It seems that debian-cd (re)builds its own efi.img and doesn't
add the dtbs but only the EFI/ subdirectory from the d-i
efi.img.
This might fix the problem, please take it with a grain of salt
because I was unable to actually test it. I've tried the
commands by hand though.
diff --git a/tools/boot/bullseye/boot-arm64
b/tools/boot/bullseye/boot-arm64
index d954dff3..7c55d408 100755
--- a/tools/boot/bullseye/boot-arm64
+++ b/tools/boot/bullseye/boot-arm64
@@ -84,9 +84,11 @@ cat cdrom/debian-cd_info.tar.gz | (cd boot$N/; tar
zx)
if [ -d boot$N/grub ] ; then
echo " Adding EFI boot code for $ARCH on CD$N"
- # Move GRUB files to the right place.
+ # Move GRUB and DTB files to the right place.
mkdir -p $CDDIR/EFI/boot
mcopy -n -s -i boot$N/grub/efi.img '::efi/*' $CDDIR/EFI
+ mkdir -p $CDDIR/dtb
+ mcopy -n -s -i boot$N/grub/efi.img '::dtb/*' $CDDIR/dtb
mkdir -p $CDDIR/boot/grub
mv boot$N/grub/* $CDDIR/boot/grub/
rmdir boot$N/grub
--
-michael