util/grub.d/20_linux_xen.in

   1 #! /bin/sh
   2 set -e
   3
   4 # grub-mkconfig helper script.
   5 # Copyright (C) 2006,2007,2008,2009,2010  Free Software Foundation, Inc.
   6 #
   7 # GRUB is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # GRUB is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 prefix="@prefix@"
  21 exec_prefix="@exec_prefix@"
  22 datarootdir="@datarootdir@"
  23
  24 . "$pkgdatadir/grub-mkconfig_lib"
  25
  26 export TEXTDOMAIN=@PACKAGE@
  27 export TEXTDOMAINDIR="@localedir@"
  28
  29 CLASS="--class gnu-linux --class gnu --class os --class xen"
  30
  31 if [ "x${GRUB_DISTRIBUTOR}" = "x" ] ; then
  32   OS=GNU/Linux
  33 else
  34   OS="${GRUB_DISTRIBUTOR} GNU/Linux"
  35   CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr 'A-Z' 'a-z' | cut -d' ' -f1|LC_ALL=C sed 's,[^[:alnum:]_],_,g') ${CLASS}"
  36 fi
  37
  38 # loop-AES arranges things so that /dev/loop/X can be our root device, but
  39 # the initrds that Linux uses don't like that.
  40 case ${GRUB_DEVICE} in
  41   /dev/loop/*|/dev/loop[0-9])
  42     GRUB_DEVICE=`losetup ${GRUB_DEVICE} | sed -e "s/^[^(]*(\([^)]\+\)).*/\1/"`
  43   ;;
  44 esac
  45
  46 # btrfs may reside on multiple devices. We cannot pass them as value of root= parameter
  47 # and mounting btrfs requires user space scanning, so force UUID in this case.
  48 if [ "x${GRUB_DEVICE_UUID}" = "x" ] || [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ] \
  49     || ! test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" \
  50     || ( test -e "${GRUB_DEVICE}" && uses_abstraction "${GRUB_DEVICE}" lvm ); then
  51   LINUX_ROOT_DEVICE=${GRUB_DEVICE}
  52 else
  53   LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID}
  54 fi
  55
  56 # Allow overriding GRUB_CMDLINE_LINUX and GRUB_CMDLINE_LINUX_DEFAULT.
  57 if [ "${GRUB_CMDLINE_LINUX_XEN_REPLACE}" ]; then
  58   GRUB_CMDLINE_LINUX="${GRUB_CMDLINE_LINUX_XEN_REPLACE}"
  59 fi
  60 if [ "${GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT}" ]; then
  61   GRUB_CMDLINE_LINUX_DEFAULT="${GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT}"
  62 fi
  63
  64 case x"$GRUB_FS" in
  65     xbtrfs)
  66         rootsubvol="`make_system_path_relative_to_its_root /`"
  67         rootsubvol="${rootsubvol#/}"
  68         if [ "x${rootsubvol}" != x ]; then
  69             GRUB_CMDLINE_LINUX="rootflags=subvol=${rootsubvol} ${GRUB_CMDLINE_LINUX}"
  70         fi;;
  71     xzfs)
  72         rpool=`${grub_probe} --device ${GRUB_DEVICE} --target=fs_label 2>/dev/null || true`
  73         bootfs="`make_system_path_relative_to_its_root / | sed -e "s,@$,,"`"
  74         LINUX_ROOT_DEVICE="ZFS=${rpool}${bootfs}"
  75         ;;
  76 esac
  77
  78 title_correction_code=
  79
  80 linux_entry ()
  81 {
  82   os="$1"
  83   version="$2"
  84   xen_version="$3"
  85   type="$4"
  86   args="$5"
  87   xen_args="$6"
  88   if [ -z "$boot_device_id" ]; then
  89       boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")"
  90   fi
  91   if [ x$type != xsimple ] ; then
  92       if [ x$type = xrecovery ] ; then
  93           title="$(gettext_printf "%s, with Xen %s and Linux %s (recovery mode)" "${os}" "${xen_version}" "${version}")"
  94       else
  95           title="$(gettext_printf "%s, with Xen %s and Linux %s" "${os}" "${xen_version}" "${version}")"
  96       fi
  97       replacement_title="$(echo "Advanced options for ${OS}" | sed 's,>,>>,g')>$(echo "$title" | sed 's,>,>>,g')"
  98       if [ x"Xen ${xen_version}>$title" = x"$GRUB_ACTUAL_DEFAULT" ]; then
  99          quoted="$(echo "$GRUB_ACTUAL_DEFAULT" | grub_quote)"
 100          title_correction_code="${title_correction_code}if [ \"x\$default\" = '$quoted' ]; then default='$(echo "$replacement_title" | grub_quote)'; fi;"
 101          grub_warn "$(gettext_printf "Please don't use old title \`%s' for GRUB_DEFAULT, use \`%s' (for versions before 2.00) or \`%s' (for 2.00 or later)" "$GRUB_ACTUAL_DEFAULT" "$replacement_title" "gnulinux-advanced-$boot_device_id>gnulinux-$version-$type-$boot_device_id")"
 102       fi
 103       echo "menuentry '$(echo "$title" | grub_quote)' ${CLASS} \$menuentry_id_option 'xen-gnulinux-$version-$type-$boot_device_id' {" | sed "s/^/$submenu_indentation/"
 104   else
 105       title="$(gettext_printf "%s, with Xen hypervisor" "${os}")"
 106       echo "menuentry '$(echo "$title" | grub_quote)' ${CLASS} \$menuentry_id_option 'xen-gnulinux-simple-$boot_device_id' {" | sed "s/^/$submenu_indentation/"
 107   fi
 108   if [ x$type != xrecovery ] ; then
 109       save_default_entry | grub_add_tab | sed "s/^/$submenu_indentation/"
 110   fi
 111
 112   if [ -z "${prepare_boot_cache}" ]; then
 113     prepare_boot_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | grub_add_tab)"
 114   fi
 115   printf '%s\n' "${prepare_boot_cache}" | sed "s/^/$submenu_indentation/"
 116   xmessage="$(gettext_printf "Loading Xen %s ..." ${xen_version})"
 117   lmessage="$(gettext_printf "Loading Linux %s ..." ${version})"
 118   sed "s/^/$submenu_indentation/" << EOF
 119         echo    '$(echo "$xmessage" | grub_quote)'
 120         if [ "\$grub_platform" = "pc" -o "\$grub_platform" = "" ]; then
 121             xen_rm_opts=
 122         else
 123             xen_rm_opts="no-real-mode edd=off"
 124         fi
 125         multiboot       ${rel_xen_dirname}/${xen_basename} placeholder ${xen_args} \${xen_rm_opts}
 126         echo    '$(echo "$lmessage" | grub_quote)'
 127         module  ${rel_dirname}/${basename} placeholder root=${linux_root_device_thisversion} ro ${args}
 128 EOF
 129   if test -n "${initrd}" ; then
 130     # TRANSLATORS: ramdisk isn't identifier. Should be translated.
 131     message="$(gettext_printf "Loading initial ramdisk ...")"
 132     sed "s/^/$submenu_indentation/" << EOF
 133         echo    '$(echo "$message" | grub_quote)'
 134         module  --nounzip   ${rel_dirname}/${initrd}
 135 EOF
 136   fi
 137   sed "s/^/$submenu_indentation/" << EOF
 138 }
 139 EOF
 140 }
 141
 142 linux_list=
 143 for i in /boot/vmlinu[xz]-* /vmlinu[xz]-* /boot/kernel-*; do
 144     if grub_file_is_not_garbage "$i"; then
 145         basename=$(basename $i)
 146         version=$(echo $basename | sed -e "s,^[^0-9]*-,,g")
 147         dirname=$(dirname $i)
 148         config=
 149         for j in "${dirname}/config-${version}" "${dirname}/config-${alt_version}" "/etc/kernels/kernel-config-${version}" ; do
 150             if test -e "${j}" ; then
 151                 config="${j}"
 152                 break
 153             fi
 154         done
 155         if (grep -qx "CONFIG_XEN_DOM0=y" "${config}" 2> /dev/null || grep -qx "CONFIG_XEN_PRIVILEGED_GUEST=y" "${config}" 2> /dev/null); then linux_list="$linux_list $i" ; fi
 156     fi
 157 done
 158 if [ "x${linux_list}" = "x" ] ; then
 159     exit 0
 160 fi
 161
 162 file_is_not_sym () {
 163     case "$1" in
 164         */xen-syms-*)
 165             return 1;;
 166         *)
 167             return 0;;
 168     esac
 169 }
 170
 171 xen_list=
 172 for i in /boot/xen*; do
 173     if grub_file_is_not_garbage "$i" && file_is_not_sym "$i" ; then xen_list="$xen_list $i" ; fi
 174 done
 175 prepare_boot_cache=
 176 boot_device_id=
 177
 178 title_correction_code=
 179
 180 machine=`uname -m`
 181
 182 case "$machine" in
 183     i?86) GENKERNEL_ARCH="x86" ;;
 184     mips|mips64) GENKERNEL_ARCH="mips" ;;
 185     mipsel|mips64el) GENKERNEL_ARCH="mipsel" ;;
 186     arm*) GENKERNEL_ARCH="arm" ;;
 187     *) GENKERNEL_ARCH="$machine" ;;
 188 esac
 189
 190 # Extra indentation to add to menu entries in a submenu. We're not in a submenu
 191 # yet, so it's empty. In a submenu it will be equal to '\t' (one tab).
 192 submenu_indentation=""
 193
 194 is_top_level=true
 195
 196 while [ "x${xen_list}" != "x" ] ; do
 197     list="${linux_list}"
 198     current_xen=`version_find_latest $xen_list`
 199     xen_basename=`basename ${current_xen}`
 200     xen_dirname=`dirname ${current_xen}`
 201     rel_xen_dirname=`make_system_path_relative_to_its_root $xen_dirname`
 202     xen_version=`echo $xen_basename | sed -e "s,.gz$,,g;s,^xen-,,g"`
 203     if [ -z "$boot_device_id" ]; then
 204         boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")"
 205     fi
 206     if [ "x$is_top_level" != xtrue ]; then
 207         echo "  submenu '$(gettext_printf "Xen hypervisor, version %s" "${xen_version}" | grub_quote)' \$menuentry_id_option 'xen-hypervisor-$xen_version-$boot_device_id' {"
 208     fi
 209     while [ "x$list" != "x" ] ; do
 210         linux=`version_find_latest $list`
 211         gettext_printf "Found linux image: %s\n" "$linux" >&2
 212         basename=`basename $linux`
 213         dirname=`dirname $linux`
 214         rel_dirname=`make_system_path_relative_to_its_root $dirname`
 215         version=`echo $basename | sed -e "s,^[^0-9]*-,,g"`
 216         alt_version=`echo $version | sed -e "s,\.old$,,g"`
 217         linux_root_device_thisversion="${LINUX_ROOT_DEVICE}"
 218
 219         initrd=
 220         for i in "initrd.img-${version}" "initrd-${version}.img" "initrd-${version}.gz" \
 221            "initrd-${version}" "initramfs-${version}.img" \
 222            "initrd.img-${alt_version}" "initrd-${alt_version}.img" \
 223            "initrd-${alt_version}" "initramfs-${alt_version}.img" \
 224            "initramfs-genkernel-${version}" \
 225            "initramfs-genkernel-${alt_version}" \
 226            "initramfs-genkernel-${GENKERNEL_ARCH}-${version}" \
 227            "initramfs-genkernel-${GENKERNEL_ARCH}-${alt_version}" ; do
 228             if test -e "${dirname}/${i}" ; then
 229                 initrd="$i"
 230                 break
 231             fi
 232         done
 233         if test -n "${initrd}" ; then
 234             gettext_printf "Found initrd image: %s\n" "${dirname}/${initrd}" >&2
 235         else
 236     # "UUID=" magic is parsed by initrds.  Since there's no initrd, it can't work here.
 237             linux_root_device_thisversion=${GRUB_DEVICE}
 238         fi
 239
 240         if [ "x$is_top_level" = xtrue ] && [ "x${GRUB_DISABLE_SUBMENU}" != xy ]; then
 241             linux_entry "${OS}" "${version}" "${xen_version}" simple \
 242                 "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}" "${GRUB_CMDLINE_XEN} ${GRUB_CMDLINE_XEN_DEFAULT}"
 243
 244             submenu_indentation="$grub_tab$grub_tab"
 245
 246             if [ -z "$boot_device_id" ]; then
 247                 boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")"
 248             fi
 249             # TRANSLATORS: %s is replaced with an OS name
 250             echo "submenu '$(gettext_printf "Advanced options for %s (with Xen hypervisor)" "${OS}" | grub_quote)' \$menuentry_id_option 'gnulinux-advanced-$boot_device_id' {"
 251         echo "  submenu '$(gettext_printf "Xen hypervisor, version %s" "${xen_version}" | grub_quote)' \$menuentry_id_option 'xen-hypervisor-$xen_version-$boot_device_id' {"
 252            is_top_level=false
 253         fi
 254
 255         linux_entry "${OS}" "${version}" "${xen_version}" advanced \
 256             "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}" "${GRUB_CMDLINE_XEN} ${GRUB_CMDLINE_XEN_DEFAULT}"
 257         if [ "x${GRUB_DISABLE_RECOVERY}" != "xtrue" ]; then
 258             linux_entry "${OS}" "${version}" "${xen_version}" recovery \
 259                 "single ${GRUB_CMDLINE_LINUX}" "${GRUB_CMDLINE_XEN}"
 260         fi
 261
 262         list=`echo $list | tr ' ' '\n' | fgrep -vx "$linux" | tr '\n' ' '`
 263     done
 264     if [ x"$is_top_level" != xtrue ]; then
 265         echo '  }'
 266     fi
 267     xen_list=`echo $xen_list | tr ' ' '\n' | fgrep -vx "$current_xen" | tr '\n' ' '`
 268 done
 269
 270 # If at least one kernel was found, then we need to
 271 # add a closing '}' for the submenu command.
 272 if [ x"$is_top_level" != xtrue ]; then
 273   echo '}'
 274 fi
 275
 276 echo "$title_correction_code"