From 19dcc4908662fcdaa1a69ccbb8b5b2bf7d481f2f Mon Sep 17 00:00:00 2001 From: Vladimir 'phcoder' Serbinenko Date: Fri, 21 May 2010 19:45:14 +0200 Subject: [PATCH] xen configuration preliminary support based on enhanced version of a kludge I use --- conf/common.rmk | 3 + util/grub-mkconfig.in | 2 + util/grub.d/20_linux_xen.in | 139 ++++++++++++++++++++++++++++++++++++ 3 files changed, 144 insertions(+) create mode 100644 util/grub.d/20_linux_xen.in diff --git a/conf/common.rmk b/conf/common.rmk index beee25be9..641a2c62a 100644 --- a/conf/common.rmk +++ b/conf/common.rmk @@ -219,6 +219,9 @@ grub-mkconfig_SCRIPTS = 00_header 30_os-prober 40_custom ifneq (, $(host_kernel)) grub-mkconfig_SCRIPTS += 10_$(host_kernel) endif +ifeq (linux, $(host_kernel)) +grub-mkconfig_SCRIPTS += 20_linux_xen +endif CLEANFILES += $(grub-mkconfig_SCRIPTS) diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in index 85212f8fc..17b7f7e38 100644 --- a/util/grub-mkconfig.in +++ b/util/grub-mkconfig.in @@ -239,6 +239,8 @@ export GRUB_DEFAULT \ GRUB_DISTRIBUTOR \ GRUB_CMDLINE_LINUX \ GRUB_CMDLINE_LINUX_DEFAULT \ + GRUB_CMDLINE_XEN \ + GRUB_CMDLINE_XEN_DEFAULT \ GRUB_CMDLINE_NETBSD \ GRUB_CMDLINE_NETBSD_DEFAULT \ GRUB_TERMINAL_INPUT \ diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in new file mode 100644 index 000000000..862f43888 --- /dev/null +++ b/util/grub.d/20_linux_xen.in @@ -0,0 +1,139 @@ +#! /bin/sh -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 . + +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/${GRUB_DEVICE_UUID}" ; then + LINUX_ROOT_DEVICE=${GRUB_DEVICE} +else + LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID} +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 Linux %s and XEN %s (recovery mode)")" + else + title="$(gettext_quoted "%s, with Linux %s and XEN %s")" + fi + printf "menuentry '${title}' ${CLASS} {\n" "${os}" "${version}" "${xen_version}" + save_default_entry | sed -e "s/^/\t/" + + 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}" + cat << EOF + echo '$(printf "$(gettext_quoted "Loading Linux %s ...")" ${version})' + multiboot ${rel_xen_dirname}/${xen_basename} placeholder ${xen_args} + module ${rel_dirname}/${basename} placeholder root=${linux_root_device_thisversion} ro ${args} +EOF + if test -n "${initrd}" ; then + cat << EOF + echo '$(gettext_quoted "Loading initial ramdisk ...")' + module ${rel_dirname}/${initrd} +EOF + fi + cat << EOF +} +EOF +} + +linux_list=`for i in /boot/vmlinu[xz]-*jeremy* /vmlinu[xz]-*jeremy* ; do + if grub_file_is_not_garbage "$i" ; then echo -n "$i " ; fi + done` +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"` + 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-${alt_version}"; do + if test -e "${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_LINUX_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 + xen_list=`echo $xen_list | tr ' ' '\n' | grep -vx $current_xen | tr '\n' ' '` +done