From e747a371c4287f6b6af58d5558c7961d3d1866a0 Mon Sep 17 00:00:00 2001
From: Andreas Loibl <andreas@andreas-loibl.de>
Date: Thu, 29 Sep 2011 19:46:39 +0200
Subject: added scripts to generate the EFI-partition-images

---
 mkefipart-fat     | 26 ++++++++++++++++++++++++++
 mkefipart-hfsplus | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 81 insertions(+)
 create mode 100755 mkefipart-fat
 create mode 100755 mkefipart-hfsplus

diff --git a/mkefipart-fat b/mkefipart-fat
new file mode 100755
index 0000000..21bfdc8
--- /dev/null
+++ b/mkefipart-fat
@@ -0,0 +1,26 @@
+#! /bin/sh
+# mkefipart-fat - written by Andreas Loibl <andreas@andreas-loibl.de>
+# 
+# Generate an image for a FAT-EFI-partition
+
+if [ ! -x /usr/bin/mmd ]; then
+	echo "Error: mtools are needed! Run: apt-get install mtools"
+	exit 1
+fi
+
+img=efi-fat.img
+[ "$1" ] && img="$1"
+
+# Stuff boot*.efi into a FAT filesystem, making it as small as possible.  24KiB
+# headroom seems to be enough; (x+31)/32*32 rounds up to multiple of 32.
+mkfs.msdos -n EFI -C "$img" \
+	$(( ($(stat -c %s binary/efi/boot/boot*.efi | awk '{s+=$1} END {print s}') / 1024 + 55) \
+	    / 32 * 32 ))
+mmd -i "$img" ::efi
+mmd -i "$img" ::efi/boot
+for file in binary/efi/boot/boot*.efi
+do
+	mcopy -i "$img" $file "::efi/boot/$(basename "$file")"
+done
+
+exit 0
diff --git a/mkefipart-hfsplus b/mkefipart-hfsplus
new file mode 100755
index 0000000..b858160
--- /dev/null
+++ b/mkefipart-hfsplus
@@ -0,0 +1,55 @@
+#! /bin/sh
+# mkefipart-hfsplus - written by Andreas Loibl <andreas@andreas-loibl.de>
+# 
+# Generate an image for a HFS+-EFI-partition
+
+set -e
+
+img=efi-hfs.img
+[ "$1" ] && img="$1"
+
+label=efi-hfs.vollabel
+[ "$2" ] && label="$2"
+[ ! -f "$label" ] && wget -O$label http://kanotix.acritox.com/files/mac/label.vollabel
+
+workdir=
+
+cleanup () {
+        [ "$workdir" ] || exit
+	umount "$workdir" 2>/dev/null | :
+	rm -rf "$workdir"
+}
+trap cleanup EXIT HUP INT QUIT TERM
+
+workdir="$(mktemp -d efi-image.XXXXXX)"
+
+# Stuff boot*.efi into a HFS+ filesystem, making it as small as possible (in MB steps).
+# (x+1023)/1024*1024 rounds up to multiple of 1024.
+dd if=/dev/zero of="$img" bs=1k count=$(( ($(stat -c %s binary/efi/boot/boot*.efi | awk '{s+=$1} END {print s}') / 1024 + 1023) / 1024 * 1024 )) 2>/dev/null
+mkfs.hfsplus "$img"
+mount -o loop,creator=prhc,type=jxbt,uid=99,gid=99 "$img" "$workdir"
+cp "$label" "$workdir"/.disk_label
+mkdir -p "$workdir"/efi/boot
+
+for file in binary/efi/boot/boot*.efi
+do
+	cp "$file" "$workdir/efi/boot/$(basename "$file")"
+done
+
+set -- $(ls -i $workdir/efi/boot/boot*.efi)
+inode=$1
+
+umount "$workdir"
+
+echo "Blessing file with inode $inode ($(basename "$2"))..."
+perl <<EOF
+open(FILE, "+< $img\0") or die "\$!\n";
+binmode FILE;
+seek(FILE, 0x450, SEEK_SET) or die "\$!\n";
+print FILE pack('NN', 2, $inode);
+seek(FILE, 0x464, SEEK_SET) or die "\$!\n";
+print FILE pack('N', 2, $inode);
+close(FILE);
+EOF
+
+exit 0
-- 
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