[Bug 1512505] Re: [SRU] [HWE] Backport efibootmgr 0.12-4 to 15.04

[Jared Dominguez]

Hi, I maintain efibootmgr/efivar in Debian.

Ubuntu 14.04's efibootmgr (0.5.4-7ubuntu1) doesn't even use efivar, so
you don't need to worry about dependencies there.

If you're concerned about 15.04's efibootmgr (0.11.0-3), then you'll
need to observe the restrictions in efibootmgr's debian/control as
efibootmgr started depending on libefivar as of efibootmgr version
0.7.0-1. There are API changes in efivar that require that both packages
be updated together (around efibootmgr 0.11 - 0.12 IIRC). This is well
documented in the debian/changelogs for the respective packages as well
as the git history on Alioth.

As far as the efivar version dependency change in efibootmgr 0.12-2, it
has to do with the SONAME version format changing in efivar 0.20-2. This
is mentioned in the debian/changelog for efibootmgr 0.12-2 and the git
history on Alioth.

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https://bugs.launchpad.net/bugs/1512505

Title:
  [SRU] [HWE] Backport efibootmgr 0.12-4 to 15.04

Status in efibootmgr package in Ubuntu:
  New

Bug description:
  [Impact]
  Shipping fwupdate in 15.04 (hardware enablement tool; a firmware updater tool) requires the use of efivar > 0.16; which in turn requires a slightly newer version of efibootmgr (at least 0.12-2).

  [Test Case]
  - Install libefivar0.

  Installing libefivar0 will attempt to remove efibootmgr, which is
  quite unhelpful when one has to deal with EFI boot entries.
  Furthermore, efibootmgr is a Dependency of grub EFI images, of which
  the removal would likely be catastrophic to booting the system.

  [Regression Potential]
  Issues in efibootmgr would show up as the inability to configure new (or modify old) EFI boot entries; for example inability to install a boot image on some specific disks.

  efibootmgr is critical to the proper function of grub updates for EFI
  systems.

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