diskimage-builder/elements/vm/block-device.d/10-partition
yogananth subramanian 631cae1fee Enable vm element to create PowerPC image
Patch adds support to create PowerPC image with vm element.
It creates 2 partitions, one for PReP boot and other for root and
installs grub-ieee1275.

Change-Id: I4675ef2b82aa69b63e63a1cc7db01b0c0e6f9fff
Closes-Bug: 1418739
2015-02-06 03:39:36 +05:30

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#!/bin/bash
set -eu
set -o pipefail
source $_LIB/die
[ -n "$IMAGE_BLOCK_DEVICE" ] || die "Image block device not set"
# Create 2 partitions for PPC, one for PReP boot and other for root
if [[ "$ARCH" =~ "ppc" ]] ; then
sudo sfdisk --force $IMAGE_BLOCK_DEVICE << EOF
0,8,41 *
,,L
;
EOF
else
# Create 1 partition far enough up the disk to permit grub to be installed on
# the MBR.
sudo sfdisk $IMAGE_BLOCK_DEVICE << EOF
1 - - *
0 0;
0 0;
0 0;
EOF
fi
sudo partprobe $IMAGE_BLOCK_DEVICE
# To ensure no race conditions exist from calling partprobe
sudo udevadm settle
# If the partition isn't under /dev/loop*p1, create it with kpartx
DM=
if [ ! -e "${IMAGE_BLOCK_DEVICE}p1" ]; then
DM=${IMAGE_BLOCK_DEVICE/#\/dev/\/dev\/mapper}
# If running inside Docker, make our nodes manually, because udev will not be working.
if [ -f /.dockerenv ]; then
# kpartx cannot run in sync mode in docker.
sudo kpartx -av $TMP_IMAGE_PATH
sudo dmsetup --noudevsync mknodes
else
sudo kpartx -asv $TMP_IMAGE_PATH
fi
elif [[ "$ARCH" =~ "ppc" ]]; then
sudo kpartx -asv $TMP_IMAGE_PATH
fi
if [ -n "$DM" ]; then
echo "IMAGE_BLOCK_DEVICE=${DM}p1"
elif [[ "$ARCH" =~ "ppc" ]]; then
DM=${IMAGE_BLOCK_DEVICE/#\/dev/\/dev\/mapper}
echo "IMAGE_BLOCK_DEVICE=${DM}p2"
else
echo "IMAGE_BLOCK_DEVICE=${IMAGE_BLOCK_DEVICE}p1"
fi