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0
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1answer
19 views

Segmentation fault when running lvcreate

I'm trying to use a minimal buildroot based linux system live cd, and I need to do some partitioning, preferably using LVM. But LVM doesn't seem to work. I get segmenetation fault when running ...
0
votes
1answer
24 views

rootfs.ubi doesn't allow login to shell

I have built rootfs.ubi using buildroot 2012.11. On boot I'm not able to login to buildroot login prompt also. Linux is built with UBI and UBIFS support. Earlier I encountered this behaviour if ...
1
vote
0answers
21 views

Add a driver module to embedded linux

I have a task that consists in implementing a driver for an RF module. The RF module communicate with the blackFin609 microcontroller using UART. In a first step i created a uClinux image and ...
0
votes
2answers
73 views

Missing `/dev/sda` when building a minimal kernel for VMware

I'm trying to build a minimal Linux kernel using buildroot that I want to run on VMware, among other platforms. However, when I boot the kernel it doesn't recognize the hard drive (i.e., no /dev/sda). ...
0
votes
0answers
52 views

No response to DHCP broadcast

Following on from this question, I'm still trying to get ethernet and DHCP working on a buildroot-based embedded Linux board. Here's what I'm trying: The ethernet interface is brought up using ...
0
votes
1answer
57 views

How to set minimum/specific rootfs size in buildroot

I am using buildroot 2016.02 and building for the Raspberry Pi 2. After I boot the system I have very little free space on /. How can I specify that I want the rootfs size to be a specific size like ...
1
vote
1answer
121 views

Raspberry Pi 2 Custom Kernel with initramfs

I'm desperately trying to get a self-compiled kernel running together with an initramfs. It worked on the old raspberry, but somehow I can't get it to run. What I'm trying to do exactly: Load kernel, ...
0
votes
0answers
25 views

How to fix wrongly linked mono lib in buildroot image?

With the current buildroot 2015.11.1 configured to use mono, the libMonoPosixHelper.so will be searched in the /home/userX/buildroot/output/host/usr/lib/ path. This path and file may exist on my ...
0
votes
0answers
115 views

How to wait for a USB drive to be recognized/mounted during boot to start own service?

I have a custom buildroot build with minimalistic kerenel for the RPi and busybox as init and shell. At the end of the boot process I start my own service which tries to access the usb drive. However ...
1
vote
1answer
224 views

How to install kernel development headers to staging with BuildRoot?

I am planning to do some Rasperry Pi C/C++ kernel module development using BuildRoot 2015.08.1. What works: I can build a kernel and a rootfs and boot the Raspberry Pi. I can build/rebuild a "hello ...
3
votes
1answer
286 views

How to fix “deauthentication by local choice”?

I built an embedded Linux using Buildroot and I have some trouble to stay connected to my AP. Cannot get an IP address more than once. I use wpa_supplicant to connect to my AP using WPA2-PSK. It ...
5
votes
1answer
214 views

What is the purpose of listing the rootfs in /etc/fstab?

In BuildRoot 2015.08.1 /etc/fstab contains the following line. /dev/root / ext2 rw,noauto 0 1 On my encrypted Ubuntu laptop /etc/fstab contains the following line. /dev/mapper/ubuntu--vg-root / ...
1
vote
1answer
589 views

Usb serial cable (prolific) not working with ftdi_sio driver on rpi-buildroot image

I'm using a raspberry pi to control a LED matrix display with a Prolific USB to serial cable (067b 2303). Using the default raspian image it works perfectly, however with a custom buildroot image (...
1
vote
1answer
57 views

Building RPM results in nothing generated in RPMS directory

I am building a RPM on RHEL. After following https://fedoraproject.org/wiki/How_to_create_an_RPM_package, I put my front.tar.gz in /rpmbuild/SOURCES, and make the spec file like this: Name: front ...
0
votes
1answer
448 views

How do I overwrite multiple files with one recipe in Yocto

I have a layer that I am writing for Yocto. I want to have two configurations for the hardware. One would be a standard generic config, one would be a use case specific config, and I can't figure ...
4
votes
1answer
116 views

How to write to an .img file with two different partitions?

I have been working on building a Linux based OS for Raspberry-pi using buildroot. I am generating the required empty .img file using "dd" and "fdisk" utilities. I am creating two empty partitions as ...
5
votes
3answers
702 views

sshd not starting after boot on embedded linux built with buildroot?

I've done a minimal install using buildroot's default config for the Raspberry Pi. I also selected openssh and openssl from menuconfig: Package Selection for the target ---> [*] Networking --...
2
votes
1answer
108 views

Embedded Linux USB Audio Issue

I have a Corewind WiFiG25 board based on the AT91SAMG25 400 MHz following Arm processor running Linux 3.6.9 built using Buildroot. I am attempting to play mp3 files using mpg123 connected to an ALSA ...
4
votes
2answers
586 views

Build linux-menuconfig results in: “*** Error during update of the configuration.”

I try to build the Linux kernel with Buildroot using Docker. I've created a simple Docker image: FROM debian:7 MAINTAINER OrangeTux RUN apt-get update && \ apt-get install -y \ ...
1
vote
1answer
493 views

What is the proper way to activate VGs/LVs automatically on boot?

I have used Buildroot to create a system that runs in RAM on my ARMv5 Kirkwood SoC -based NAS-box. I use BusyBox as my init system, and /dev management is done using devtmpfs only. I've selected LVM2 &...
0
votes
0answers
154 views

Second boot of Linux - Kernel Panic

I am currently working on a Linux distribution created with buildroot for an ARM device. The file system is JFFS2. I am booting with Das U-Boot. I am able to successfully boot exactly once. My ...
1
vote
0answers
287 views

Make bootable USB drive on Mac

I've tried to make a bootable USB drive — using Syslinux & Buildroot — on my Macbook Air. When I boot up I get something like this error. "Non-system disk, press any key to restart" Does that ...
0
votes
2answers
1k views

Buildroot - missing i2c kernel modules

I've used Buildroot to build a minimal operative system. During the configuration step with the menuconfig utility I specified to install I2C tools. The option was is Target Package -> Hardware ...
0
votes
0answers
26 views

Standard/Common location for cross compilation toolchain

Does a standard or common location exist for installing cross compilation tools? I can easily pick my own location and it works fine, so I'm just looking to find the most ideal location. Based on ...
0
votes
1answer
104 views

Compiler for Linux kernel

Can Linux kernel be compiled with gcc configured for Linux executables (not bare metal)? I have noticed that Buildroot builds cross-compiler arm-linux-gnueabi to compile everything and became curious. ...
2
votes
1answer
948 views

Error compiling buildroot

I updated my buildroot for the version "2014.08" (stable version) and I updated the Kernel version (3.12.26) of my project, when the buildroot try to build the linux-headers-3.12.26 package, occurs ...
2
votes
2answers
294 views

Doubts about the Buildroot configuration

How can I update my Buildroot without losing my configuration, packages, etc.? And how can I update the Linux kernel that is configured? Is it just change the url from git repository in menuconfig? ...
1
vote
1answer
120 views

Applying patch to the uClibc

I have a buildroot package that I need to build. When I issue the 'make' command, it runs until it errors out with "lutimes undeclared". After lengthy research, it appears that uClibc needs to be ...
0
votes
2answers
189 views

Removing duplicated files in the rootfs - to speed up booting time, and improve memory usage

With Buildroot I'm making images for my Embedded Linux Hardware. Mainly I'm trying to speed up the boot sequence (and on the way lower the memory usage), where I've tried many techniques successfully. ...
0
votes
0answers
177 views

Can't access GPIOs when switching to systemd, but why?

I'm using this ARM AT91 Sam9x5ek Embedded Device, with my Linux Images made by a Buildroot. Usually my init-system is Busybox, now I changed it to systemd. Since then I can't access the GPIO anymore, ...
1
vote
1answer
596 views

Unable to add serialport (nodejs module) when generating filesystem and cross-compiling tools for an ARM processor

I am using buildroot (version 2013.08.1) to generate the filesystem and cross compiling tools to implement embedded linux on a i.MX233 processor (ARM architecture). I add the serialport module by ...
0
votes
1answer
744 views

How can I boot with a compressed rootfs?

My problem is: I cannot use compressed rootfs (the kernel crashes during boot) but uncompressed ones work fine. What I did: I'm using Buildroot 2013.11 to generate Images for my embedded Linux (2.6....
1
vote
1answer
423 views

WARNING: at kernel/irq/handle.c - after changing rootfs, but why?

today I changed from an image with initramfs to an image with separate kernel and rootfs. Theses images are used for an Embedded System (ARM9 SAM9G25), that is runnging with an Linux 2.6.39. During ...
1
vote
0answers
249 views

Why is my embedded Linux unable to detect the sd device?

I have this ARM9 SAM9G25 embedded System, running a Linux 2.6.39 Kernel and a Busybox. I put the Images (of the bootloaders, and the linux+initramfs) on a SD so that in the end the system is booting ...
5
votes
1answer
1k views

How to set the CPU freq. in Linux?

I'm using this ARM9 SAM9G25 embedded system, that when switched on, is only online for a few seconds and because I want to speed up the whole process, I'd like to check the CPU frequency, and set it ...
2
votes
1answer
694 views

How to do an automated measurement for the boot time for freshly build images?

I want to generate images for an embedded system and automatically measure the time they took for booting (especially for different systems). I'm using Buildroot to generate my Linux Images. I ...
12
votes
2answers
12k views

How to extract files from uImage?

Buildroot is generating Images for an embedded device where they should run on. This is working very well. In those Images the rootfs is included. Due to some research I'd like to look into that ...
2
votes
1answer
1k views

I want to understand Buildroot - the 3 compression config options (kernel, initramfs & rootfs)

I'm using buildroot to generate my images and for sure there is the option of compression with the help of different methods (LZO, LZMA, gzip, ...). So far i found these 3 compression options in ...
0
votes
3answers
497 views

How can I add a script to embedded Linux

I have a script (let's say Hello World), that I want to include to my embedded Linux. I'm using Buildroot and want to start the script in Busybox. But because I'm cross-compiling for the target I'm ...
1
vote
1answer
484 views

Change the root filesystem on an embedded system

I'm using Buildroot to generate an embedded Linux with a kernel v. 2.6.39, which in the end starts busybox. Everything works fine when building with Initramfs as "rootfs". But Initramfs isn't the best ...
2
votes
0answers
486 views

Why is my /etc/hosts.deny file being ignored?

I am using a small embedded linux setup generated by buildroot to run on a x86 device. It was generated to use busybox init system and also runs dropbear so I can ssh into the device. I wanted to ...
2
votes
1answer
3k views

buildroot compiling driver

I'm using Buildroot for compiling embedded linux. It works well because I have target Makefile configurations, but now I need driver for my usb devices. I manage to compile Qt appilactions(c++) on my ...
2
votes
1answer
3k views

Linaro toolchain libstdc++.so.6 missing

I'm trying to run the arm linux gcc (linaro 2013 toolchain) and am getting the following error: arm-linux-gnueabihf-gcc: error while loading shared libraries: libstdc++.so.6: cannot open shared ...
1
vote
1answer
895 views

Buildroot OpenGL Capable Backend

I'm trying to configure QT 5 through buildroot and some options are not available with the message requires an OpenGL-capable backend. I'm using buildroot 2013.08-rc1 but the same message comes up ...
1
vote
1answer
1k views

No make target “uImage” with Buildroot 2013.05

After enabling Linux Kernel option and setting the Kernel binary format to uImage, I always get the following error: make[1]: *** No rule to make target `uImage'. Stop. My buildroot configuration ...
2
votes
0answers
519 views

How to configure buildroot to add a sound device?

I've used a given board configuration to reconfigure it for my individual board. My board has a CS4270 sound device of Cirrus Logic. My uImage is booting successfully on my target hardware, but an ...
0
votes
1answer
124 views

Linux via Buildroot doesn't include alsa-utils

After following these instructions from here and from here, my booted Linux does not include ALSA-Utils like "aplay". But I have set all ALSA options. Any idea what's wrong? I also found this but I ...
1
vote
1answer
614 views

Unable to get embedded device to ping anything on the network

I have an embedded device, built using buildroot, kernel version 3.6.11 running busybox. The kernel is built with completely default options. I have configured the device according to what the network ...
3
votes
3answers
2k views

Adding Buildroot Package

I'm trying to add a package to buildroot, but I'm not having much success. The package I'm trying to add is an autotools package called scew. I've followed the buildroot guidelines about adding ...
0
votes
0answers
327 views

Buildroot: Unknown own user

I crated an image with buildroot. Everything went smooth. When I untarred the bz2 image in vmware and tried to boot into it then I observed an issue, in which, system is unable to recognize any user, ...