diskimage-builder/elements/bootloader
Ian Wienand 6c8d7432a6 Set grub device in /etc/default/grub
Currently we run grub-mkconfig then go and edit the generated output
in /boot/grub/grub.cfg to override the "root=" arguments to our label.

If another element like project-config's
finalise.d/99-fix-grub-timeout then goes and re-runs grub2-install, it
overwrites these changes.

Grub has GRUB_DEVICE which should override the root device.  Let's try
using this.  Maybe it wasn't around at the time, this code is
more-or-less unchanged from I7d83bb2b359e7a8c3858eca04c96e35cf4e1fe9e

Change-Id: Ibaaa81124098f3c6febe48e455d3e1cd0a5f1761
2017-01-16 09:53:56 +00:00
..
cleanup.d Add a best-effort sudo safety check 2016-05-09 15:41:38 +10:00
finalise.d Set grub device in /etc/default/grub 2017-01-16 09:53:56 +00:00
pkg-map Fix OpenSUSE support 2016-05-03 22:23:51 -07:00
README.rst Set grub timeout default 2016-12-20 11:46:22 +11:00

==========
bootloader
==========

Installs ``grub[2]`` on boot partition on the system. In case GRUB2 is
not available in the system, a fallback to Extlinux will happen. It's
also possible to enforce the use of Extlinux by exporting a
``DIB_EXTLINUX`` variable to the environment.

Arguments
=========

* ``DIB_GRUB_TIMEOUT`` sets the ``grub`` menu timeout.  It defaults to
  5 seconds.  Set this to 0 (no timeout) for fast boot times.