[Bug 1310087] Re: update-grub run multiple times during distribution upgrade

[Wolter Hellmund]

Well it appeared to me that each call to update grub was independent
from the others, since each was for a different application. So it
occurred to me that perhaps these could all be queued up and perhaps the
upgrade would perform quicker. What are your thoughts?

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https://bugs.launchpad.net/bugs/1310087

Title:
  update-grub run multiple times during distribution upgrade

Status in “ubuntu-release-upgrader” package in Ubuntu:
  New

Bug description:
  During a system distribution upgrade, the grub boot list is built and
  rebuilt multiple times. It seems it is built first after installing
  the newest linux kernel, and then after each removal of an older
  (obsolete) kernel.

  Description:	Ubuntu 14.04 LTS
  Release:	14.04

  update-manager:
    Installed: 1:0.196.11
    Candidate: 1:0.196.11
    Version table:
   *** 1:0.196.11 0
          500 http://ubuntu.mirror.frontiernet.net/ubuntu/ trusty/main amd64 Packages
          100 /var/lib/dpkg/status

  It is expected to have the grub boot list built only once.

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