[Bug 1398025] Re: Error messages like "error: /dev/sdb: No medium found" on booting

[Joseph]

I noticed that whenever I boot with my external drive switched on, I
also get the error "No Medium Found." So, to solve this problem, I
switch off the external drive before I turn my computer on. And
everything works fine.

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https://bugs.launchpad.net/bugs/1398025

Title:
  Error messages like "error: /dev/sdb: No medium found" on booting

Status in initramfs-tools package in Ubuntu:
  Confirmed

Bug description:
  I'm using Ubuntu 15.04 dev with udev 217-1ubuntu1 and for a few days
  I'm seeing on every boot errors like "error: /dev/sdb: No medium
  found". Here is the content of /var/log/boot.log:

  Begin: Loading essential drivers ... done.
  Begin: Running /scripts/init-premount ... done.
  Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
  Begin: Running /scripts/local-premount ... error: /dev/sdb: No medium found
  error: /dev/sdc: No medium found
  error: /dev/sdd: No medium found
  error: /dev/sde: No medium found
  error: /dev/sdb: No medium found
  error: /dev/sdc: No medium found
  error: /dev/sdd: No medium found
  error: /dev/sde: No medium found
  done.
  Begin: Running /scripts/local-bottom ... done.
  done.
  Begin: Running /scripts/init-bottom ... done.
   * Setting up X socket directories...        
  [ OK ]
   * cryptswap1 (running)...         * Starting early crypto disks...        
  [ OK ]

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