Compiling from master gives an error

xanthoss · October 14, 2018 at 5:33 PM

Hi there,

Tried to compile (cross-compile) for a RPI (2), created a build host (Ubuntu 1604) and followed instructions but I get stuck:

MODPOST 581 modules

SHIPPED arch/arm/boot/compressed/lib1funcs.S

SHIPPED arch/arm/boot/compressed/ashldi3.S

SHIPPED arch/arm/boot/compressed/bswapsdi2.S

LDS arch/arm/boot/compressed/vmlinux.lds

AS arch/arm/boot/compressed/head.o

GZIP arch/arm/boot/compressed/piggy_data

CC arch/arm/boot/compressed/misc.o

CC arch/arm/boot/compressed/decompress.o

CC arch/arm/boot/compressed/string.o

AS arch/arm/boot/compressed/hyp-stub.o

AS arch/arm/boot/compressed/lib1funcs.o

AS arch/arm/boot/compressed/ashldi3.o

AS arch/arm/boot/compressed/bswapsdi2.o

AS arch/arm/boot/compressed/piggy.o

LD arch/arm/boot/compressed/vmlinux

OBJCOPY arch/arm/boot/zImage

Kernel: arch/arm/boot/zImage is ready

cp: cannot stat 'arch/arm/boot/dts/*.dtb': No such file or directory

I started over, removed the entire dir, maybe I had missed something but again it errors out here. Never cross-compiled something before so new to this, but a novice Linux user though. Any hints or clues what I am doing wrong?

**Iridium** · October 14, 2018 at 5:42 PM Official Post

Are you compiling for LE 8 or 9?

Provide the EXACT commands you have issued from start to error.

xanthoss · October 14, 2018 at 6:08 PM

git clone GitHub - LibreELEC/LibreELEC.tv: Just enough OS for KODI

cd LibreELEC.tv/

PROJECT=RPi DEVICE=RPi2 ARCH=arm tools/download-tool

PROJECT=RPi DEVICE=RPi2 ARCH=arm scripts/clean linux

PROJECT=RPi DEVICE=RPi2 ARCH=arm scripts/unpack linux

cd build.LibreELEC-RPi2.arm-9.0-devel/linux-3a1a31d70660f87ee7ec49ffc3811f633bb0f93d/

cp ../../projects/RPi/devices/RPi2/linux/linux.arm.conf .config

make menuconfig

cp .config ../../projects/RPi/devices/RPi2/linux/linux.arm.conf

cd ../../

PROJECT=RPi DEVICE=RPi2 ARCH=arm scripts/clean linux

PROJECT=RPi DEVICE=RPi2 ARCH=arm scripts/build linux

Some was taken from Openelec's dev guide, which I assumed would work (almost) the same?

**Iridium** · October 14, 2018 at 6:33 PM Official Post

"which I assumed would work" is a dangerous assumption.

I think you should follow the official LE compiling Wiki page Here which does work.

**chewitt** · October 15, 2018 at 5:58 AM Official Post

I'd step back a level. Why are you self-compiling? .. i.e. what changes are you looking to make to an image?

xanthoss · October 15, 2018 at 6:44 AM

Got it working now. I was trying it as a learning experience, trying to add Wireguard to the kernel for my Rpi since I travel a lot.

**chewitt** · October 15, 2018 at 6:54 AM Official Post

FYI, I'm planning to add wireguard support to our kernels once it gets merged.

r4w · November 17, 2018 at 8:57 AM

I'm exploring wireguard too while looking into improving crypto speeds, but I can't see in the Amlogic kernel configuration (make menuconfig) the option CONFIG_NET_UDP_TUNNEL which is a requirement (Installation - WireGuard). All the other kernel requirements are satisfied.

**vpeter** · November 17, 2018 at 9:15 AM

You could enable IP: Foo (IP protocols) over UDP and you will get NET_UDP_TUNNEL too.

r4w · November 17, 2018 at 9:24 AM

Quote from vpeter

You could enable IP: Foo (IP protocols) over UDP and you will get NET_UDP_TUNNEL too.

I will check again, but in the kernel config I didn't spot that either.

r4w · November 20, 2018 at 12:26 PM

vpeter I can't see it with the current kernel config or maybe I'm doing something wrong:

I'm simply running make menuconfig like this: linux-6d8fbb4ee61a7779ac57b5961e076f0c63ff8b65$ PROJECT=Amlogic DEVICE=S905 ARCH=arm make menuconfig

**vpeter** · November 20, 2018 at 12:37 PM

Ah, this kernel version doesn't support such feature. Try CoreELEC

r4w · November 20, 2018 at 11:06 PM

Makes sense now thanks!