diff options
Diffstat (limited to 'util/grub.d/20_linux_xen.in')
| -rw-r--r-- | util/grub.d/20_linux_xen.in | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in new file mode 100644 index 0000000..a900760 --- /dev/null +++ b/util/grub.d/20_linux_xen.in @@ -0,0 +1,174 @@ +#! /bin/sh +set -e + +# grub-mkconfig helper script. +# Copyright (C) 2006,2007,2008,2009,2010 Free Software Foundation, Inc. +# +# GRUB is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# GRUB is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GRUB. If not, see <http://www.gnu.org/licenses/>. + +prefix=@prefix@ +exec_prefix=@exec_prefix@ +bindir=@bindir@ +libdir=@libdir@ +. ${libdir}/grub/grub-mkconfig_lib + +export TEXTDOMAIN=@PACKAGE@ +export TEXTDOMAINDIR=@localedir@ + +CLASS="--class gnu-linux --class gnu --class os --class xen" + +if [ "x${GRUB_DISTRIBUTOR}" = "x" ] ; then + OS=GNU/Linux +else + OS="${GRUB_DISTRIBUTOR} GNU/Linux" + CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr 'A-Z' 'a-z' | cut -d' ' -f1) ${CLASS}" +fi + +# loop-AES arranges things so that /dev/loop/X can be our root device, but +# the initrds that Linux uses don't like that. +case ${GRUB_DEVICE} in + /dev/loop/*|/dev/loop[0-9]) + GRUB_DEVICE=`losetup ${GRUB_DEVICE} | sed -e "s/^[^(]*(\([^)]\+\)).*/\1/"` + ;; +esac + +if [ "x${GRUB_DEVICE_UUID}" = "x" ] || [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ] \ + || ! test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" \ + || uses_abstraction "${GRUB_DEVICE}" lvm; then + LINUX_ROOT_DEVICE=${GRUB_DEVICE} +else + LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID} +fi + +if [ "x`${grub_probe} --device ${GRUB_DEVICE} --target=fs 2>/dev/null || true`" = xbtrfs ]; then + rootsubvol="`make_system_path_relative_to_its_root /`" + rootsubvol="${rootsubvol#/}" + if [ "x${rootsubvol}" != x ]; then + GRUB_CMDLINE_LINUX="rootflags=subvol=${rootsubvol} ${GRUB_CMDLINE_LINUX}" + fi +fi + +linux_entry () +{ + os="$1" + version="$2" + xen_version="$3" + recovery="$4" + args="$5" + xen_args="$6" + if ${recovery} ; then + title="$(gettext_quoted "%s, with Xen %s and Linux %s (recovery mode)")" + else + title="$(gettext_quoted "%s, with Xen %s and Linux %s")" + fi + printf "menuentry '${title}' ${CLASS} {\n" "${os}" "${xen_version}" "${version}" + if ! ${recovery} ; then + save_default_entry | sed -e "s/^/\t/" + fi + + if [ -z "${prepare_boot_cache}" ]; then + prepare_boot_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | sed -e "s/^/\t/")" + fi + printf '%s\n' "${prepare_boot_cache}" + xmessage="$(gettext_printf "Loading Xen %s ..." ${xen_version})" + lmessage="$(gettext_printf "Loading Linux %s ..." ${version})" + cat << EOF + echo '$xmessage' + multiboot ${rel_xen_dirname}/${xen_basename} placeholder ${xen_args} + echo '$lmessage' + module ${rel_dirname}/${basename} placeholder root=${linux_root_device_thisversion} ro ${args} +EOF + if test -n "${initrd}" ; then + message="$(gettext_printf "Loading initial ramdisk ...")" + cat << EOF + echo '$message' + module ${rel_dirname}/${initrd} +EOF + fi + cat << EOF +} +EOF +} + +linux_list=`for i in /boot/vmlinu[xz]-* /vmlinu[xz]-* /boot/kernel-*; do + if grub_file_is_not_garbage "$i"; then + basename=$(basename $i) + version=$(echo $basename | sed -e "s,^[^0-9]*-,,g") + dirname=$(dirname $i) + config= + for j in "${dirname}/config-${version}" "${dirname}/config-${alt_version}" "/etc/kernels/kernel-config-${version}" ; do + if test -e "${j}" ; then + config="${j}" + break + fi + done + if (grep -qx "CONFIG_XEN_DOM0=y" "${config}" 2> /dev/null || grep -qx "CONFIG_XEN_PRIVILEGED_GUEST=y" "${config}" 2> /dev/null); then echo -n "$i " ; fi + fi + done` +if [ "x${linux_list}" = "x" ] ; then + exit 0 +fi +xen_list=`for i in /boot/xen*; do + if grub_file_is_not_garbage "$i" ; then echo -n "$i " ; fi + done` +prepare_boot_cache= + +while [ "x${xen_list}" != "x" ] ; do + list="${linux_list}" + current_xen=`version_find_latest $xen_list` + xen_basename=`basename ${current_xen}` + xen_dirname=`dirname ${current_xen}` + rel_xen_dirname=`make_system_path_relative_to_its_root $xen_dirname` + xen_version=`echo $xen_basename | sed -e "s,.gz$,,g;s,^xen-,,g"` + echo "submenu \"Xen ${xen_version}\" {" + while [ "x$list" != "x" ] ; do + linux=`version_find_latest $list` + echo "Found linux image: $linux" >&2 + basename=`basename $linux` + dirname=`dirname $linux` + rel_dirname=`make_system_path_relative_to_its_root $dirname` + version=`echo $basename | sed -e "s,^[^0-9]*-,,g"` + alt_version=`echo $version | sed -e "s,\.old$,,g"` + linux_root_device_thisversion="${LINUX_ROOT_DEVICE}" + + initrd= + for i in "initrd.img-${version}" "initrd-${version}.img" \ + "initrd-${version}" "initrd.img-${alt_version}" \ + "initrd-${alt_version}.img" "initrd-${alt_version}" \ + "initramfs-genkernel-${version}" \ + "initramfs-genkernel-${alt_version}" ; do + if test -e "${dirname}/${i}" ; then + initrd="$i" + break + fi + done + if test -n "${initrd}" ; then + echo "Found initrd image: ${dirname}/${initrd}" >&2 + else + # "UUID=" magic is parsed by initrds. Since there's no initrd, it can't work here. + linux_root_device_thisversion=${GRUB_DEVICE} + fi + + linux_entry "${OS}" "${version}" "${xen_version}" false \ + "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}" "${GRUB_CMDLINE_XEN} ${GRUB_CMDLINE_XEN_DEFAULT}" + if [ "x${GRUB_DISABLE_RECOVERY}" != "xtrue" ]; then + linux_entry "${OS}" "${version}" "${xen_version}" true \ + "single ${GRUB_CMDLINE_LINUX}" "${GRUB_CMDLINE_XEN}" + fi + + list=`echo $list | tr ' ' '\n' | grep -vx $linux | tr '\n' ' '` + done + echo "}" + xen_list=`echo $xen_list | tr ' ' '\n' | grep -vx $current_xen | tr '\n' ' '` +done |