Questions tagged [buildroot]

Questions concerning Buildroot, the tool for generating, configuring and using toolchains which can be used to generate Linux systems or parts thereof.

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please help for how to root with Kingroot without being exposed to antivirus [closed]

This app is at high risk, has been banned its operation This app will get the highest Authority on the phone, May be Malicious control phone is there any code for root not exposed to antivirus
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16 views

How do I create a compressed buildroot system image that expands to fill the available storage of the media it is flashed to?

I need to make a Buildroot system for various x86_64 EFI systems with varying storage sizes, but unfortunately, the pc_x86_64_efi config creates an img file with a fixed partition size, not one that ...
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18 views

Busybox alternative to systemd-analyze tool

Is there Busybox tool that would give me similar info to systemd-analyze time, systemd-analyze blame etc? I need this to embedded Linux builded with Buildroot. I tried to use systemd, but after change ...
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29 views

Cannot add systemd-analyze to Buildroot image

I decided to use systemd in my embedded linux system to be able to use systemd-analyze tool. I can add both systemd and systemd-analyze in my config, but after runing my system on Raspberry Pi 4, I ...
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0answers
9 views

Using x-server in buildroot based system gives a blank screen as the process starts, can you disable this screen?

my device has a distro which is based on Buildroot and during boot one of the init.d scripts is activating x-server/x11. During the process initiation, the screen suddenly goes pure white for a second ...
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26 views

How can I enable linux driver on buildroot?

I'm trying to enable IR_MESON from here. http://sources.buildroot.net/linux/git/drivers/media/rc/Kconfig My defconfig as below # Mirrors and Download locations BR2_BACKUP_SITE="http://sources....
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12 views

Starting network: [ 6.178148] ip (252) used greatest stack depth: 5756 bytes left /bin/sh: wpa_supplicant: not found

I entered in /etc/network/interfaces file auto lo iface lo inet loopback auto wlan0 iface wlan0 inet dhcp Then i tried ifconfig. It's showing eth0 Link encap:Ethernet HWaddr 8A:B8:53:87:09:2A ...
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29 views

Error compiling buildroot on Raspberry Pi 3

While compiling buildroot for a Rasperry Pi 3, I get the following error: ERROR: file(bcm2710-rpi-3-b-plus.dtb): stat(/home/rpmuser/buildroot-2019.02.8/output/images/bcm2710-rpi-3-b-plus.dtb) failed: ...
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27 views

/bin/sh: wpa_supplicant: not found

I entered in /etc/network/interfaces file auto lo iface lo inet loopback auto wlan0 iface wlan0 inet dhcp Then i tried ifconfig. It's showing eth0 Link encap:Ethernet HWaddr 8A:B8:53:87:09:2A ...
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0answers
20 views

Buildroot image for Raspberry Pi Zero too big in size

I compiled the image using Buildroot (2020.02.3) by first running make raspberrypi0_defconfig and then by running make menuconfig to enable ccache and remove ifupdown scripts. I then ran make to ...
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13 views

Configure boot options in buildroot

How can boot options be configured (specifically looking to add toram) in an OS image prepared by Buildroot? The idea is to load the OS completely into RAM, eject the bootable media (SD card in ...
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1answer
48 views

Buildroot compile error, librt.so: undefined reference to

I'm trying to compile a Buildroot image using a preconfigured builtin _defconfig file... More specific the riscv64_xwin_defconfig which is a simple setup for a riscv64 image with Xorg builtin. Since ...
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2answers
50 views

Can a user with no password set login with ssh?

First, I want to be clear, I am not asking about just using public key authentication without a prompt. I have a use case where a user must only be allowed access through SSH public key authentication....
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20 views

Building Linux for COM Express type 7 boards

COM Express is a standard for computer-on-module and different vendors have COM Express products like: https://www.congatec.com/en/products/com-express-type7/conga-b7ac.html https://www.kontron.com/...
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201 views

How to make systemd-networkd automatically start a DHCP Server if there isn't one on the network already

I'm trying to setup systemd-networkd so it will automatically start a DHCP server if it notices that there is no DHCP on the network. If there is a DHCP on the network I want systemd to just acquire a ...
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94 views

Buildroot Linux on RISC-V 32-bit no mmu processor

I'm trying to create a buildroot linux image for a 32-bit RISC-V no mmu processor. I've found several builds on the internet but none of them match exactly what I want to do, however I think they ...
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1answer
148 views

/etc/shadow is empty, yet I am prompted for password

I have a board (Pine64) on which I run my custom-built linux distribution (using buildroot). I configure root to have no password, and the resulting /etc/shadow file looks like this: root:::::::: ...
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2answers
640 views

Which file should I modify to mount a user overlay at boot time

I'm working on an embedded device with an arm cortex A9. The kernel version is 4.16.0 and is generated by buildroot 2018.05. The storage memory is an mmc with several partition. U-boot reads the ...
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1answer
612 views

uboot-menuconfig not available in make targets

I'm trying to setup a custom default environment for u-boot while building an embedded Linux system with Buildroot. I was able to achieve this in u-boot standalone, but I'm unable to reproduce the ...
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0answers
209 views

Xfbdev not found after including X (tinyx/kdrive) in Buildroot

I'm trying to add Xorg to an evaluation board for which I've already been provided with a working linux kernel. The evaluation board has an LCD display and I can confirm hardware & drivers are ...
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0answers
28 views

Getting Debian style wpa_supplicant in Buildroot

Currently it seems like the Buildroot package for wpa_supplicant does not include the Roaming Mode functionality that is available in the Debian package. How would I manually include this in my ...
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1answer
159 views

ssh X forwarding on a minimal Buildroot server with read-only root filesystem

I'm trying to get ssh X forwarding working with a very unusual setup Server: Custom Buildroot OS on Raspberry Pi 0 W Read only filesystem xauth installed .Xauthority located in /tmp/.Xauthority and ...
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1answer
4k views

How can I fix “sh: apt-get command not found”?

I just succeded to run pulpino on Zedboard FPGA and I managed to boot an OS on it. But, the problem that there no apt-get command. I checked the following: $ uname -a Linux buildroot 3.18.0-xilinx #1 ...
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0answers
62 views

How to use read-only permissions to prevent corruption on a writeable filesystem?

I'm developing an embedded Buildroot OS for the Raspberry Pi. This system will be turned off by simply removing power (there will be no shutdown timer), therefore it must be able to handle poweroff ...
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1answer
1k views

RPi + Buildroot: random: crng init done (not enough entropy) - how to configure rng-tools

I'm designing a minimal custom Buildroot embedded OS for the RPi0w. My current iteration takes a very long time to fully boot - several minutes with a keyboard and mouse plugged in, and tens of ...
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1answer
93 views

What is the correct Grub configuration to boot a kernel with an initramfs embedded in the kernel image?

I've used buildroot to compile a Linux kernel image with the root file system embedded as an initramfs. But when I go to boot it I see grub select the enctry and then I get a solid cursor in the up ...
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1answer
158 views

Buildroot: compile fbi against kernel headers

I'm adding a generic-package to Buildroot 2019.02.1. This package (fbi) includes <asm/page.h> in the fbtools.c, but the headers are not available in output/target. Compiling the package causes ...
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1answer
51 views

Buildroot date is wrong

When I flash a buildroot image for the raspberrypi3, using the date command will give me 1970-01-01. I have to manually reset that every time. What would be the correct way to handle this? Should I ...
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0answers
154 views

Facing issue in ssh for USB0 Interface buildroot

I am working on building Custom Os using Buildroot for beaglebone black. Configurations: Linux kernel version 4.19.29 I have enabled the Dropbear for SSH. The Script to load the drivers at boot ...
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1answer
138 views

C program does not run on buildroot

I work for buildroot. My purpose work GUI on my buildroot with Gtk3.0 and Gstreamer1.0. I use Olinuxino A13 so I wrote GUI code(Gtk3.0 hello world example) on this with codeblocks. I use Debian wheezy....
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0answers
51 views

Own boot parameter in Linux kernel gives no outprint (Homework)

The task is to write a own boot parameter in the linux kernel that activates printk under the kernel initiation. The Linux kernel version that is edited is 4.16.7 (buildroot 2018.11.2) and my ...
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1answer
99 views

Buildroot date is set to Jan 1, 1970

why does buildroot automatically set the date in the title. And how do I fix that? Or do I have to make a script to manually set that?
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1answer
459 views

PPS GPIO with Buildroot image on Raspberry Pi 3

I using Buildroot trying to build a Linux image for the Raspberry Pi 3 in which I have access to pulse-per-second (PPS) inputs on one of the GPIO pins. First off, I have tried this with the standard ...
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1answer
2k views

Udev - Network cable hotplug event not catched [duplicate]

I'm running a buildroot custom linux (kernel 4.9.87) on a custom board based on an Atmel Sama5d2. I'm trying to configure the network on the eth0 interface using dhcp only at hotplug. Originally, ...
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1answer
342 views

mismatch between kernel version and kernel header

I use an embedded with a bit old kernel 2.6.37. Now we need to update rootfs with more update gcc than the one used on building the image (Instead of 4.3 need to use 5.1, because it will support c++11,...
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1answer
386 views

Linux kernel module development buildroot

I have build a linux kernel for the beaglebone black using buildroot. Now I would like to develop a hello world linux kernel module application: #include <linux/init.h> #include <linux/...
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2answers
955 views

Could not find libmount

During compilation of customized distribution (using buildroot v. 11.2018) I have problem with libmount library (the problem appeared after I had included efl package in buildroot menuconfig - Target ...
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2answers
1k views

Remove busybox from buildroot

As part of Linux hardening we want to remove busybox from filesystem created with buildroot. But I am not sure if system can boot without it. I am quite sure that there are init files that depends ...
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1answer
365 views

How to locate the module that handles DNS resolving in buildroot?

I have 2 different Linux devices, one's kernel is done using ltib (L from now on), and the other's by buildroot (B from now on). I manage to add a DNS resolver to B by using: echo "nameserver 8.8....
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1answer
66 views

nghttp2 w/Buildroot on Raspberry Pi 3

I'm fairly new to buildroot and I'm trying to figure out the best way to get the "nghttp2" package added to my system so that I can utilize it in conjunction with curl on my embedded system. I'm not ...
0
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1answer
486 views

copy driver include file to linux folder

I'm using buildroot for my embedded socfpga system. I have successfully written a driver and an app to test it, following BR usermanual : my_driver_dma : the driver my_dma : the app The ...
0
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1answer
256 views

How to regenerate a complete config file from a kernel Image from buildroot

I have an Image that I generated using buildroot that boots a kernel from an SD card and it works perfectly. I changed a few settings in the buildroot menus (I can't remember which ones) and now ...
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0answers
852 views

How do you prevent uas and usb_storage kernel modules from being automatically loaded when a USB flash drive is connected?

I generate a kernel Image using buildroot that I put onto an SD card to boot from. In buildroot I modularized USB Mass Storage. When I boot up my board without a USB connected to it I can see that ...
0
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1answer
545 views

What kernel modules are necessary for using a standard USB 2.0 flashdrive

I am using buildroot to generate an Image to run linux on an Arm A53. I want to be able to shut off and turn on the ability to see a USB flashdrive on command. I went into the settings of buildroot ...
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1answer
691 views

Read-only filesystem - Considerations and Loss of Functionality

I'm creating an embedded system using Buildroot. Currently, my Buildroot configuration ensures the rootfs is remounted as read/write during startup. However I would like to remove this feature and ...
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2answers
1k views

Why does my kernel menuconfig look corrupted?

I've been using buildroot 2018.02.1 to compile a kernel for an embedded system. The kernel menuconfig used to render just fine, but at some point it stopped being rendered correctly and looks like ...
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2answers
2k views

Buildroot : Using out of tree defconfig

I'm using the tar image "buildroot-2018.02.tar.gz" to generate the linux image (kernel & fs) for my embedded system. To be sure of the minimum configuration I need to recreate the project (later, ...
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1answer
1k views

(Buildroot) “silentoldconfig” error on compile

I just moved an old buildroot folder from an old VM to a newer one to consolidate. I thought that simply moving the folder, along with any dependent folders, and making the appropriate path/name ...
2
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0answers
9k views

ifup shows IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready, then the link becomes 'ready' by itself. What is happening?

I am stuck with some strange behavior comming from my linux system. I have two ethernet interfaces (eth0 and eth1). When trying to set them up for the first time (for example with ifup eth1, or ...
3
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1answer
1k views

How can I make initializing random non blocking pool faster?

I have an issue with my Buildroot generated Linux and rootfs image for Zynq board. The problem is that random nonblocking pool is generated about 2 minutes after boot, just after I get kernel message ...