A family of processor architectures used in many embedded applications, network and other appliances, and almost all smartphones.

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Move/Change boot file system

I have a webcam Sunluxy 720p and I need to adapt the configuration to my needs. The / file system is read-only. I have access to u-boot via UART/USB cable. I can also connect via telnet as root. ...
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5 views

802.11ac USB dongle support in Linux

(cross-post from Network Engineering community) Is it reasonable to expect to be able to get a 802.11ac dual-band USB wireless dongle to work correctly on Debian (wheezy) on an ARM platform (using ...
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1answer
823 views

Error installing gdb-arm-linux-gnueabi

I get an error when I try to install the gdb-arm-linux-gnueabi package. This is the error that I obtain when I run apt-get install gdb-arm-linux-gnueabi: $ env LC_ALL=C sudo apt-get install ...
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7 views

Change device framebuffer to use overlay layer

I'm using atmel-hlcdc driver to control a LCD panel and an application uses the /dev/fb0 framebuffer created by the driver. The display works fine except that the panel's standard orientation is ...
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13 views

initramfs cannot find folder/directory [duplicate]

I have just compiled a kernel for my armv7 (armhf) but for some reason it is not letting me specify the uuid as you can see below this is the line for the mount (the uuid below is not the real one, ...
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1answer
15 views

compling kernels for armhf

I am trying to compile my own kernel but I am having some issues with understanding. I am using the latest kernel available from kernel.org. My issue is at current: I have zero clue on what options ...
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9k views

Cross compiling expect for ARM

I have downloaded expect5.4 . I'm trying to cross compile it for ARM(PandaBoard) running stripped down version of linux. In the initial setup of configuring , I try Shell$ ./configure --host=ARM ...
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1answer
114 views

How do I properly add Chromium to my Yocto linux distribution

Built Yocto (Poky fido branch) linux distro for Raspberry Pi 2 following this excellent tutorial Part 1. Now trying to run Chromium. Added meta-browser to my bblayers.conf Added chromium recipes ...
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13 views

member ../lib/lk/liblk.a(debugfs.o) in archive is not an object, error while cross compiling perf

i get the following error when i try to cross compile perf tool for arm ../lib/lk/liblk.a: member ../lib/lk/liblk.a(debugfs.o) in archive is not an object what i have done ? cd ...
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24 views

U boot and armhf installation

I am currently trying to install ANY linux distro onto an external HD. My goal is to boot using the external device, but my problem at the moment is that I am unable to achieve this I try to boot the ...
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7 views

Using two memory controllers with SPARSE_MEM on AT91SAM9G45

There are lot posts on this problem in google, but I have tried all the solutions but they are not working for me, so I'm posting here… I am working with AT91BootStarp 3.5.9 with linux kernel 3.6.9. ...
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1k views

Build Linux and run it (uImage) on the Beagle board - xM

I'm working on some project where I'm using the Beagle board - xM Rev C. Power supply is 5V/2A adapter. My task is porting Linux Angstrom on the board but I have some problems. I have choosen Linux ...
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1answer
745 views

Installation of QEMU, GCC for ARM in RHEL

We are setting up a lab which has the QEMU system to emulate an ARM processor and run assembly programs. The lab is currently setup with the host operating system as Ubuntu. We are migrating the lab ...
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4answers
5k views

Installing a cross-toolchain to build ARM binaries on Debian

I tried to install a cross toolchain so I could build Linux kernel on amd64 (Debian testing "jessie") for my ARM system. I have this entry in sources.list: deb http://www.emdebian.org/debian sid main ...
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1answer
192 views

cannot execute binary file

I have a application that gives the error: nhsupsserver: cannot execute binary file I read some texts and the most speak about an architecture mismatch and executable file. The line that ...
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1answer
805 views

No ttyUSB when connecting USB-RS485 to Beaglebone Black

I'm trying to connect a externally powered board to control the motors of a robot to my BeagleBone Black. I'm using ssh over USB(the mini-usb) to control the Beaglebone from my laptop. The BBB is ...
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11 views

Device Tree Blob (binary)

We have got armv7 (freescale IMx6DL) board, for which we have ported arch Linux. after building iuf we see our .dts file it doesn't include all peripheral, buses etc. Can anybody tell us how to ...
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4answers
45k views

What do the flags in /proc/cpuinfo mean?

How can I tell whether my processor has a particular feature? (64-bit instruction set, hardware-assisted virtualization, cryptographic accelerators, etc.) I know that the file /proc/cpuinfo contains ...
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2answers
178 views

Installing linux on a tablet

I would like to install linux on my tablet. It has Cortex A9 processor (RockChip RK2928), 512MB RAM and 4GB internal memory. My question is: is there any linux distro that would work on it? I tried to ...
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815 views

Cross-compiling OpenSSH for Android

I'm working on compiling OpenSSH for Android based on this answer at Stack Overflow. Here's what I've done so far: Building on Ubuntu 14.04 amd64. apt-get install build-essential ...
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2answers
135 views

Running X86 binaries on armv7

I am trying to run a SNBC USB printer on Raspberry Pi2. For that I need to copy the filter binary of the SNBC USB printer to /usr/lib/cups/filter. But the filter binary is compiled using a x86 ...
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1answer
69 views

Platform Device Drivers

I was just going through the code of kernel. I have a raspberry Pi board. I want to interface the touch screen with my board. I want to develop the Platform driver for that. As per the documentation ...
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1answer
32 views

A question about OpenOCD

I believe what I am asking is extremely specific, but keeping hope that I might get some direction I have used a clone ST- Link v2 programmer to download code into a NRF51822 Cortex M0 SOC from ...
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0answers
56 views

Debian: How to resolve relocation error?

I am running Debian 7.1. I tried to apt-get install -f, and messed up. All command line returns ln: relocation error: /lib/arm-linux-gnueabihf/libc.so.6: symbol _dl_find_dso_for_object, version ...
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1answer
52 views

Cross compiling a software module

I'm trying to compile dropbear with the GNU ARM tool chain. I've went through this guide and managed to successfully build all the required tools. They are located in a directory: ...
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88 views

QEMU Aarch64 and networking connections

I just set up an ARM64 image using QEMU and I'm trying to access the internet from within the binary. The host OS(Ubuntu) receives internet from the eth0 interface. I have the tap0 interface set up. ...
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1answer
19 views

“ifconfig -a” does not show any interfaces

I just set up a QEMU image with Ubuntu on ARM64 as per the instructions described here. However, ifconfig -a does not seem to show me an eth0 or eth1 interface as I'd expect. Why is that? ...
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1answer
123 views

Why can't I properly locate Debian 8.1 on my BeagleBone Black?

I was using the BBB (BeagleBone Black) for a while now but with Arch Linux. Now that Debian also supports systemd I decided to give it a try. So I followed this guide and used the eMMC flasher image ...
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1answer
30 views

Unable to scan networks with Ralink 5370 on FreeBSD 11

I got a Raspberry Pi 2 Model B, and I installed on it FreeBSD 11-CURRENT using images provided at ftp://ftp.freebsd.org/pub/FreeBSD/snapshots/arm/armv6/ISO-IMAGES/11.0/ Now I have an USB Wifi dongle ...
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1answer
62 views

Qemu and AARCH64

I'm trying to setup an ARM64 machine using QEMU. I ended up fetching the kernel and img file from here and here. I reached the above links from here. When I try to run the OS as :- qemu-aarch64 -m ...
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1answer
1k views

How can I connect the BeagleBone to my wireless network using an ALFA AWUS036EW USB WiFi Adapter?

I am new to Linux so thanks for your help. This WiFi adapter isn't commonly used in the BeagleBone/Raspberry Pi world, but it is useful because it will allow me to attach a custom directional antenna ...
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1answer
56 views

How do I forbid access to physical memory in Linux?

I'm on an embedded system (Zynq from Xilinx. It uses ARMv7, Cortex-A9), and running Linux. I need to ensure that no access to a certain physical memory range is ever made, either accidentally by the ...
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78 views

Why ARM devices are not shipped with latest Linux kernel?

Wondering why ARM based devices like Raspberry Pi, Android phones, Routers etc. are not shipped with latest Linux kernel ? Is it simply due to lack of proprietary device driver support ? Like lack of ...
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92 views

Minidlna on Debian Jessie crashes with no output

I run minidlna for a good year on Debian wheezy armhf, kernel 3.6.9 for a year without problems. Now I upgraded my Server to Debian jessie, kernel 4.0.3. Minidlna comes in version 1.1.2. Whenever I ...
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1answer
67 views

kexec crashing when booting a kernel without initramfs (ARM)

First, a few details about the setup: Linux-3.14.1 ARM am335x chip U-Boot bootloader What I am trying to achieve: U-Boot loads a kernel that contains an initramfs (call this kernel 1). U-Boot ...
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54 views

Qemu Linux(kernel with debugging symbols) and ARM

I'm looking for a Linux ARM kernel, disk image and initrd that is compiled with debugging symbols. I'm looking to debug the kernel using the qemu and gdb. Could you point me to an arm linux image that ...
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1answer
2k views

Kernel booting stops right after “Uncompressing Linux…”

I'm trying to bring up an ARM-based board. I've got U-Boot working but can't seem to get the kernel to load. Most of the time it only goes as far as: Starting kernel ... Uncompressing Linux... A ...
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2answers
54 views

Using another's device resources for software execution

I have an old weak laptop (core duo at 1.7Ghz) and a quad core phone(arm cortex a7). Both are running linux. Could I use phone's resources from laptop to execute(process) stuff for laptop? Is there ...
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53 views

How to clone RFS on NAND on ARM Chip?

I have a Cm-FX6 ARM chip on which there is 8GB onboard NAND which I use as the root filesystem, running Debian 6. How do I clone the root filesystem image? Is it possible to use Clonezilla to do so? ...
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25 views

ARM Debian: how to transfer system from MicroSD to internal flash?

I'm a Windows user, and a true newbie in the linux world, so I hope my question is'nt too dumb. I have Debian running on a BeagleBoneBlack, booting from the MicroSD. After a lot of apt-gets, installs ...
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1answer
106 views

Raspberry Pi mount Samba Network Share

I tried for at least 3 hours to mount my Network Share to my Pi... I searched on many posts and tried so many things. But nothing worked... I want to mount my Share over the /etc/fstab file so I ...
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2answers
34 views

How do I make a linux image which is of my current system?

I want a really minimalistic version of Linux to run on my raspberry pi. I need nothing on it apart form the tools to make it work. I can then install the things I need such as python, nano, ssh etc. ...
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1answer
304 views

Why doesn't 'ar' work like the manpage says?

I'm trying to use 'ar' included in Debian Wheezy armel version of binutils and it doesn't seem to operate like on other systems I've encountered. Some sample output from the command-line: $ ar ...
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14 views

How to completely disable video acceleration?

The issue is with a custom linux rk3066(ARM) build. When I try to play a video file, X-server crashes with segmentation fault and I get: main vout display error: failed to resize display. I am sure ...
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Debian ARM on chroot Mumble server error

I use Debian running in a chroot next Android. $ uname -a Linux localhost 3.0.64-CM-g7e7a10d #5 SMP PREEMPT Wed Apr 8 17:34:47 BRT 2015 armv7l GNU/Linux I installed mumble server apt-get install ...
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1answer
49 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 ...
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60 views

Cross-compile any aptitude package?

I have an ARM Chromebook. There is a project called Crouton that is able to install Ubuntu to the internal harddrive pretty easily (I've done it). But most packages in the repositories are of course ...
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2answers
10k views

is my linux ARM 32 or 64 bit?

under an intel I know I can look at the outcome of uname -m to know if my OS is 32 or 64 bit, but under ARM this gives: armv7l I deduced from file /usr/bin/ls that I'm on a 32-bit OS, but how ...
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59 views

Debian ARM on SG2 no audio

I started using Debian Linux Deploy on my Android. Communicates via VNC. I have a problem when running audio file with mplayer. Got the following error: roott@localhost:/home# mplayer ...
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1answer
109 views

uvcvideo: uvc_dequeue_buffer is timeout!! on Debian armhf IceWeasel

My Setup Radxa Rock PRO ARM Single board computer Debian Wheezy server prebuilt image for Radxa Rock PRO download image + Xfce desktop From terminal root@radxa:~# uname -a Linux radxa 3.0.36+ #14 ...