From aece8f5ae8d15e5e79b8e34a176895209709afb6 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Mon, 11 Apr 2022 15:25:27 +0100 Subject: [PATCH] scripts/gen_image_generic.sh: generate reproducible EFI filesystem Generate FAT filesystem for EFI boot in a reproducible way: * use '--invariant' option of mkfs.fat * set timestamps of all files to SOURCE_DATE_EPOCH * make sure files are ordered locale-independent Signed-off-by: Daniel Golle --- scripts/gen_image_generic.sh | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/scripts/gen_image_generic.sh b/scripts/gen_image_generic.sh index 6a01c813d7..5e37224736 100755 --- a/scripts/gen_image_generic.sh +++ b/scripts/gen_image_generic.sh @@ -31,8 +31,9 @@ dd if="$ROOTFSIMAGE" of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc if [ -n "$GUID" ]; then [ -n "$PADDING" ] && dd if=/dev/zero of="$OUTPUT" bs=512 seek="$((ROOTFSOFFSET + ROOTFSSIZE))" conv=notrunc count="$sect" - mkfs.fat -n kernel -C "$OUTPUT.kernel" -S 512 "$((KERNELSIZE / 1024))" - mcopy -s -i "$OUTPUT.kernel" "$KERNELDIR"/* ::/ + mkfs.fat --invariant -n kernel -C "$OUTPUT.kernel" -S 512 "$((KERNELSIZE / 1024))" + [ "$SOURCE_DATE_EPOCH" ] && find "$KERNELDIR"/ -mindepth 1 -execdir touch -hcd "@${SOURCE_DATE_EPOCH}" "{}" + + LC_ALL=C mcopy -m -s -i "$OUTPUT.kernel" "$KERNELDIR"/* ::/ else make_ext4fs -J -L kernel -l "$KERNELSIZE" ${SOURCE_DATE_EPOCH:+-T ${SOURCE_DATE_EPOCH}} "$OUTPUT.kernel" "$KERNELDIR" fi -- 2.30.2