root / example / hooks / grub @ c40fd6ae
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#!/bin/bash |
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# Copyright (C) 2010 Oregon State University |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, but |
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# WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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# General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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# 02110-1301, USA. |
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# |
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# This is an example script that configures, grub after installation. This |
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# script assumes that grub has been installed onto the image already and a |
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# working grub.conf exists. This is only enabled if using the tarball image |
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# type. |
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|
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set -e |
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|
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. common.sh |
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|
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debug set -x |
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|
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CLEANUP=( ) |
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|
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trap cleanup EXIT |
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|
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if [ -z "${TARGET}" -o ! -d "${TARGET}" ] ; then |
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log_error "Missing target directory" |
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exit 1 |
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fi |
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|
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# Set disk based on type of hypervisor |
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disk="" |
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if [ "${HYPERVISOR}" = "kvm" ] ; then |
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disk="vda" |
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else |
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disk="xda" |
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fi |
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|
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boot_dir="${TARGET}/boot/grub" |
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|
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setup_disk_devs() { |
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root_part="${ROOT_DEV/*-/}" |
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boot_part="${BOOT_DEV/*-/}" |
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|
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mknod ${TARGET}/dev/${disk} b $(stat -L -c "0x%t 0x%T" $BLOCKDEV) |
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CLEANUP+=("rm -f ${TARGET}/dev/$disk") |
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|
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mknod ${TARGET}/dev/${disk}${root_part} b $(stat -L -c "0x%t 0x%T" $ROOT_DEV) |
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CLEANUP+=("rm -f ${TARGET}/dev/${disk}${root_part}") |
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|
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if [ -n "$BOOT_DEV" ] ; then |
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mknod ${TARGET}/dev/${disk}${boot_part} b $(stat -L -c "0x%t 0x%T" $BOOT_DEV) |
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CLEANUP+=("rm -f ${TARGET}/dev/${disk}${boot_part}") |
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fi |
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|
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# setup minimal proc environment for grub2 |
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$MKDIR_P ${TARGET}/proc/ |
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cat > ${TARGET}/proc/mounts <<EOF |
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/dev/${disk}${boot_part} /boot ${FILESYSTEM} rw,relatime,barrier=1,data=ordered 0 0 |
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/dev/${disk}${root_part} / ${FILESYSTEM} rw,relatime,barrier=1,data=ordered 0 0 |
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EOF |
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CLEANUP+=("rm -r ${TARGET}/proc/mounts") |
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|
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cat > ${TARGET}/proc/devices <<EOF |
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Block devices: |
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251 virtblk |
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252 device-mapper |
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EOF |
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CLEANUP+=("rm -r ${TARGET}/proc/devices") |
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cat > ${TARGET}/proc/misc << EOF |
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60 device-mapper |
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EOF |
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CLEANUP+=("rm -r ${TARGET}/proc/misc") |
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} |
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|
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add_devicemap() { |
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cat > "${TARGET}/boot/grub/device.map" <<EOF |
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(hd0) /dev/${disk} |
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EOF |
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} |
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|
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if [ "${IMAGE_TYPE}" != "qemu" ] && \ |
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[ -z "${INSTANCE_HV_kernel_path}" -o "${IMPORT_SCRIPT}" = "1" ] ; then |
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setup_disk_devs |
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add_devicemap |
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|
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if [ -e "${boot_dir}/menu.lst" ] ; then |
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# install grub to the block device |
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chroot ${TARGET} grub --batch --no-floppy \ |
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--device-map=/boot/grub/device.map <<EOF |
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root (hd0,0) |
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setup (hd0) |
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quit |
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EOF |
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# check to see if grub is using UUID's and replace if so |
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if [ -n "$(grep 'root=UUID' ${boot_dir}/menu.lst)" ] ; then |
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root_uuid="$($VOL_ID $ROOT_DEV)" |
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sed --follow-symlinks -ie "s/\(root=UUID=\)\([a-z0-9-]*\)/\1${root_uuid}/g" \ |
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${boot_dir}/menu.lst |
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fi |
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# additional kernel arguments for the instance |
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if [ -n "${KERNEL_ARGS}" ] ; then |
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sed --follow-symlinks -ie "s/\(.*kernel.*\)/\1 ${KERNEL_ARGS}/g" \ |
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${boot_dir}/menu.lst |
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fi |
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elif [ -e "${boot_dir}/grub.cfg" -a -e "${TARGET}/etc/default/grub" ] ; then |
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echo "grub2 support is partially supported" |
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echo "please run update-grub after the instance is online" |
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# check to see if grub is using UUID's and replace if so |
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if [ -n "$(grep 'root=UUID' ${boot_dir}/grub.cfg)" ] ; then |
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root_uuid="$($VOL_ID $ROOT_DEV)" |
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sed --follow-symlinks -ie "s/\(root=UUID=\)\([a-z0-9-]*\)/\1${root_uuid}/g" \ |
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${boot_dir}/grub.cfg |
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fi |
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# additional kernel arguments for the instance |
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if [ -n "${KERNEL_ARGS}" ] ; then |
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sed -ie "s/.*GRUB_CMDLINE_LINUX=\"\(.*\)\"/GRUB_CMDLINE_LINUX=\"\1 ${KERNEL_ARGS}\"/" \ |
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${TARGET}/etc/default/grub |
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fi |
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# show the menu countdown in case we want to boot to a different kernel |
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sed -ie 's/.*GRUB_HIDDEN_TIMEOUT=.*/GRUB_HIDDEN_TIMEOUT=5/' ${TARGET}/etc/default/grub |
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sed -ie 's/.*GRUB_HIDDEN_TIMEOUT_QUIET=.*/GRUB_HIDDEN_TIMEOUT_QUIET=false/' ${TARGET}/etc/default/grub |
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# install grub2 MBR |
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chroot ${TARGET} grub-setup --force --device-map=/boot/grub/device.map \ |
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--directory=/boot/grub --root-device="(hd0,1)" "(hd0)" |
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fi |
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fi |
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|
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# setup serial console |
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if [ "${INSTANCE_HV_serial_console}" = "True" ] ; then |
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if [ ! -e ${TARGET}/dev/${disk} ] ; then |
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setup_disk_devs |
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fi |
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if [ -e "${boot_dir}/menu.lst" ] ; then |
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# grub 0.x |
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sed --follow-symlinks -ie 's/^default.*/default 0\n\nserial --unit=0\nterminal --timeout=3 console serial/' \ |
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${boot_dir}/menu.lst |
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sed --follow-symlinks -ie 's/\(.*kernel.*\)/\1 console=ttyS0,115200n8/g' \ |
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${boot_dir}/menu.lst |
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elif [ -e "${boot_dir}/grub.cfg" -a -e "${TARGET}/etc/default/grub" ] ; then |
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# grub 2.x |
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add_devicemap |
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sed -ie 's/.*GRUB_TERMINAL.*/GRUB_TERMINAL=serial/' ${TARGET}/etc/default/grub |
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sed -ie 's/.*GRUB_CMDLINE_LINUX=\"\(.*\)\"/GRUB_CMDLINE_LINUX=\"\1 console=ttyS0,115200n8\"/' \ |
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${TARGET}/etc/default/grub |
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echo "GRUB_SERIAL_COMMAND=\"serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1\"" \ |
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>> ${TARGET}/etc/default/grub |
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else |
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echo "No grub bootloader found, skipping..." |
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fi |
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fi |
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|
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# execute cleanups |
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cleanup |
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trap - EXIT |
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|
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exit 0 |