Need a little help compiling stock Prusa firmware  

RE: Need a little help compiling stock Prusa firmware

Which prusa repository do you try to compile? Where did you get the command line?

RE: Need a little help compiling stock Prusa firmware

https://github.com/prusa3d/Prusa-Firmware-Buddy

I’ve tried running the commands from two separate raspberry pi’s running Linux (Octoprint image and Mainsail image).  I’ve also now tried on Windows 10 too, after downloading Python and running with elevated privileges, it still errors out while trying to build the files.  All the systems I’ve tried it on download all the files needed and don’t error out until it gets to building the boot file.

I’ve imaged another Linux system and am trying again.  I have another Buddy board that I installed into the printer (I would never have just blown out the firmware without a backup plan) but the other board I have with Prusa firmware is version 1.0.0 and the one I need to flash is 1.0.7.

Posted by: @zoltan

Which prusa repository do you try to compile? Where did you get the command line?

RE:

Same today on a new pi image

pi@octopi:~/Prusa-Firmware-Buddy $ sudo python3 utils/build.py --preset mini --build-type debug
Downloading ninja-1.10.2
Extracting ninja-1.10.2
Downloading cmake-3.22.5
Extracting cmake-3.22.5
Downloading gcc-arm-none-eabi-10.3.1
Extracting gcc-arm-none-eabi-10.3.1
Downloading clang-format-9.0.0-noext            
Extracting clang-format-9.0.0-noext
Downloading bootloader-mini-2.0.2
Extracting bootloader-mini-2.0.2
Downloading mini404-e72651a
Extracting mini404-e72651a
Installing Python package ecdsa
Installing Python package polib
Installing Python package littlefs-python
Installing openocd user-config to /home/pi/Prusa-Firmware-Buddy/utils/debug/10_custom_config.cfg
Building mini_debug_boot
Traceback (most recent call last):
  File "utils/build.py", line 800, in 
    main()
  File "utils/build.py", line 772, in main
    if args.store_output is not None else False)
  File "utils/build.py", line 308, in build
    check=False)
  File "/usr/lib/python3.7/subprocess.py", line 472, in run
    with Popen(*popenargs, **kwargs) as process:
  File "/usr/lib/python3.7/subprocess.py", line 775, in __init__
    restore_signals, start_new_session)
  File "/usr/lib/python3.7/subprocess.py", line 1522, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
OSError: [Errno 8] Exec format error: '/home/pi/Prusa-Firmware-Buddy/.dependencies/cmake-3.22.5/bin/cmake'
pi@octopi:~/Prusa-Firmware-Buddy $ 

pi@octopi:~/Prusa-Firmware-Buddy $ sudo python3 utils/build.py --generate-dfu --bootloader yes
[sudo] password for pi: 
Building mini_release_boot
Traceback (most recent call last):
  File "utils/build.py", line 800, in <module>
    main()
  File "utils/build.py", line 772, in main
    if args.store_output is not None else False)
  File "utils/build.py", line 308, in build
    check=False)
  File "/usr/lib/python3.7/subprocess.py", line 472, in run
    with Popen(*popenargs, **kwargs) as process:
  File "/usr/lib/python3.7/subprocess.py", line 775, in __init__
    restore_signals, start_new_session)
  File "/usr/lib/python3.7/subprocess.py", line 1522, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
OSError: [Errno 8] Exec format error: '/home/pi/Prusa-Firmware-Buddy/.dependencies/cmake-3.22.5/bin/cmake'

RE:

This will not build you a bootloader, the bootloader parameter only indicates whether you have on the board installed or not installed the bootloader, so the build will take it in account.

It will build you the only non signed fw for which you have to use the buddyboard with broken appendix - loosing the warranty.

RE: Need a little help compiling stock Prusa firmware

That’s fine, I already broke the appendix to install Klipper. Whether I try with the bootloader option or not, I still get the same error trying to compile. I don’t care whether it’s signed or not. I’d like to use the newer revision board for every day usage but can’t manage to compile the stock Mini firmware on anything with the official repo.  I’ve tried two different Pi Linux installations with the above errors and get errors on windows 10 too.  I guess I’ll wait and hopefully the repo script will be fixed at some point. (Or someone can point out what I am doing wrong)

RE: Need a little help compiling stock Prusa firmware

how do you plan to put the compiled FW to the printer? via dfu, HW programmer or from flashdisk?

having bootloader destroyed you can not flash the FW from flash disk. 

Is there any reason you need the debug FW?

first I would recomend to compile python3 utils/build.py --preset mini  without debug parameter. Not sure you need it, as you probably do not use the debugger and second, the debug package will be larger to share the space with bootloader - it is used by programmers, they can flash the FW directly by HW programmer - do you have this option?

I just run the script without debug parameter and it works (W10) 

RE:

I have a Pi that I used to flash Klipper in dfu mode.  From my understanding, I will be able to flash the Prusa firmware the same way.  Once the Buddy board is in dfu mode, flash it via the micro USB cable hooked to the Pi.  (Complied as firmware.dfu)  it’s the same process as when I flashed Klipper in dfu mode, is it not?

i get the same error on every machine when trying to compile.

pi@octopi:~/Prusa-Firmware-Buddy $ sudo python3 utils/build.py --preset mini
[sudo] password for pi: 
Building mini_release_boot
Traceback (most recent call last):
  File "utils/build.py", line 800, in 
    main()
  File "utils/build.py", line 772, in main
    if args.store_output is not None else False)
  File "utils/build.py", line 308, in build
    check=False)
  File "/usr/lib/python3.7/subprocess.py", line 472, in run
    with Popen(*popenargs, **kwargs) as process:
  File "/usr/lib/python3.7/subprocess.py", line 775, in __init__
    restore_signals, start_new_session)
  File "/usr/lib/python3.7/subprocess.py", line 1522, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
OSError: [Errno 8] Exec format error: '/home/pi/Prusa-Firmware-Buddy/.dependencies/cmake-3.22.5/bin/cmake'
pi@octopi:~/Prusa-Firmware-Buddy $

RE: Need a little help compiling stock Prusa firmware

If you run the 'file' command on the file that throws the OSError:

$ file /home/pi/Prusa-Firmware-Buddy/.dependencies/cmake-3.15.5/bin/cmake
/home/pi/Prusa-Firmware-Buddy/.dependencies/cmake-3.15.5/bin/cmake: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.18, BuildID[sha1]=def01fb69726bbc12fd383b9c5ccab1b2adb1d23, stripped

you'll see that it's recognized as a 'ELF 64-bit LSB executable, x86-64' meaning that it's only going to work on a Linux machine running on an Intel or AMD processor. I ran into the same thing and had to use a VM running linux to build the firmware, then transfer it to my pi for flashing with dfu-util.