diskimage-builder/elements/ubuntu/pre-install.d/00-remove-grub

#!/bin/bash
# The grub post-kernel install hook will barf if the block device can't be
# found (as happens in a chroot).
# Temporarily remove grub, to avoid that confusion.

set -eu
set -o pipefail

if dpkg-query -W grub-pc; then
  apt-get -y remove grub-pc
fi

if dpkg-query -W grub2-common; then
  apt-get -y remove grub2-common
fi
Build images using loopdev instead of qemu-nbd. Qemu-nbd does not perform well with older versions of qemu due to the lack of writeback caching mode. It also only builds qcow2 images and there is a desire for raw image support. Finally, qemu-nbd makes it very difficult to build images concurrently due to the somewhat opaque nature of how it selects a /dev/nbd# device. losetup, on the other hand, makes this process very straight forward. Change-Id: I309fad8af4fd1e8d1720c17b65e1897a76d5e897 Co-Author: Clint Byrum <clint@fewbar.com> 2013-04-02 00:25:25 +00:00			`#!/bin/bash`
			`# The grub post-kernel install hook will barf if the block device can't be`
			`# found (as happens in a chroot).`
			`# Temporarily remove grub, to avoid that confusion.`

set -u and -o pipefail everywhere As with the previous similar changes, this is intended to catch problems as they happen instead of ignoring them and continuing on to potentially fail later. Setting this on all existing scripts will allow us to enforce use via Jenkins. Change-Id: Iad2d490c86dceab148ea9ab08f457c49a5d5352e 2014-04-03 02:24:15 +00:00			`set -eu`
			`set -o pipefail`
Build images using loopdev instead of qemu-nbd. Qemu-nbd does not perform well with older versions of qemu due to the lack of writeback caching mode. It also only builds qcow2 images and there is a desire for raw image support. Finally, qemu-nbd makes it very difficult to build images concurrently due to the somewhat opaque nature of how it selects a /dev/nbd# device. losetup, on the other hand, makes this process very straight forward. Change-Id: I309fad8af4fd1e8d1720c17b65e1897a76d5e897 Co-Author: Clint Byrum <clint@fewbar.com> 2013-04-02 00:25:25 +00:00
Fix issue with Ubuntu grub pre-install step for ARM The Ubuntu build for ARM breaks when the pre-install step attempts to remove grub components. This change gates those package removals based on whether they are currently installed. Change-Id: Ie169dbf12213e69b3713b3b1f9a68ae224f9fd31 2013-11-18 23:12:27 +00:00			`if dpkg-query -W grub-pc; then`
			`apt-get -y remove grub-pc`
			`fi`

			`if dpkg-query -W grub2-common; then`
			`apt-get -y remove grub2-common`
			`fi`