Right now I believe that (1) is the most reasonable
Somethine like in the attached patch. I haven't tested it yet in real
migration scenario though
--
Regards
Vladimir 'φ-coder/phcoder' Serbinenko
=== modified file 'util/grub-mkconfig.in'
--- util/grub-mkconfig.in 2012-03-03 12:05:08 +0000
+++ util/grub-mkconfig.in 2012-03-03 14:39:52 +0000
@@ -40,6 +40,7 @@
self=`basename $0`
grub_probe="${sbindir}/`echo grub-probe | sed "${transform}"`"
+grub_editenv="${bindir}/`echo grub-editenv | sed "${transform}"`"
grub_script_check="${bindir}/`echo grub-script-check | sed "${transform}"`"
export TEXTDOMAIN=@PACKAGE@
@@ -165,6 +166,11 @@
esac
done
+GRUB_ACTUAL_DEFAULT="$GRUB_DEFAULT"
+
+if [ "x${GRUB_ACTUAL_DEFAULT}" = "xsaved" ] ; then GRUB_ACTUAL_DEFAULT="`"${grub_editenv}" - list | sed -n '/^saved_entry=/ s,^saved_entry=,,p'`" ; fi
+
+
# These are defined in this script, export them here so that user can
# override them.
export GRUB_DEVICE \
@@ -173,7 +179,8 @@
GRUB_DEVICE_BOOT_UUID \
GRUB_FS \
GRUB_FONT \
- GRUB_PRELOAD_MODULES
+ GRUB_PRELOAD_MODULES \
+ GRUB_ACTUAL_DEFAULT
# These are optional, user-defined variables.
export GRUB_DEFAULT \
=== modified file 'util/grub.d/10_linux.in'
--- util/grub.d/10_linux.in 2012-03-03 12:12:41 +0000
+++ util/grub.d/10_linux.in 2012-03-03 14:38:30 +0000
@@ -70,18 +70,39 @@
{
os="$1"
version="$2"
- recovery="$3"
+ type="$3"
args="$4"
- if ${recovery} ; then
- title="$(gettext_quoted "%s, with Linux %s (recovery mode)")"
- else
- title="$(gettext_quoted "%s, with Linux %s")"
- fi
+
if [ -z "$boot_device_id" ]; then
boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")"
fi
- printf "menuentry '${title}' ${CLASS} \$menuentry_id_option 'gnulinux-$version-$recovery-$boot_device_id' {\n" "${os}" "${version}"
- if ! ${recovery} ; then
+ if [ x$type != xsimple ] ; then
+ case $type in
+ recovery)
+ title="$(gettext_quoted "%s, with Linux %s (recovery mode)")" ;;
+ *)
+ title="$(gettext_quoted "%s, with Linux %s")" ;;
+ esac
+ full_title="$(printf '${title}' "${os}" "${version}")"
+ if [ x"$full_title" = x"$GRUB_ACTUAL_DEFAULT" ] ; then
+ quoted="$(echo "$GRUB_ACTUAL_DEFAULT" | sed "s/'/'\\\\\\\\''/g")"
+ suffix="${suffix}if [ \"x\$default\" = '$quoted' ]; then
+default='gnulinux-$version-$type-$boot_device_id'
+fi
+"
+ fi
+ if [ x"Previous Linux versions>$full_title" = x"$GRUB_ACTUAL_DEFAULT" ] ; then
+ quoted="$(echo "$GRUB_ACTUAL_DEFAULT" | sed "s/'/'\\\\\\\\''/g")"
+ suffix="${suffix}if [ \"x\$default\" = '$quoted' ]; then
+default='gnulinux-$version-$type-$boot_device_id'
+fi
+"
+ fi
+ echo "menuentry '${full_title}' ${CLASS} \$menuentry_id_option 'gnulinux-$version-$type-$boot_device_id' {"
+ else
+ echo "menuentry '${os}' ${CLASS} \$menuentry_id_option 'gnulinux-simple-$boot_device_id' {"
+ fi
+ if [ x$type != xrecovery ] ; then
save_default_entry | sed -e "s/^/\t/"
fi
@@ -155,7 +176,13 @@
prepare_boot_cache=
prepare_root_cache=
boot_device_id=
-
+suffix=
+
+# Extra indentation to add to menu entries in a submenu. We're not in a submenu
+# yet, so it's empty. In a submenu it will be equal to '\t' (one tab).
+submenu_indentation=""
+
+is_first_entry=true
while [ "x$list" != "x" ] ; do
linux=`version_find_latest $list`
gettext_printf "Found linux image: %s\n" "$linux" >&2
@@ -200,12 +227,37 @@
linux_root_device_thisversion=${GRUB_DEVICE}
fi
- linux_entry "${OS}" "${version}" false \
- "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}"
+ if [ "x$is_first_entry" = xtrue ]; then
+ linux_entry "${OS}" "${version}" simple \
+ "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}"
+
+ submenu_indentation="\t"
+
+ if [ -z "$boot_device_id" ]; then
+ boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")"
+ fi
+ cat << EOF
+submenu '$(gettext_quoted "Advanced options for ${OS}")' \$menuentry_id_option 'gnulinux-advanced-$boot_device_id' {
+EOF
+ fi
+
+ linux_entry "${OS}" "${version}" advanced \
+ "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}" \
+ | sed "s/^/$submenu_indentation/"
if [ "x${GRUB_DISABLE_RECOVERY}" != "xtrue" ]; then
- linux_entry "${OS}" "${version}" true \
- "single ${GRUB_CMDLINE_LINUX}"
+ linux_entry "${OS}" "${version}" recovery \
+ "single ${GRUB_CMDLINE_LINUX}" \
+ | sed "s/^/$submenu_indentation/"
fi
list=`echo $list | tr ' ' '\n' | grep -vx $linux | tr '\n' ' '`
+ is_first_entry=false
done
+
+# If at least one kernel was found, then we need to
+# add a closing '}' for the submenu command.
+if [ x"$is_first_entry" != xtrue ]; then
+ echo '}'
+fi
+
+echo -n "$suffix"
\ No newline at end of file
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