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authorAndré Fabian Silva Delgado <andre@pc-01.localdomain>2012-02-21 11:39:38 -0200
committerAndré Fabian Silva Delgado <andre@pc-01.localdomain>2012-02-21 11:39:38 -0200
commit415e6b0a686989d0000a82ba8404d4ab9cd1e6b7 (patch)
tree4c78f30103549386aa7f645c7f2623c181ce0572 /kernels/xen/09_xen
parent8446919c3950deb73699302e1c33cdc05b7d4add (diff)
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kernels/xe-guest-utilities
Diffstat (limited to 'kernels/xen/09_xen')
-rwxr-xr-xkernels/xen/09_xen123
1 files changed, 123 insertions, 0 deletions
diff --git a/kernels/xen/09_xen b/kernels/xen/09_xen
new file mode 100755
index 000000000..094b7f427
--- /dev/null
+++ b/kernels/xen/09_xen
@@ -0,0 +1,123 @@
+#! /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}"
+ 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-*`
+
+ list="/boot/vmlinuz-linux-libre";
+
+ 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
+