Support BOOT_FILE variable for usage within secureboot templates

[grml-live.git] / grml-live

diff --git a/grml-live b/grml-live
index f561355..c1a37d9 100755 (executable)
--- a/grml-live
+++ b/grml-live
@@ -330,6 +330,9 @@ adjust_boot_files() {
       sed -i "s/%RELEASE_INFO%/$RELEASE_INFO/g"    "${file}"
       sed -i "s/%SHORT_NAME%/$SHORT_NAME/g"        "${file}"
       sed -i "s/%VERSION%/$VERSION/g"              "${file}"
+      if [ -n "${BOOT_FILE}" ] ; then
+        sed -i "s;%BOOT_FILE%;$BOOT_FILE;g"        "${file}"
+      fi
 
       [ -n "$DEFAULT_BOOTOPTIONS" ] && sed -i "s; boot=live; boot=live $DEFAULT_BOOTOPTIONS;"  "${file}"
 
@@ -1011,6 +1014,25 @@ if [ "$ARCH" = i386 ] || [ "$ARCH" = amd64 ] ; then
       eend $?
     fi
 
+    # every recent Grml ISO ships a /conf/bootid.txt, though GRUB might find
+    # the /conf/bootid.txt of a different (Grml) ISO than the one that's
+    # supposed to be running, so within scripts/GRMLBASE/45-grub-images
+    # we generate a random filename, stored inside /boot/grub/bootfile.txt,
+    # which we place on the resulting ISO here
+    if [ -r "${CHROOT_OUTPUT}"/boot/grub/bootfile.txt ] ; then
+      mkdir -p "${BUILD_OUTPUT}"/conf
+      rm -f "${BUILD_OUTPUT}"/conf/bootfile*  # ensure we don't leave any old(er) files behind
+
+      einfo "Generating "${BUILD_OUTPUT}"/conf/bootfile* files"
+      log   "Generating "${BUILD_OUTPUT}"/conf/bootfile* files"
+
+      BOOT_FILE="/conf/bootfile_$(cat "${CHROOT_OUTPUT}"/boot/grub/bootfile.txt)"
+      echo "# This file is relevant for GRUB boot with the Grml ISO." > "${BUILD_OUTPUT}/${BOOT_FILE}"
+      # save information about the random filename inside /conf/bootfile.txt
+      echo "${BOOT_FILE}" > "${BUILD_OUTPUT}"/conf/bootfile.txt
+      eend $?
+    fi
+
     grub_setup
 
     # EFI boot files