[Bug 1655836] Steps to Reproduce

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** Attachment added: "Steps to Reproduce"
   https://bugs.launchpad.net/bugs/1655836/+attachment/4803259/+files/stepsToReproduce.txt

** Changed in: ubuntu
     Assignee: (unassigned) => Taco Screen team (taco-screen-team)

** Package changed: ubuntu => grub-installer (Ubuntu)

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https://bugs.launchpad.net/bugs/1655836

Title:
  Ubuntu 17.04  installation with "Guided - use entire disk and set up
  LVM" fails

Status in grub-installer package in Ubuntu:
  New

Bug description:
  ---Problem Description---
  Ubuntu 17.04 Guided - use entire disk and set up LVM  and Guided - use entire disk and set up encrypted LVM does not create separate partition for /boot and so fails to complete the installation.

  
  Comment 3
  Looking into the logs ,this error will come if someone is using some external media (ex :USB stick ).Suppose it is /dev/sda and our hard disk is /dev/sdb .. then installation should occur on /dev/sdb, but it is trying to install on /dev/sda.. so workaround is to remove external media and continue. 

  But, here they are doing virtual dvd install on LPAR.

  
  Comment 6

  System drops to (initramfs) prompt after following errors:

  Begin: Running /scripts/local-block ... mdadm: No arrays found in config file or automatically
  done.
  Begin: Running /scripts/local-block ... mdadm: No arrays found in config file or automatically
  done.
  Begin: Running /scripts/local-block ... mdadm: No arrays found in config file or automatically
  done.
  Begin: Running /scripts/local-block ... mdadm: No arrays found in config file or automatically
  done.
  Begin: Running /scripts/local-block ... mdadm: No arrays found in config file or automatically
  done.
  Begin: Running /scripts/local-block ... mdadm: No arrays found in config file or automatically
  done.
  Begin: Running /scripts/local-block ... mdadm: No arrays found in config file or automatically
  done.
  Begin: Running /scripts/local-block ... mdadm: No arrays found in config file or automatically
  done.
  Begin: Running /scripts/local-block ... mdadm: No arrays found in config file or automatically
  done.
  Begin: Running /scripts/local-block ... mdadm: No arrays found in config file or automatically
  mdadm: error opening /dev/md?*: No such file or directory
  mdadm: No arrays found in config file or automatically
  done.
  done.
  Gave up waiting for root device.  Common problems:
   - Boot args (cat /proc/cmdline)
     - Check rootdelay= (did the system wait long enough?)
     - Check root= (did the system wait for the right device?)
   - Missing modules (cat /proc/modules; ls /dev)
  ALERT!  UUID=4209e2c0-aa8e-4d53-b572-382e5d3a88de does not exist.  Dropping to a shell!

  
  BusyBox v1.22.1 (Ubuntu 1:1.22.0-19ubuntu2) built-in shell (ash)
  Enter 'help' for a list of built-in commands.

  (initramfs) 
   
  (initramfs) ls -l /dev/[hs]d*
  ls: /dev/[hs]d*: No such file or directory

  (initramfs) cat /proc/cmdline
  BOOT_IMAGE=/boot/vmlinux-4.9.0-11-generic root=UUID=4209e2c0-aa8e-4d53-b572-382e5d3a88de ro

  (initramfs) cat /proc/modules
  (initramfs) 

  
  Can you try to recreate this problem with today's daily build. 

  Comment 7 
  (In reply to comment #6)

  I was able to recreate this problem with today's build as well.

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