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Index: head/sys/boot/efi/boot1/generate-fat.sh
===================================================================
--- head/sys/boot/efi/boot1/generate-fat.sh
+++ head/sys/boot/efi/boot1/generate-fat.sh
@@ -13,50 +13,14 @@
FAT_SIZE=1600 #Size in 512-byte blocks of the produced image
+BOOT1_OFFSET=2d
BOOT1_SIZE=128k
-#
-# Known filenames
-# amd64: BOOTx64.efi
-# arm64: BOOTaa64.efi
-# arm: BOOTarm.efi
-# i386: BOOTia32.efi
-#
-if [ -z "$2" ]; then
- echo "Usage: $0 arch boot-filename"
+if [ $(id -u) != 0 ]; then
+ echo "${0##*/}: must run as root" >&2
exit 1
fi
-ARCH=$1
-FILENAME=$2
-
-# Generate 800K FAT image
-OUTPUT_FILE=fat-${ARCH}.tmpl
-
-dd if=/dev/zero of=$OUTPUT_FILE bs=512 count=$FAT_SIZE
-DEVICE=`mdconfig -a -f $OUTPUT_FILE`
-newfs_msdos -F 12 -L EFI $DEVICE
-mkdir stub
-mount -t msdosfs /dev/$DEVICE stub
-
-# Create and bless a directory for the boot loader
-mkdir -p stub/efi/boot
-
-# Make a dummy file for boot1
-echo 'Boot1 START' | dd of=stub/efi/boot/$FILENAME cbs=$BOOT1_SIZE count=1 conv=block
-# Provide a fallback startup.nsh
-echo $FILENAME > stub/efi/boot/startup.nsh
-
-umount stub
-mdconfig -d -u $DEVICE
-rmdir stub
-
-# Locate the offset of the fake file
-BOOT1_OFFSET=$(hd $OUTPUT_FILE | grep 'Boot1 START' | cut -f 1 -d ' ')
-
-# Convert to number of blocks
-BOOT1_OFFSET=$(echo 0x$BOOT1_OFFSET | awk '{printf("%x\n",$1/512);}')
-
# Record maximum boot1 size in bytes
case $BOOT1_SIZE in
*k)
@@ -72,11 +36,50 @@
echo "BOOT1_OFFSET=0x$BOOT1_OFFSET" >> Makefile.fat
echo "BOOT1_MAXSIZE=$BOOT1_MAXSIZE" >> Makefile.fat
-bzip2 $OUTPUT_FILE
-echo 'FAT template boot filesystem created by generate-fat.sh' > $OUTPUT_FILE.bz2.uu
-echo 'DO NOT EDIT' >> $OUTPUT_FILE.bz2.uu
-echo "\$FreeBSD\$" >> $OUTPUT_FILE.bz2.uu
+while read ARCH FILENAME; do
+ # Generate 800K FAT image
+ OUTPUT_FILE=fat-${ARCH}.tmpl
-uuencode $OUTPUT_FILE.bz2 $OUTPUT_FILE.bz2 >> $OUTPUT_FILE.bz2.uu
-rm $OUTPUT_FILE.bz2
+ dd if=/dev/zero of=$OUTPUT_FILE bs=512 count=$FAT_SIZE
+ DEVICE=`mdconfig -a -f $OUTPUT_FILE`
+ newfs_msdos -F 12 -L EFI $DEVICE
+ mkdir stub
+ mount -t msdosfs /dev/$DEVICE stub
+ # Create and bless a directory for the boot loader
+ mkdir -p stub/efi/boot
+
+ # Make a dummy file for boot1
+ echo 'Boot1 START' | dd of=stub/efi/boot/$FILENAME cbs=$BOOT1_SIZE count=1 conv=block
+ # Provide a fallback startup.nsh
+ echo $FILENAME > stub/efi/boot/startup.nsh
+
+ umount stub
+ mdconfig -d -u $DEVICE
+ rmdir stub
+
+ # Locate the offset of the fake file
+ OFFSET=$(hd $OUTPUT_FILE | grep 'Boot1 START' | cut -f 1 -d ' ')
+
+ # Convert to number of blocks
+ OFFSET=$(echo 0x$OFFSET | awk '{printf("%x\n",$1/512);}')
+
+ # Validate the offset
+ if [ $OFFSET != $BOOT1_OFFSET ]; then
+ echo "Incorrect offset $OFFSET != $BOOT1_OFFSET" >&2
+ exit 1
+ fi
+
+ bzip2 $OUTPUT_FILE
+ echo 'FAT template boot filesystem created by generate-fat.sh' > $OUTPUT_FILE.bz2.uu
+ echo 'DO NOT EDIT' >> $OUTPUT_FILE.bz2.uu
+ echo "\$FreeBSD\$" >> $OUTPUT_FILE.bz2.uu
+
+ uuencode $OUTPUT_FILE.bz2 $OUTPUT_FILE.bz2 >> $OUTPUT_FILE.bz2.uu
+ rm $OUTPUT_FILE.bz2
+done <<EOF
+ amd64 BOOTx64.efi
+ arm64 BOOTaa64.efi
+ arm BOOTarm.efi
+ i386 BOOTia32.efi
+EOF

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