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|
#! /bin/sh -e
if [ -f /usr/share/grub/grub-mkconfig_lib ]; then
. /usr/share/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="xsave=1"
XEN_LINUX_CMDLINE="console=tty0"
[ -r /etc/xen/grub.conf ] && . /etc/xen/grub.conf
CLASS="--class gnu-linux --class gnu --class os"
if [ "x${GRUB_DISTRIBUTOR}" = "x" ] ; then
OS=GNU/Linux
else
if [ "${GRUB_DISTRIBUTOR}" = "Parabola" ] ; then
OS="${GRUB_DISTRIBUTOR} GNU/Linux-libre"
elif [ "${GRUB_DISTRIBUTOR}" = "parabola" ] ; then
OS="${GRUB_DISTRIBUTOR} GNU/Linux-libre"
else
OS="${GRUB_DISTRIBUTOR} GNU/Linux"
fi
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"`
list="/boot/vmlinuz-linux";
while [ "x$list" != "x" ] ; do
linux=`version_find_latest $list`
echo -e "\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"`
base_init=`echo $basename | sed -e "s,vmlinuz,initramfs,g"`
alt_version="${base_init}-fallback"
linux_root_device_thisversion="${LINUX_ROOT_DEVICE}"
initrd=
for i in "${base_init}.img"; do
if test -e "${dirname}/${i}" ; then
initrd="$i"
break
fi
done
if test -n "${initrd}" ; then
echo -e "\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
|
