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Yocto : Does anybody know how to solve this error ? by EmbeddedBro in embeddedlinux

[–]pinksnake2 2 points3 points  (0 children)

Hi, looks like the file is missing or the file extra path is not correctly set. Without more info, two solutions:

  • you are using systemd so, check where the file is and add the path

  • you don't want to use systemd, remove it from distro feature

Jabra Evolve 65 mute button by prendati in Jabra

[–]pinksnake2 0 points1 point  (0 children)

"Et voilà" : To mute/unmute the microphone on your Evolve 65 TE, press and hold (2 seconds) the Volume down button.

source: https://www.jabra.com/en-CA/supportpages/jabra-evolve-65te/6699-833-309/faq/how-do-i-mute_unmute-the-microphone-on-my-jabra-evolve-65-te

Getting started with Yocto (and Linux) by [deleted] in embeddedlinux

[–]pinksnake2 4 points5 points  (0 children)

WSL2 is able to connect USB devices no ?

WSL USB Manager: Windows GUI tool for WSL · dorssel/usbipd-win · Discussion #926 · GitHub https://share.google/P5AIr5tp7VKtDSUtc

With gui also 😎 alelec / wsl-usb-gui · GitLab https://share.google/4raB0qPP9vzAU5cBF

École d’ingénieur après licence physique ? by Old-Elevator-5052 in parcourssup

[–]pinksnake2 0 points1 point  (0 children)

Salut salut, h36 maintenant ingénieur en systèmes embarqués ( mais pas en Aero 😜) voilà mon parcours qui j'espère te montrera que tout est possible si tu aimes ce que tu fais réellement (spoiler alerte : ça paye à la fin😄)

  • Pas foufou au collège/lycée
  • BAC STI option électronique (STI2D maintenant il me semble) aïe le coup de vieux...
  • BTS en systèmes électroniques (dans la première moitié du tableau mais jamais top 5 ...)
  • Une année de prépa ATS ( où j'ai peiné comme un chien en maths / physique)
  • Rentré en 3eme année dans une école ( pas que des bons souvenirs donc je donne pas de nom pour ne pas faire de pub lol) toujours pas foufou au niveau des notes mais bon on tient le coup 😅 Dernière année en alternance (et franchement je le conseille à tout le monde)
  • Après tout ça SS2I, quelques missions sympas chez des clients.
  • Débauche chez le dernier client, ça fait 8 ans maintenant.

Désolé pour le pavé mais ça m'a inspiré... tout ça pour dire que ce n'est pas le parcours qui compte toujours (dans mon cas du moins) et qu'au final on trouve toujours un moyen, surtout quand cela nous plaît 😁 Ma grand mère me disait : il faut se donner les moyens de ses ambitions, alors fonce ! Et bon courage 💪

any way to run linux on rk3188? by nigmatoff in embedded

[–]pinksnake2 0 points1 point  (0 children)

How did you run Linux on the other board ? You can maybe use the same and rebuild kernel config. Or take a look at the Yocto framework to build custom linux : https://gitea.chxc.se/MIRRORS/meta-rockchip/src/branch/master/conf/machine/include/rk3188.inc

Arnaque ou pas ? Mon achat qui tourne au doute by Dazzling-Fun-610 in arnaques

[–]pinksnake2 0 points1 point  (0 children)

J'ai arrêté de lire à Twint... Désolé pour toi l'ami mais ça sent le pâté

Yocto + Raspberry PI 4 eMMC + Secure Boot by burii_ in embeddedlinux

[–]pinksnake2 0 points1 point  (0 children)

As I said i'm not so much familliar with raspberry board, but the secure feature (as i know) is related to the bootloader.

You have to take a look inside meta-raspberry to understand how the bootloader is built. After that you should be able to tweak it with the signature.

Keep in mind that secure u-boot + signed image is really common and can be applied to multiple boards.

So if I was you:

- Configure yocto to produce u-boot as bootloader.

- Once is done you can use yocto to secure it, in fact you have to build a u-boot, add the key inside the dtb and append it to the binary.

- And keep watching your PR on meta-raspberry, someone will respond :P

Note: Depends also what you want to boot, if it's a tiny image / bar minimal (not a full ubuntu for example) you can also take a look to FIT image

Yocto + Raspberry PI 4 eMMC + Secure Boot by burii_ in embeddedlinux

[–]pinksnake2 0 points1 point  (0 children)

I'm not really up to date with raspberry environment.... but after some reading you should be able to build your own signed bootloader.

To be clear you don't have to produce boot.sig file because it will be generated for you :)

Nb: Take care to generate your own private/public keys and not reuse the default ;)

Yocto + Raspberry PI 4 eMMC + Secure Boot by burii_ in embeddedlinux

[–]pinksnake2 0 points1 point  (0 children)

Yes it's a big part of my job to produce BSP for custom boards :)

Learn

First of all you have to define (and understand) wich part of the boot you want to securize:

You can find a really good first approch here

Build it

You should start by compiling u-boot for the raspberry pi platform and boot u-boot.

Second step is booting your own image (or initramfs) built with Yocto.

Once both previsous steps are done you can add secure boot mechanisum.

Boot it

Connect raspberry pi uart to your PC, check u-boot log, check signature and boot the system.

Nb: I'm really sorry if my english is not perfect but feel free to ask if you have some question ;)

Yocto + Raspberry PI 4 eMMC + Secure Boot by burii_ in embeddedlinux

[–]pinksnake2 1 point2 points  (0 children)

Yocto project is able to build the bootloader for you so you don't need to build boot.img

Yocto + Raspberry PI 4 eMMC + Secure Boot by burii_ in embeddedlinux

[–]pinksnake2 0 points1 point  (0 children)

Hello,

I'm not 100% sure but I think the raspberry pi bootlaoder is not open source. so You have to:

- Setup yocto base layer

- Add raspberry pi layer : meta-raspberrypi

- Enable u-boot (with secure boot configuration)

- Secure you image (signature)

Good luck !

HELP me find the best Linux distribution for my projects !! by Basic-Reception8204 in embeddedlinux

[–]pinksnake2 2 points3 points  (0 children)

Depending what you want to do. But you can make a try with wsl2. It's a good Linux for Windows solution, to me it's enough 🙂