+++ /dev/null
-#!/bin/sh -e
-
-# Copyright (c) 2016 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# Note: In order to limit the damage this script can do, it is recommended
-# to NOT run as root.
-
-#
-# 1. Download buildroot
-# 2. Build buildroot kernel and root file system as per
-# config files included in this package
-# 3. Create empty disk image and extract buildroot root
-# file system onto it, make it bootable
-# 4. Apply any patches/additions included in this package
-#
-BUILD_DIR="$(dirname $0)/build"
-
-BUILDROOT_NAME='buildroot-2017.05.2'
-BUILDROOT_DIR="${BUILD_DIR}/${BUILDROOT_NAME}"
-BUILDROOT_TARBALL="${BUILDROOT_NAME}.tar.gz"
-BUILDROOT_URL="https://buildroot.org/downloads/${BUILDROOT_TARBALL}"
-BUILDROOT_OUTPUT="${BUILDROOT_DIR}/output/images/rootfs.tar"
-
-DISK_FREE_SIZE=8388608 # Min. free space on disk (8 MB)
-DISK_ROUND_TO_NEAREST=16777216 # Round disk size up to nearest (16 MB)
-
-VERSION=$(cat $(dirname $0)/CHANGELOG | grep '^## ' | head -1 | sed -e 's/.*\[\(.*\)\].*/\1/')
-if [ "${VERSION}" = "" ]
-then
- echo "Unable to determine build version from CHANGELOG file. Make sure"
- echo "that there is an entry for the most recent version in CHANGELOG,"
- echo "and that the entry is formated like"
- echo
- echo "## [1.0] - 2016-05-16"
- exit 1
-fi
-
-mkdir -p ${BUILD_DIR}
-
-echo Building version: ${VERSION}
-echo $VERSION > ${BUILD_DIR}/VERSION
-echo "NESTED_VERSION=${VERSION}" > ${BUILD_DIR}/VERSION_HIDDEN
-img_name="${BUILD_DIR}/csit-nested-${VERSION}.img"
-
-# Normally no need to touch the variables below
-DISK_SECT_SIZE=512
-DISK_HEADS=16
-DISK_SECT_PER_TRACK=63
-DISK_RESERVED_SECTORS=2048
-
-MOUNT_TMPDIR="${BUILD_DIR}/tmp-mount"
-
-set -e
-
-# Download buildroot if not already there
-wget -P ${BUILD_DIR} -N $BUILDROOT_URL
-tar -C ${BUILD_DIR} -xzf ${BUILD_DIR}/$BUILDROOT_TARBALL
-
-# Apply DPDK patch to buildroot. Do not fail if this patch has already been applied.
-patch -N -d ${BUILDROOT_DIR} -p1 < buildroot-patches/dpdk.patch || /bin/true
-
-cp -p buildroot-config $BUILDROOT_DIR/.config
-cp -p kernel-defconfig $BUILDROOT_DIR/kernel-defconfig
-make -C $BUILDROOT_DIR
-
-if [ ! -f ${BUILDROOT_OUTPUT} ]
-then
- echo "Buildroot compiled OK, but root file system ${BUILDROOT_OUTPUT}"
- echo "does not exist. Somethig is wrong. Exiting."
- exit 1
-fi
-
-# If we got here, it means we downloaded (if applicable) and built (if
-# applicable) buildroot OK.
-#
-# Now let's calculate the required disk size, and build an empty disk.
-
-buildroot_size=$(stat -c%s ${BUILDROOT_OUTPUT})
-desired_size=$(( ${buildroot_size} + ${DISK_FREE_SIZE} ))
-rounded_size=$(( ((${desired_size}/${DISK_ROUND_TO_NEAREST})+1) * \
- ${DISK_ROUND_TO_NEAREST} ))
-
-echo "Actual root FS size: ${buildroot_size}"
-echo "Root FS size + desired free space (${DISK_FREE_SIZE}): ${desired_size}"
-echo "Root FS size rounded to nearest ${DISK_ROUND_TO_NEAREST}:" \
- "${rounded_size} ($(( ${rounded_size} / 1024 / 1024 )) MB)"
-
-# In a normal world, we'd be creating a full-size empty image with "dd", an
-# then use fdisk to partition it, and a tool like "kpartx" to map this into
-# individual partitions. We'd then map the partition we're interested in.
-# However, in order to avoid messing with /dev/mapper, we can also create
-# our actual partition first, and then merge it with the MBR+partition table
-# "prefix" to obtain our full disk.
-
-sectors=$(( ${rounded_size} / ${DISK_SECT_SIZE} ))
-
-disk_prefix=${img_name}.prefix
-disk_main=${img_name}.main
-
-dd if=/dev/zero of=${disk_prefix} bs=${DISK_SECT_SIZE} \
- count=${DISK_RESERVED_SECTORS}
-dd if=/dev/zero of=${disk_main} bs=${DISK_SECT_SIZE} \
- count=$(( $sectors - ${DISK_RESERVED_SECTORS} ))
-
-# Format and mount the root file system
-mkfs.ext2 -F -L root ${disk_main}
-mkdir -p ${MOUNT_TMPDIR}
-sudo mount -o loop ${disk_main} ${MOUNT_TMPDIR}
-trap "sudo umount ${MOUNT_TMPDIR}" EXIT
-
-# Extract the root filesystem
-echo "Extracting root filesystem..."
-sudo tar -C ${MOUNT_TMPDIR} -xf ${BUILDROOT_OUTPUT}
-
-# Apply any patches
-echo "Applying patches/modifications"
-mydir=$(pwd)
-cd ${MOUNT_TMPDIR}
-sudo run-parts -v ${mydir}/image-patches
-cd ${mydir}
-
-# Copy version and changelog
-sudo cp ${BUILD_DIR}/VERSION ${MOUNT_TMPDIR}/
-sudo cp ${mydir}/CHANGELOG ${MOUNT_TMPDIR}/
-# Also embed this into a hidden file that we can easily retrieve with
-# "cat <disk image> | strings | grep NESTED_VERSION"
-sudo cp ${BUILD_DIR}/VERSION_HIDDEN ${MOUNT_TMPDIR}/.VERSION.HIDDEN
-
-# Unmount root filesystem
-sudo umount ${MOUNT_TMPDIR}
-trap EXIT
-rmdir ${MOUNT_TMPDIR}
-
-# Now create our larger disk
-cat ${disk_prefix} ${disk_main} > ${img_name}
-rm -f ${disk_prefix} ${disk_main}
-
-# Create partition table on the disk
-sed -e 's/\s*\([\+0-9a-zA-Z]*\).*/\1/' << _EOF | fdisk -H ${DISK_HEADS} -S ${DISK_SECT_PER_TRACK} ${img_name}
- o # clear the in memory partition table
- n # new partition
- p # primary partition
- 1 # partition number 1
- ${DISK_RESERVED_SECTORS} # Start a few KB into the disk, leave room for GRUB
- # Default - all the way through the end of the disk
- a # make a partition bootable
- 1 # bootable partition is partition 1
- p # print the in-memory partition table
- w # write the partition table
- q # and we're done
-_EOF
-
-disk_cylinders=$(fdisk -l -H ${DISK_HEADS} -S ${DISK_SECT_PER_TRACK} ${img_name} | \
- grep cylinders | \
- sed -e 's/.* \([0-9][0-9]*\) cylinders.*/\1/')
-
-echo "Disk has ${disk_cylinders} cylinders"
-
-# Install GRUB bootloader on the disk image
-${BUILDROOT_DIR}/output/host/sbin/grub --device-map=/dev/null <<_EOF
-device (hd0) ${img_name}
-geometry (hd0)
-root (hd0,0)
-setup (hd0)
-quit
-_EOF
-
-echo
-echo
-echo
-echo "Your image should be ready in:"
-ls -l ${img_name}
Code Review / csit.git / blobdiff