Ensure GRUB finds the running ISO

[grml-live.git] / etc / grml / fai / config / scripts / GRMLBASE / 45-grub-images

diff --git a/etc/grml/fai/config/scripts/GRMLBASE/45-grub-images b/etc/grml/fai/config/scripts/GRMLBASE/45-grub-images
index 6024989..16c0e9a 100755 (executable)
--- a/etc/grml/fai/config/scripts/GRMLBASE/45-grub-images
+++ b/etc/grml/fai/config/scripts/GRMLBASE/45-grub-images
@@ -1,36 +1,30 @@
 #!/bin/bash
-# Filename:      ${GRML_FAI_CONFIG}/config/scripts/GRMLBASE/45-efi
-# Purpose:       create grub image for use in ISO for EFI boot
+# Filename:      ${GRML_FAI_CONFIG}/config/scripts/GRMLBASE/45-grub-images
+# Purpose:       create grub images for use in ISO
 # Authors:       grml-team (grml.org), (c) Michael Prokop <mika@grml.org>
 # Bug-Reports:   see http://grml.org/bugs/
 # License:       This file is licensed under the GPL v2 or any later version.
 ################################################################################
 
 set -e
+set -u
 
+TMP_CONFIG="/tmp/grub_config_efi"
 
-BOOTX64="${target}/boot/bootx64.efi"
-EFI_IMG="${target}/boot/efi.img"
-TMP_CONFIG="${target}/tmp/grub_config_efi"
+# this allows us to find this specific Grml ISO,
+# even if there are multiple Grml ISOs present
+bootfile="${GRML_NAME}_$(TZ=UTC date +%s)"
+echo "$bootfile" > "${target}/"boot/grub/bootfile.txt
 
-rm -f "$BOOTX64" "$EFI_IMG" "$TMP_CONFIG"
-
-cat > "$TMP_CONFIG" <<EOF
-search --set -f /conf/bootid.txt root
-if [ -e /boot/grub/grub.cfg ]; then
- set prefix=(\$root)/boot/grub
- configfile /boot/grub/grub.cfg
-else
- echo "E: Could not find root device!"
-fi
+cat > "${target}/${TMP_CONFIG}" <<EOF
+search.file /conf/bootfile_$bootfile root
+set prefix=(\$root)/boot/grub
+insmod normal
+normal
+echo "E: Could not find root device (for /conf/bootfile_$bootfile)!"
 EOF
 
-BOOTX64="${BOOTX64##${target}}"
-EFI_IMG="${EFI_IMG##${target}}"
-TMP_CONFIG="${TMP_CONFIG##${target}}"
-
 ARCHS=(i386-pc)
-
 declare -A ADDITIONAL_MODULES
 ADDITIONAL_MODULES[i386-pc]="biosdisk"
 
@@ -44,48 +38,32 @@ if ifclass AMD64 ; then
   fi
 fi
 
-BOOTX64="${BOOTX64##${target}}"
-EFI_IMG="${EFI_IMG##${target}}"
-TMP_CONFIG="${TMP_CONFIG##${target}}"
-
-for arch in ${ARCHS[@]} ; do
-$ROOTCMD grub-mkimage -O $arch -o /boot/$arch.img --prefix=/boot/grub/ --config="$TMP_CONFIG" \
-  bitmap boot btrfs cat chain cmp configfile cpio echo elf ext2    \
-  fat gfxmenu gfxterm gzio help iso9660 jpeg linux loopback lvm    \
-  memdisk minicmd multiboot normal part_gpt part_msdos play png    \
-  probe raid regexp reiserfs search search_fs_file search_fs_uuid  \
-  search_label squash4 terminal test video videoinfo xfs ${ADDITIONAL_MODULES[$arch]}
-done
-
-if [ -f "${target}/boot/i386-pc.img" ] ; then
-  mv "${target}/boot/i386-pc.img" "${target}/boot/grub/grub.img"
-fi
-
-if [ -f "${target}/boot/x86_64-efi.img" ] ; then
-  mv "${target}/boot/x86_64-efi.img" "${target}/${BOOTX64}"
-fi
-
-if ifclass AMD64 ; then
-  if ! [ -r "${target}/${BOOTX64}" ] ; then
-    echo "Can not access grub efi image." >&2
-    exit 1
+if ifclass I386 ; then
+  if [ -r "${target}"/usr/lib/grub/i386-efi/moddep.lst ] ; then
+    ARCHS+=(i386-efi)
+    ADDITIONAL_MODULES[i386-efi]="efi_gop efi_uga"
+  else
+    echo "/usr/lib/grub/i386-efi/moddep.lst could not be found, skipping."
+    echo "NOTE: grub-efi-ia32 not installed?"
   fi
-
-  SIZE=$(du --apparent-size -sk "${target}/${BOOTX64}" | awk -F" " '{print $1'})
-  SIZE=$(((($SIZE / 32 )+2)*32))
-
-  dd if=/dev/zero of="${target}/${EFI_IMG}" bs=1k count="$SIZE" 2>/dev/null
-  $ROOTCMD mkfs.vfat -n GRML "$EFI_IMG" >/dev/null
-  $ROOTCMD mmd -i "$EFI_IMG" ::EFI
-  $ROOTCMD mmd -i "$EFI_IMG" ::EFI/BOOT
-  $ROOTCMD mcopy -i "$EFI_IMG" "$BOOTX64" ::EFI/BOOT/bootx64.efi >/dev/null
-  echo "Generated EFI image $BOOTX64"
-  echo "Generated bootx64 image $EFI_IMG"
 fi
 
+for arch in "${ARCHS[@]}" ; do
+  filename=''
+  case "$arch" in
+    i386-pc)    filename=/boot/grub/grub.img ;;
+    x86_64-efi) filename=/boot/bootx64.efi   ;;
+    i386-efi)   filename=/boot/bootia32.efi  ;;
+  esac
+
+  $ROOTCMD grub-mkimage -O $arch -o "$filename" --prefix=/boot/grub/ --config="$TMP_CONFIG" \
+    echo iso9660 part_msdos search_fs_file test \
+    fat ext2 reiserfs xfs btrfs squash4 part_gpt lvm \
+    ${ADDITIONAL_MODULES[$arch]}
+done
+
 rm -f "${target}/${TMP_CONFIG}"
 echo "Generated Grub images"
 
-
 ## END OF FILE #################################################################
 # vim:ft=sh expandtab ai tw=80 tabstop=4 shiftwidth=2