could grub configuration and grub-install be amended to automatically
  install to multiple disks?

  Searching around there seem to be many people asking this question
  without any elegant solution.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1466150/+subscriptions