scripts/gen_image_generic.sh: make ext4 bootfs reproducible

Set fixed timestamp for kernel other files in /boot filesystem. This should help making x86 *combined* images reproducible. Signed-off-by: Daniel Golle <[email protected]>
ningking1988 · Mar 28, 2022 · 068ea2c · 068ea2c
1 parent 103ad90
commit 068ea2c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/scripts/gen_image_generic.sh b/scripts/gen_image_generic.sh
@@ -34,7 +34,7 @@ if [ -n "$GUID" ]; then
     mkfs.fat -n kernel -C "$OUTPUT.kernel" -S 512 "$((KERNELSIZE / 1024))"
     mcopy -s -i "$OUTPUT.kernel" "$KERNELDIR"/* ::/
 else
-    make_ext4fs -J -L kernel -l "$KERNELSIZE" "$OUTPUT.kernel" "$KERNELDIR"
+    make_ext4fs -J -L kernel -l "$KERNELSIZE" ${SOURCE_DATE_EPOCH:+-T ${SOURCE_DATE_EPOCH}} "$OUTPUT.kernel" "$KERNELDIR"
 fi
 dd if="$OUTPUT.kernel" of="$OUTPUT" bs=512 seek="$KERNELOFFSET" conv=notrunc
 rm -f "$OUTPUT.kernel"