Adjust grub variable in boot/isolinux/{addons,grub}.cfg

[grml-live.git] / grml-live

diff --git a/grml-live b/grml-live
index b35bacd..5f04f87 100755 (executable)
--- a/grml-live
+++ b/grml-live
@@ -23,7 +23,7 @@ fi
 set -e
 
 # global variables
 set -e
 
 # global variables

-GRML_LIVE_VERSION='0.9.22'
+GRML_LIVE_VERSION='0.9.26'

 PN="$(basename $0)"
 CMDLINE="$0 $@"
 ISO_DATE="$(date +%Y-%m-%d)"
 PN="$(basename $0)"
 CMDLINE="$0 $@"
 ISO_DATE="$(date +%Y-%m-%d)"


@@ -44,7 +44,7 @@ Usage: $PN [options, see as follows]
    -c <classe[s]>          classes to be used for building the ISO via FAI
    -C <configfile>         configuration file for grml-live
    -F                      force execution without prompting
    -c <classe[s]>          classes to be used for building the ISO via FAI
    -C <configfile>         configuration file for grml-live
    -F                      force execution without prompting

-   -g <grml_name>]         set the grml flavour name
+   -g <grml_name>          set the grml flavour name

    -h                      display short usage information and exit
    -i <iso_name>           name of ISO
    -I <src_directory>      directory which provides files that should become
    -h                      display short usage information and exit
    -i <iso_name>           name of ISO
    -I <src_directory>      directory which provides files that should become


@@ -52,7 +52,7 @@ Usage: $PN [options, see as follows]
    -n                      skip generation of ISO
    -o <output_directory>   main output directory of the build process
    -q                      skip mksquashfs
    -n                      skip generation of ISO
    -o <output_directory>   main output directory of the build process
    -q                      skip mksquashfs

-   -r <release_name<       release name
+   -r <release_name>       release name

    -s <suite>              Debian suite; values: etch, lenny, squeeze, sid
    -t <template_directory> place of the templates
    -u                      update existing chroot instead of rebuilding it from scratch
    -s <suite>              Debian suite; values: etch, lenny, squeeze, sid
    -t <template_directory> place of the templates
    -u                      update existing chroot instead of rebuilding it from scratch


@@ -256,7 +256,7 @@ shift $(($OPTIND - 1))  # set ARGV to the first not parsed commandline parameter
 [ -n "$OUTPUT" ]           || OUTPUT='/grml/grml-live'
 [ -n "$RELEASENAME" ]      || RELEASENAME='grml-live rocks'
 [ -n "$SQUASHFS_EXCLUDES_FILE " ] || SQUASHFS_EXCLUDES_FILE='/etc/grml/fai/squashfs-excludes'
 [ -n "$OUTPUT" ]           || OUTPUT='/grml/grml-live'
 [ -n "$RELEASENAME" ]      || RELEASENAME='grml-live rocks'
 [ -n "$SQUASHFS_EXCLUDES_FILE " ] || SQUASHFS_EXCLUDES_FILE='/etc/grml/fai/squashfs-excludes'

-[ -n "$SUITE" ]            || SUITE='stable'
+[ -n "$SUITE" ]            || SUITE='lenny'

 [ -n "$TEMPLATE_DIRECTORY" ] || TEMPLATE_DIRECTORY='/usr/share/grml-live/templates'
 [ -n "$USERNAME" ]         || USERNAME='grml'
 [ -n "$VERSION" ]          || VERSION='0.0.1'
 [ -n "$TEMPLATE_DIRECTORY" ] || TEMPLATE_DIRECTORY='/usr/share/grml-live/templates'
 [ -n "$USERNAME" ]         || USERNAME='grml'
 [ -n "$VERSION" ]          || VERSION='0.0.1'


@@ -276,7 +276,7 @@ ISO_OUTPUT="$OUTPUT/grml_isos"
 
 # trim characters that are known to cause problems inside $GRML_NAME;
 # for example isolinux does not like '-' inside the directory name
 
 # trim characters that are known to cause problems inside $GRML_NAME;
 # for example isolinux does not like '-' inside the directory name

-[ -n "$GRML_NAME" ] && export SHORT_GRML_NAME="$(echo $GRML_NAME | tr -d ',./;\- ')"
+[ -n "$GRML_NAME" ] && export SHORT_NAME="$(echo $GRML_NAME | tr -d ',./;\- ')"

 
 # export variables to have them available in fai scripts:
 [ -n "$GRML_NAME" ]   && export GRML_NAME="$GRML_NAME"
 
 # export variables to have them available in fai scripts:
 [ -n "$GRML_NAME" ]   && export GRML_NAME="$GRML_NAME"


@@ -561,8 +561,8 @@ else
          einfo "Finished execution of stage 'fai dirinstall'"
       fi
 
          einfo "Finished execution of stage 'fai dirinstall'"
       fi
 

-      einfo "Find FAI build logs at $(readlink -f /var/log/fai/$HOSTNAME/last)."
-      log   "Find FAI build logs at $(readlink -f /var/log/fai/$HOSTNAME/last)."
+      einfo "Find FAI build logs at $(readlink -f /var/log/fai/$HOSTNAME/last)"
+      log   "Find FAI build logs at $(readlink -f /var/log/fai/$HOSTNAME/last)"

       eend 0
    fi
 fi # BUILD_DIRTY?
       eend 0
    fi
 fi # BUILD_DIRTY?


@@ -580,7 +580,7 @@ if [ "$ARCH" = i386 ] || [ "$ARCH" = amd64 ] ; then
    else
       # booting stuff:
       [ -d "$BUILD_OUTPUT"/boot/isolinux ] || mkdir -p "$BUILD_OUTPUT"/boot/isolinux
    else
       # booting stuff:
       [ -d "$BUILD_OUTPUT"/boot/isolinux ] || mkdir -p "$BUILD_OUTPUT"/boot/isolinux

-      [ -d "$BUILD_OUTPUT"/boot/"${SHORT_GRML_NAME}" ] || mkdir -p "$BUILD_OUTPUT"/boot/"${SHORT_GRML_NAME}"
+      [ -d "$BUILD_OUTPUT"/boot/"${SHORT_NAME}" ] || mkdir -p "$BUILD_OUTPUT"/boot/"${SHORT_NAME}"

 
       if [ -z "$NO_ADDONS" ] ; then
          [ -d "$BUILD_OUTPUT"/boot/addons   ] || mkdir -p "$BUILD_OUTPUT"/boot/addons
 
       if [ -z "$NO_ADDONS" ] ; then
          [ -d "$BUILD_OUTPUT"/boot/addons   ] || mkdir -p "$BUILD_OUTPUT"/boot/addons


@@ -601,7 +601,7 @@ if [ "$ARCH" = i386 ] || [ "$ARCH" = amd64 ] ; then
       # during build, so check for the file:
       INITRD="$(ls $CHROOT_OUTPUT/boot/initrd* 2>/dev/null| grep -v '.bak$' | sort -r | head -1)"
       if [ -n "$INITRD" ] ; then
       # during build, so check for the file:
       INITRD="$(ls $CHROOT_OUTPUT/boot/initrd* 2>/dev/null| grep -v '.bak$' | sort -r | head -1)"
       if [ -n "$INITRD" ] ; then

-         cp $INITRD "$BUILD_OUTPUT"/boot/"${SHORT_GRML_NAME}"/initrd.gz
+         cp $INITRD "$BUILD_OUTPUT"/boot/"${SHORT_NAME}"/initrd.gz

          find $CHROOT_OUTPUT/boot/ -name initrd\*.bak -exec rm {} \;
       else
          log    "Error: No initrd found inside $CHROOT_OUTPUT/boot/ - Exiting"
          find $CHROOT_OUTPUT/boot/ -name initrd\*.bak -exec rm {} \;
       else
          log    "Error: No initrd found inside $CHROOT_OUTPUT/boot/ - Exiting"


@@ -611,7 +611,7 @@ if [ "$ARCH" = i386 ] || [ "$ARCH" = amd64 ] ; then
 
       KERNEL_IMAGE="$(ls $CHROOT_OUTPUT/boot/vmlinuz* 2>/dev/null | sort -r | head -1)"
       if [ -n "$KERNEL_IMAGE" ] ; then
 
       KERNEL_IMAGE="$(ls $CHROOT_OUTPUT/boot/vmlinuz* 2>/dev/null | sort -r | head -1)"
       if [ -n "$KERNEL_IMAGE" ] ; then

-         cp "$KERNEL_IMAGE" "$BUILD_OUTPUT"/boot/"${SHORT_GRML_NAME}"/linux26
+         cp "$KERNEL_IMAGE" "$BUILD_OUTPUT"/boot/"${SHORT_NAME}"/linux26

       else
          log    "Error: No kernel found inside $CHROOT_OUTPUT/boot/ - Exiting"
          eerror "Error: No kernel found inside $CHROOT_OUTPUT/boot/ - Exiting" ; eend 1
       else
          log    "Error: No kernel found inside $CHROOT_OUTPUT/boot/ - Exiting"
          eerror "Error: No kernel found inside $CHROOT_OUTPUT/boot/ - Exiting" ; eend 1


@@ -625,6 +625,8 @@ if [ "$ARCH" = i386 ] || [ "$ARCH" = amd64 ] ; then
          bailout 8
       fi
 
          bailout 8
       fi
 

+      # *always* copy files to output directory so the variables
+      # get adjusted according to the build

       cp ${TEMPLATE_DIRECTORY}/boot/isolinux/*  "$BUILD_OUTPUT"/boot/isolinux/
 
       if [ -n "$NO_ADDONS" ] ; then
       cp ${TEMPLATE_DIRECTORY}/boot/isolinux/*  "$BUILD_OUTPUT"/boot/isolinux/
 
       if [ -n "$NO_ADDONS" ] ; then


@@ -668,53 +670,45 @@ if [ "$ARCH" = i386 ] || [ "$ARCH" = amd64 ] ; then
       RELEASE_INFO="$(extend_string_end 68 "$RELEASE_INFO")"
 
       sed -i "s/%RELEASE_INFO%/$GRML_NAME $VERSION - $RELEASENAME/" "$BUILD_OUTPUT"/GRML/grml-version
       RELEASE_INFO="$(extend_string_end 68 "$RELEASE_INFO")"
 
       sed -i "s/%RELEASE_INFO%/$GRML_NAME $VERSION - $RELEASENAME/" "$BUILD_OUTPUT"/GRML/grml-version

-      sed -i "s/%DATE%/$ISO_DATE/"             "$BUILD_OUTPUT"/GRML/grml-version
-
-      sed -i "s/%RELEASE_INFO%/$RELEASE_INFO/" "$BUILD_OUTPUT"/boot/isolinux/boot.msg
-      sed -i "s/%DATE%/$ISO_DATE/"             "$BUILD_OUTPUT"/boot/isolinux/boot.msg
-
-      sed -i "s/%GRML_NAME%/$SHORT_GRML_NAME/" "$BUILD_OUTPUT"/boot/isolinux/isolinux.cfg
-      sed -i "s/%GRML_NAME%/$SHORT_GRML_NAME/" "$BUILD_OUTPUT"/boot/isolinux/syslinux.cfg
-
-      sed -i "s/%RELEASE_INFO%/$RELEASE_INFO/" "$BUILD_OUTPUT"/boot/isolinux/boot-beep.msg
-      sed -i "s/%DATE%/$ISO_DATE/"             "$BUILD_OUTPUT"/boot/isolinux/boot-beep.msg
-
-      sed -i "s/%VERSION%/$VERSION/"           "$BUILD_OUTPUT"/boot/grub/menu.lst
-      sed -i "s/%GRML_NAME%/$SHORT_GRML_NAME/" "$BUILD_OUTPUT"/boot/grub/menu.lst
-
-      sed -i "s/%VERSION%/$VERSION/"           "$BUILD_OUTPUT"/boot/grub/grub.cfg
-      sed -i "s/%GRML_NAME%/$SHORT_GRML_NAME/" "$BUILD_OUTPUT"/boot/grub/grub.cfg
-
-      if [ -r "${BUILD_OUTPUT}/boot/isolinux/${DISTRI_NAME}.cfg" ] ; then
-         sed -i "s/%VERSION%/$VERSION/"            "$BUILD_OUTPUT"/boot/isolinux/grml.cfg
-         sed -i "s/%GRML_LONG_NAME%/$DISTRI_NAME/" "$BUILD_OUTPUT"/boot/isolinux/grml.cfg
-         sed -i "s/%GRML_NAME%/$SHORT_GRML_NAME/"  "$BUILD_OUTPUT"/boot/isolinux/grml.cfg
-         sed -i "s/%ARCH%/$ARCH/"                  "$BUILD_OUTPUT"/boot/isolinux/grml.cfg
-      fi
-
-      sed -i "s/%VERSION%/$VERSION/"           "$BUILD_OUTPUT"/boot/isolinux/grml.cfg
-      sed -i "s/%GRML_LONG_NAME%/$GRML_NAME/"  "$BUILD_OUTPUT"/boot/isolinux/grml.cfg
-      sed -i "s/%GRML_NAME%/$SHORT_GRML_NAME/" "$BUILD_OUTPUT"/boot/isolinux/grml.cfg
-      sed -i "s/%ARCH%/$ARCH/"                 "$BUILD_OUTPUT"/boot/isolinux/grml.cfg
-
-      sed -i "s/%DISTRI_INFO%/$DISTRI_INFO/" "$BUILD_OUTPUT"/boot/isolinux/vesamenu.cfg
-      sed -i "s/%DISTRI_SPLASH%/$DISTRI_SPLASH/" "$BUILD_OUTPUT"/boot/isolinux/vesamenu.cfg
+      sed -i "s/%DATE%/$ISO_DATE/"                                  "$BUILD_OUTPUT"/GRML/grml-version

 
       # make sure the squashfs filename is set accordingly:
 
       # make sure the squashfs filename is set accordingly:

-      GRML_NAME_SQUASHFS="$GRML_NAME.squashfs"
-      sed -i "s/%GRML_NAME_SQUASHFS%/$GRML_NAME_SQUASHFS/" "$BUILD_OUTPUT"/boot/isolinux/isolinux.cfg
-      sed -i "s/%GRML_NAME_SQUASHFS%/$GRML_NAME_SQUASHFS/" "$BUILD_OUTPUT"/boot/isolinux/syslinux.cfg
-      sed -i "s/%GRML_NAME_SQUASHFS%/$GRML_NAME_SQUASHFS/" "$BUILD_OUTPUT"/boot/grub/menu.lst
-
-      GRML_NAME_SQUASHFS="$(cut_string 20 "$GRML_NAME_SQUASHFS")"
-      GRML_NAME_SQUASHFS="$(extend_string_end 20 "$GRML_NAME_SQUASHFS")"
-      sed -i "s/%GRML_NAME_SQUASHFS%/$GRML_NAME_SQUASHFS/" "$BUILD_OUTPUT"/boot/isolinux/f4
-      sed -i "s/%GRML_NAME_SQUASHFS%/$GRML_NAME_SQUASHFS/" "$BUILD_OUTPUT"/boot/isolinux/f5
+      SQUASHFS_NAME="$GRML_NAME.squashfs"
+
+      # adjust all variables in the templates with the according distribution information
+      for file in "${BUILD_OUTPUT}"/boot/isolinux/*.cfg "${BUILD_OUTPUT}"/boot/isolinux/*.msg \
+                  "${BUILD_OUTPUT}"/boot/grub/* ; do
+        sed -i "s/%ARCH%/$ARCH/g"                    "${file}"
+        sed -i "s/%DATE%/$ISO_DATE/g"                "${file}"
+        sed -i "s/%DISTRI_INFO%/$DISTRI_INFO/g"      "${file}"
+        sed -i "s/%DISTRI_NAME%/$DISTRI_NAME/g"      "${file}"
+        sed -i "s/%DISTRI_SPLASH%/$DISTRI_SPLASH/g"  "${file}"
+        sed -i "s/%GRML_NAME%/$GRML_NAME/g"          "${file}"
+        sed -i "s/%SQUASHFS_NAME%/$SQUASHFS_NAME/g"  "${file}"
+        sed -i "s/%RELEASE_INFO%/$RELEASE_INFO/g"    "${file}"
+        sed -i "s/%SHORT_NAME%/$SHORT_NAME/g"        "${file}"
+        sed -i "s/%VERSION%/$VERSION/g"              "${file}"
+      done
+
+      # adjust bootsplash accordingly but make sure the string has the according lenght
+      SQUASHFS_NAME="$(cut_string 20 "$SQUASHFS_NAME")"
+      SQUASHFS_NAME="$(extend_string_end 20 "$SQUASHFS_NAME")"
+      sed -i "s/%SQUASHFS_NAME%/$SQUASHFS_NAME/" "$BUILD_OUTPUT"/boot/isolinux/f4
+      sed -i "s/%SQUASHFS_NAME%/$SQUASHFS_NAME/" "$BUILD_OUTPUT"/boot/isolinux/f5

 
       if ! [ -r "${BUILD_OUTPUT}/boot/isolinux/${DISTRI_NAME}.cfg" ] || [ "$DISTRI_NAME" = "grml" ] ; then
 
       if ! [ -r "${BUILD_OUTPUT}/boot/isolinux/${DISTRI_NAME}.cfg" ] || [ "$DISTRI_NAME" = "grml" ] ; then

-         log "including grml.cfg in ${BUILD_OUTPUT}/boot/isolinux/distri.cfg"
-         echo "include grml.cfg" > "${BUILD_OUTPUT}/boot/isolinux/distri.cfg"
-         [ -n "$NO_ADDONS" ] || echo "include addons.cfg" >> "${BUILD_OUTPUT}/boot/isolinux/distri.cfg"
+         log "including grmlmain.cfg in ${BUILD_OUTPUT}/boot/isolinux/distri.cfg"
+         echo "include grmlmain.cfg"    >  "${BUILD_OUTPUT}/boot/isolinux/distri.cfg"
+         echo "include default.cfg"     >  "${BUILD_OUTPUT}/boot/isolinux/grmlmain.cfg"
+         echo "include menuoptions.cfg" >> "${BUILD_OUTPUT}/boot/isolinux/grmlmain.cfg"
+         echo "include grml.cfg"        >> "${BUILD_OUTPUT}/boot/isolinux/grmlmain.cfg"
+         echo "include options.cfg"     >> "${BUILD_OUTPUT}/boot/isolinux/grmlmain.cfg"
+         if [ ! -n "$NO_ADDONS" ] ; then
+           echo "include addons.cfg"    >> "${BUILD_OUTPUT}/boot/isolinux/grmlmain.cfg"
+         fi
+         echo "include isoprompt.cfg"   >> "${BUILD_OUTPUT}/boot/isolinux/grmlmain.cfg"
+         echo "include hd.cfg"          >> "${BUILD_OUTPUT}/boot/isolinux/grmlmain.cfg"
+         echo "include hidden.cfg"      >> "${BUILD_OUTPUT}/boot/isolinux/grmlmain.cfg"

       else # assume we are building a custom distribution:
          log "File ${BUILD_OUTPUT}/boot/isolinux/${DISTRI_NAME}.cfg found, using it."
          einfo "File ${BUILD_OUTPUT}/boot/isolinux/${DISTRI_NAME}.cfg found, using it."
       else # assume we are building a custom distribution:
          log "File ${BUILD_OUTPUT}/boot/isolinux/${DISTRI_NAME}.cfg found, using it."
          einfo "File ${BUILD_OUTPUT}/boot/isolinux/${DISTRI_NAME}.cfg found, using it."


@@ -767,15 +761,21 @@ if [ "$ARCH" = i386 ] || [ "$ARCH" = amd64 ] ; then
             GRUB_VERSION=1
          fi
 
             GRUB_VERSION=1
          fi
 

-         # why not ed(1)?

          for file in "$BUILD_OUTPUT"/boot/addons/bsd4grml/boot.6 \
          for file in "$BUILD_OUTPUT"/boot/addons/bsd4grml/boot.6 \

-                     "$BUILD_OUTPUT"/boot/addons/bsd4grml/boot.cfg; do
-             sed -i -e "s!%GRUB_VERSION%!$GRUB_VERSION!g" \
-                    -e "s!%GRUB_LEGACY%!$GRUB_LEGACY!g" "$file"
+                     "$BUILD_OUTPUT"/boot/addons/bsd4grml/boot.cfg \
+                     "$BUILD_OUTPUT"/boot/isolinux/addons.cfg \
+                     "$BUILD_OUTPUT"/boot/isolinux/syslinux.cfg \
+                     "$BUILD_OUTPUT"/boot/grub/grub.cfg \
+                     "$BUILD_OUTPUT"/boot/grub/menu.lst ; do
+             if [ -e "$file" ] ; then
+               sed -i -e "s!%GRUB_VERSION%!$GRUB_VERSION!g" \
+                      -e "s!%GRUB_LEGACY%!$GRUB_LEGACY!g" "$file"
+             fi

          done
 
          sed -i "s/%RELEASE_INFO%/$GRML_NAME $VERSION - $RELEASENAME/" "$BUILD_OUTPUT"/boot/addons/bsd4grml/boot.6
       fi
          done
 
          sed -i "s/%RELEASE_INFO%/$GRML_NAME $VERSION - $RELEASENAME/" "$BUILD_OUTPUT"/boot/addons/bsd4grml/boot.6
       fi

+

       if [ -e "$BUILD_OUTPUT"/boot/grub/$GRUB_LEGACY ]; then
          sed -i "s/%GRUB_LEGACY%/$GRUB_LEGACY/g" "$BUILD_OUTPUT"/boot/grub/menu.lst
          sed -i "s/%GRUB_LEGACY%/$GRUB_LEGACY/g" "$BUILD_OUTPUT"/boot/grub/grub.cfg
       if [ -e "$BUILD_OUTPUT"/boot/grub/$GRUB_LEGACY ]; then
          sed -i "s/%GRUB_LEGACY%/$GRUB_LEGACY/g" "$BUILD_OUTPUT"/boot/grub/menu.lst
          sed -i "s/%GRUB_LEGACY%/$GRUB_LEGACY/g" "$BUILD_OUTPUT"/boot/grub/grub.cfg


@@ -889,6 +889,10 @@ else
                   ;;
                esac
             fi
                   ;;
                esac
             fi

+
+            # if we still want to use mksquashfs-lzma then let's choose
+            # blocksize 256k as this gives best result with regards to time + comopression
+            [[ "$SQUASHFS_BINARY" == "mksquashfs-lzma" ]] && SQUASHFS_OPTIONS="-b 256k -lzma"

          fi
 
       fi
          fi
 
       fi


@@ -902,8 +906,8 @@ else
    # make sure to drop the -nolzma option if it's not available:
    if echo "$SQUASHFS_OPTIONS" | grep -q -- "-nolzma" ; then
       if ! $SQUASHFS_BINARY --help 2>&1 | grep -q -- '-nolzma' ; then
    # make sure to drop the -nolzma option if it's not available:
    if echo "$SQUASHFS_OPTIONS" | grep -q -- "-nolzma" ; then
       if ! $SQUASHFS_BINARY --help 2>&1 | grep -q -- '-nolzma' ; then

-         log   "$SQUASHFS_BINARY does NOT support the nolzma option, dropping it and using default mode."
-         ewarn "$SQUASHFS_BINARY does NOT support the nolzma option, dropping it and using default mode."
+         log   "The $SQUASHFS_BINARY binary does NOT support the nolzma option, dropping it and using default mode."
+         ewarn "The $SQUASHFS_BINARY binary does NOT support the nolzma option, dropping it and using default mode."

          SQUASHFS_OPTIONS="$(echo $SQUASHFS_OPTIONS | sed 's/-nolzma//g')"
          eend 0
       fi
          SQUASHFS_OPTIONS="$(echo $SQUASHFS_OPTIONS | sed 's/-nolzma//g')"
          eend 0
       fi


@@ -912,8 +916,8 @@ else
    # make sure to drop the -lzma option if it's not available:
    if echo "$SQUASHFS_OPTIONS" | grep -q -- "-lzma" ; then
       if ! $SQUASHFS_BINARY --help 2>&1 | grep -q -- '-lzma' ; then
    # make sure to drop the -lzma option if it's not available:
    if echo "$SQUASHFS_OPTIONS" | grep -q -- "-lzma" ; then
       if ! $SQUASHFS_BINARY --help 2>&1 | grep -q -- '-lzma' ; then

-         log   "$SQUASHFS_BINARY does NOT support the lzma option, dropping it and using default mode."
-         ewarn "$SQUASHFS_BINARY does NOT support the lzma option, dropping it and using default mode."
+         log   "The $SQUASHFS_BINARY binary does NOT support the lzma option, dropping it and using default mode."
+         ewarn "The $SQUASHFS_BINARY binary does NOT support the lzma option, dropping it and using default mode."

          SQUASHFS_OPTIONS="$(echo $SQUASHFS_OPTIONS | sed 's/-lzma//g')"
          eend 0
       fi
          SQUASHFS_OPTIONS="$(echo $SQUASHFS_OPTIONS | sed 's/-lzma//g')"
          eend 0
       fi


@@ -989,7 +993,7 @@ elif [ -n "$SKIP_MKISOFS" ] ; then
 else
    mkdir -p "$ISO_OUTPUT" || bailout 6 "Problem with creating $ISO_OUTPUT for stage 'iso build'"
 
 else
    mkdir -p "$ISO_OUTPUT" || bailout 6 "Problem with creating $ISO_OUTPUT for stage 'iso build'"
 

-   if $FORCE_ISO_REBUILD ; then
+   if $FORCE_ISO_REBUILD && ! [ -f "${ISO_OUTPUT}/${ISO_NAME}" ] ; then

       log   "Forcing rebuild of ISO because files on ISO have been modified."
       einfo "Forcing rebuild of ISO because files on ISO have been modified."
    fi
       log   "Forcing rebuild of ISO because files on ISO have been modified."
       einfo "Forcing rebuild of ISO because files on ISO have been modified."
    fi