Installing arduino-cli on Vero 4K+

alzx · 7 February 2021 16:10

hello there
I’d like to install arduino-cli and related stuff on Vero 4K+.
The install procedure from here doesn’t work: the Vero 4K+ has a arm64 architecture ( aarch64) but osmc is armhf and some libraries are 32 bit. The installer can’t detect that, there are some unfixable errors in-between and no workarounds.
These are the related issues on github, with all the details:

github.com/arduino/arduino-cli

Install.sh script misdetects architecture on arm64 kernel with arm32 userspace

opened 06:15PM - 03 Oct 20 UTC

nestukh

os: linux topic: infrastructure type: imperfection

## Bug Report _Bug originally mentioned in https://github.com/arduino/arduino-c…li/issues/292#issuecomment-699613053_ A Vero 4K+ (by OSMC) is a Kodi box which has Debian with aarch64 (arm64) architecture. It's very versatile but it hasn't Xorg installed. It has its own debian repo `apt.osmc.tv` and uses the official `http://ftp.debian.org/debian stretch main contrib non-free` as well. Yes the stable version is still on Debian Stretch but it's very stable. It can be accessed on the command line via ssh over Wi-Fi. The default user is named `osmc`, who has sudo privileges as well. ### Current behavior installing with the command `curl -fsSL https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh | sh` I obtain ``` Installing in /home/osmc/bin ARCH=ARM64 OS=Linux Using curl as download tool TAG=0.13.0 CLI_DIST=arduino-cli_0.13.0_Linux_ARM64.tar.gz Downloading https://downloads.arduino.cc/arduino-cli/arduino-cli_0.13.0_Linux_ARM64.tar.gz main: line 204: /home/osmc/bin/arduino-cli: No such file or directory Failed to install arduino-cli ``` But the binary `/home/osmc/bin/arduino-cli` exists, ergo it's made for the wrong arch, like it was happening in [issue 307](https://github.com/arduino/arduino-cli/pull/307). I manually installed the `arduino-cli` binary [from arduino-cli-152-PR307-linuxarm64.tar.bz2 found in a comment there](https://github.com/arduino/arduino-cli/pull/307#issuecomment-514613081) and it works: the output of `arduino-cli version` with the 152-PR307 version is `arduino-cli Version: 152-PR307 Commit: 77d5613` and can run other subrutines as well. I probably could install the 32 bit armhf architeture like suggested online in some places (like [here](https://askubuntu.com/a/1090440)), but it don't like to mess up things and hope for the best. Space is also limited. It there is a clean solution that you know of, the `avr-g++` binary from the main arduino installer has the same problem on this machine ([issue 73 on toolchain-avr](https://github.com/arduino/toolchain-avr/issues/73)): running a normal command like `arduino-cli compile --fqbn arduino:avr:uno Sketch01`, I'm getting a classic error: ``` Error: build failed: fork/exec /home/osmc/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/avr-g++: no such file or directory Error during build ``` `avr-g++` exists but it's for the wrong arch for sure (it's typical behaviour with wrong arch binaries). But this problem cannot be solved removing the `.arduino15` folder like suggested in many places.

github.com/arduino/toolchain-avr

can't run avr-g++ on an aarch64 machine: official arm64 binary is probably compiled for arm32

opened 06:16PM - 03 Oct 20 UTC

closed 10:52AM - 09 Oct 20 UTC

nestukh

_Bug similar to the one in https://github.com/arduino/arduino-cli/issues/292#iss…uecomment-699613053_ From the link mentioned above: _A Vero 4K+ (by OSMC) is a Kodi box which has Debian with aarch64 (arm64) architecture. It's very versatile but it hasn't Xorg installed. It has its own debian repo `apt.osmc.tv` and uses the official `http://ftp.debian.org/debian stretch main contrib non-free` as well. Yes the stable version is still on Debian Stretch but it's very stable. It can be accessed on the command line via ssh over Wi-Fi. The default user is named `osmc`, who has sudo privileges as well._ I can install the arduino ide from https://downloads.arduino.cc/arduino-1.8.13-linuxaarch64.tar.xz without problems on the command line, using the useful `install.sh` provided. it complains that it cannot find a desktop enviroment but all the toolchain is there. But the `avr-g++` binary from the installer has the same problem on this machine as the `arduino-cli` one ([issue 1004 on arduino-cli](https://github.com/arduino/arduino-cli/issues/1004)): running a normal command like `arduino-cli compile --fqbn arduino:avr:uno Sketch01`, I'm getting a classic error: ``` Error: build failed: fork/exec /home/osmc/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/avr-g++: no such file or directory Error during build ``` `avr-g++` exists, but it's for the wrong arch for sure (it's typical behaviour with wrong arch binaries). But this problem cannot be solved removing the `.arduino15` folder like suggested in many places.

As you can tell, the arduino folks are very collaborative. Even extra collaborative, and so nice all around, I dare to say.

Yes I can compile the code for my microcontrollers on a normal computer. But it requires removing all this stuff from behind the tv, upload the code via usb, than reposition everything. Also, I cannot do that remotely (from out of town) for fixing bugs.
They are a big red led button for rebooting the Vero (via serial via usb), a neopixel bar and a mini oled screen for info on tv programs. These are connected to a normal arduino uno board, that is connected by usb to the Vero. I know the irony of using a 0.96’’ screen for info about stuff on a 60’’ monitor panel.

I could install some related programs:
sudo apt-get install gcc:arm64
sudo apt-get install aarch64-toolchain-osmc
but I only have got one Vero, I don’t want to break things.
Can anyone help? Thanks.

dillthedog · 7 February 2021 17:14

Have you tried hacking the script and hardcoding the ARCH to ARMv7?

initArch() {
	ARCH="ARMv7"
	#ARCH=$(uname -m)
	case $ARCH in

alzx · 8 February 2021 11:05

that time I tried to manually install the related binaries (multiple architectures) and didn’t work (as you can read on github), but your hack did the trick! Yay. It compiled my sketches successfully. I was more focused on installing the aarch64 version, eh.
Thank you a lot, you were much more helpful in few lines than those on the arduino team.

dillthedog · 8 February 2021 20:23

The dual architecture of the V4K continues to produce similar problems from time to time, eg Whats it 'like'?
Sundtek DVB-S USB dongle armhf vs. arm64 Tvheadend incompatibility

As you’ve found, the userland packages and libraries are 32-bit, so the way forward is usually to build for armhf.