Hi, after some time searching for a script usable to handle xen in grub2, I have wrote some code (based on patches from debian bug #505517 [1] and /etc/grub.d/10_linux) that can be used without modify grub2.
These file are to be installed as /etc/grub.d/09_xen and /etc/xen/grub.conf I hope this helps. Kind regards, Marco [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=505517 -- --------------------------------------------------------------------- | Marco Nenciarini | Debian/GNU Linux Developer - Plug Member | | mnen...@prato.linux.it | http://www.prato.linux.it/~mnencia | --------------------------------------------------------------------- Key fingerprint = FED9 69C7 9E67 21F5 7D95 5270 6864 730D F095 E5E4
#! /bin/sh -e
if [ -f /usr/lib/grub/grub-mkconfig_lib ]; then
. /usr/lib/grub/grub-mkconfig_lib
else
# no grub file, so we notify and exit gracefully
echo "Cannot find grub config file, exiting." >&2
exit 0
fi
XEN_HYPERVISOR_CMDLINE=
XEN_LINUX_CMDLINE="console=tty0"
[ -r /etc/xen/grub.conf ] && . /etc/xen/grub.conf
CLASS="--class gnu-linux --class gnu --class os"
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}" \
|| [ "`grub-probe -t abstraction --device ${GRUB_DEVICE} | sed -e
's,.*\(lvm\).*,\1,'`" = "lvm" ] ; then
LINUX_ROOT_DEVICE=${GRUB_DEVICE}
else
LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID}
fi
xen_entry ()
{
os="$1"
xen_version="$2"
version="$3"
xen_args="$4"
args="$5"
printf "menuentry 'Xen %s / %s, with Linux %s' --class xen ${CLASS} {\n"
"${xen_version}" "${os}" "${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 "Loading Xen %s ..." ${xen_version})'
multiboot ${rel_dirname}/${xen_basename}
${rel_dirname}/${xen_basename} ${xen_args}
echo $(printf "$(gettext "Loading Linux %s ...")" ${version})
module ${rel_dirname}/${basename} ${rel_dirname}/${basename}
root=${linux_root_device_thisversion} ro ${args}
EOF
if test -n "${initrd}" ; then
cat << EOF
echo "Loading initial ramdisk ..."
module ${rel_dirname}/${initrd}
EOF
fi
cat << EOF
}
EOF
}
xen_list=`for i in /boot/xen-*.gz /xen-*.gz ; do
if grub_file_is_not_garbage "$i" ; then echo -n "$i "; fi
done`
prepare_boot_cache=
while [ "x$xen_list" != "x" ] ; do
xen=`version_find_latest $xen_list`
echo "Found Xen hypervisor image: $xen" >&2
xen_basename=`basename $xen`
xen_dirname=`dirname $xen`
rel_xen_dirname=`make_system_path_relative_to_its_root $xen_dirname`
xen_version=`echo $xen_basename | sed -e "s,^[^0-9]*-,,g" | sed -e "s,.gz,,g"`
alt_xen_version=`echo $xen_version | sed -e "s,\.old$,,g"`
xen_configfiles=`grep -l 'CONFIG_XEN_PRIVILEGED_GUEST=y' /boot/config-*`
for i in $xen_configfiles ; do
i=`echo $i | sed -e "s,/boot/config-,/boot/vmlinuz-,g"`;
if grub_file_is_not_garbage "$i"; then
list="$list $i";
fi
done
while [ "x$list" != "x" ] ; do
linux=`version_find_latest $list`
echo "\tFound 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 "\tFound 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=${GRUB_DEVICE}
fi
xen_entry "${OS}" "${xen_version}" "${version}" \
"${XEN_HYPERVISOR_CMDLINE}" \
"${XEN_LINUX_CMDLINE}"
list=`echo $list | tr ' ' '\n' | grep -vx $linux | tr '\n' ' '`
done
xen_list=`echo $xen_list | tr ' ' '\n' | grep -vx $xen | tr '\n' ' '`
done
# This configuration file defines the command line of autogenerated
# xen's entries in grub2
#
# If you don't use grub or you only use grub1, you can safely ignore
# this file.
#
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
XEN_HYPERVISOR_CMDLINE=""
XEN_LINUX_CMDLINE="console=tty0 ${GRUB_CMDLINE_LINUX}
${GRUB_CMDLINE_LINUX_DEFAULT}"
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