[Bug 913811] Re: grub-installer fails to install grub on new install

[TJ]

*** This bug is a duplicate of bug 912431 ***
    https://bugs.launchpad.net/bugs/912431

** Also affects: grub-installer (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: grub2 (Ubuntu)
       Status: New => Invalid

** Changed in: grub-installer (Ubuntu)
       Status: New => Triaged

** This bug has been marked a duplicate of bug 912431
   Preseeded 12.04 grub-install failed: Wrong number of args: mapdevfs <path>

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https://bugs.launchpad.net/bugs/913811

Title:
  grub-installer fails to install grub on new install

Status in “grub-installer” package in Ubuntu:
  Triaged
Status in “grub2” package in Ubuntu:
  Invalid

Bug description:
  When installing from seed (haven't tried manual install), DM crypt and
  LVM, the grub install stage fails with the message:

     grub install (something, something) failed: mapdevfs <path>

  Debugging, this is because the part that reads 'apt-install grub-
  common' outputs:

     Adding 'local diversion of /sbin/start-stop-daemon to /sbin/start-stop-daemon.REAL'
     Adding 'local diversion of /sbin/initctl to /sbin/initctl.REAL'

  this in turn is interpreted as input into $rootfs (calls findfs(),
  which calls grub_probe() which calls apt-install ...).

  This variable is then used by mapdevfs. But since the variable
  contains bogus data, grub-installer fails.


  Changing the relevant line in /usr/bin/grub-installer from:

      apt-install grub-common

  to

      apt-install grub-common > /dev/null

  
  Solves the problem (for me).

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