diskimage-builder/elements/vm/finalise.d/51-bootloader
Lucas Alvares Gomes b01f412c1e Rename 51-grub to 51-bootloader
This patch is part of a another big patch that will implement a fallback
to Extlinux in case GRUB2 is not available in the system. The reason why
it's being splitted in two patches is because git is not being able to
recognize the file changes when the rename happens in the same commit.

Change-Id: Ic2027dfa057fd6d62b532203b7ff50c3c739bccb
2013-08-27 10:43:26 +01:00

107 lines
3.4 KiB
Bash
Executable File

#!/bin/bash
# Configure grub. Note that the various conditionals here are to handle
# different distributions gracefully.
set -e
set -x
install-packages grub-pc
# XXX: grub-probe on the nbd0/loop0 device returns nothing - workaround, manually
# specify modules. https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1073731
GRUBNAME=`which grub-install` || echo "trying grub2-install"
if [ -z "$GRUBNAME" ]; then
GRUBNAME="bash -x `which grub2-install`"
fi
if [ -z "$GRUBNAME" ]; then
echo "NO grub-install or grub2-install found"
exit 1
fi
# FIXME:
[ -n "$IMAGE_BLOCK_DEVICE" ]
PART_DEV=$IMAGE_BLOCK_DEVICE
BOOT_DEV=$(echo $IMAGE_BLOCK_DEVICE | sed -e 's/p1//')
GRUB_OPTS=${GRUB_OPTS:""}
# XXX: This is buggy:
# - --target=i386-pc is invalid for non-i386/amd64 architectures
# - and for UEFI too.
# GRUB_OPTS="$GRUB_OPTS --target=i386-pc"
if [[ ! $GRUB_OPTS == *--target* ]]; then
# /sys/ comes from the host machine. If the host machine is using EFI
# but the image being built doesn't have EFI boot-images installed we
# should set the --target to use a BIOS-based boot-image.
#
# * --target tells grub what's the target platform
# * the boot images are placed in /usr/lib/grub/<cpu>-<platform>
# * i386-pc is used for BIOS-based machines
# http://www.gnu.org/software/grub/manual/grub.html#Installation
#
if [ -d /sys/firmware/efi ]; then
if [ ! -d /usr/lib/grub/*-efi ]; then
case $ARCH in
"x86_64"|"amd64")
GRUB_OPTS="$GRUB_OPTS --target=i386-pc"
;;
"i386")
target=i386-pc
if [ -e /proc/device-tree ]; then
for x in /proc/device-tree/*; do
if [ -e "$x" ]; then
target="i386-ieee1275"
fi
done
fi
GRUB_OPTS="$GRUB_OPTS --target=$target"
;;
esac
fi
fi
fi
$GRUBNAME --modules="biosdisk part_msdos" $GRUB_OPTS $BOOT_DEV
# This might be better factored out into a per-distro 'install-bootblock'
# helper.
if [ -f "/boot/grub/grub.cfg" ] ; then
GRUB_CFG=/boot/grub/grub.cfg
elif [ -f "/boot/grub2/grub.cfg" ] ; then
GRUB_CFG=/boot/grub2/grub.cfg
fi
# If GRUB configuration file does not exist, generate one
if [ ! $GRUB_CFG ]; then
if [ -d /boot/grub2 ]; then
GRUB_CFG=/boot/grub2/grub.cfg
elif [ -d /boot/grub ]; then
GRUB_CFG=/boot/grub/grub.cfg
fi
grub2-mkconfig -o $GRUB_CFG
fi;
DIST=`lsb_release -is`
[ -n "$DIST" ]
RELEASE=`lsb_release -cs`
[ -n "$RELEASE" ]
# grub-mkconfig generates a config with the device in it,
# This shouldn't be needed, but old code has bugs
if [ $RELEASE = 'precise' ] ; then
# Replace the search attempt with a hardcoded root as the Ubuntu reference
# images use.
sed -i "s%search --no.*%%" $GRUB_CFG
sed -i "s%set root=.*%set root=(hd0,1)%" $GRUB_CFG
fi
# force use of a LABEL:
# NOTE: Updating the grub config by hand once deployed should work, its just
# prepping it in a different environment that needs fiddling.
sed -i "s%$PART_DEV%LABEL=cloudimg-rootfs%" $GRUB_CFG
sed -i "s%search --no-floppy --fs-uuid --set=root .*$%search --no-floppy --set=root --label cloudimg-rootfs%" $GRUB_CFG
sed -i "s%root=UUID=[A-Za-z0-9\-]*%root=LABEL=cloudimg-rootfs%" $GRUB_CFG
if [ $DIST = 'Fedora' ] ; then
# enable serial console
sed -i "s%LABEL=cloudimg-rootfs%LABEL=cloudimg-rootfs console=tty0 console=ttyS0,115200%" $GRUB_CFG
if [ $(lsb_release -rs) = '19' ]; then
sed -i "s%UUID=[A-Za-z0-9\-]*%LABEL=cloudimg-rootfs%" /etc/fstab
fi
fi