The ARM architecture is a 32 and 64-bit instruction set architecture (ISA), based on the reduced instruction-set computing (RISC) design. The 32-bit ARM architecture is the most widely used 32-bit ISA. The ARM architecture is often licensed to other third-party companies, to allow the development ...

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766 views

Mount TMPFS instead of ro /dev

I am working on a ARM-Based embedded system with a custom Debian Linux based on kernel 2.6.31. In the final system, the Root file system is stored as squashfs on flash. Now, the folder /dev is created ...
2
votes
1answer
885 views

Udev rules on Ubuntu/OMAP (Beaglebone)

I have an IROX Pro-X weather station and am running wview weather software on Ubuntu 12.04. I have been running it on my old laptop for a few months with no problems but am trying to run it on a ...
2
votes
1answer
1k views

Arch Arm: /folder does not support NFS export

I have a backup drive that is formatted hfs+ (for my mac laptops) That I want to have available on my home network so I don't have to plug in directly. I have a pogoplug running arch linux (install is ...
2
votes
1answer
411 views

how to start a process from linux(debian) OS on detection of a usb device?

I'm using a FTDI 2232H chip in synchronous FIFO mode to communicate over USB to an altera Cyclone II FPGA. I've developed a program that will communicate with the device, using libftdi and libusb, ...
1
vote
1answer
79 views

Issues building Node.js v4 for ARM with software floating-point emulation

My team is developing a product on an embedded Linux OS running Node.js for the web back-end for device configuration. We're porting our code to a system with an arm processor that does not have a ...
1
vote
1answer
36 views

Output of dstat is getting buffered (30 seconds)

We are running dstat on a one second update frequency using this option: --output <filename> The data is correctly written but only every thirty seconds. Here is the full dstat command ...
1
vote
1answer
345 views

Mount a Linux Disk Image with two file systems?

I'm working with the new Kali Linux ARM images, and after hours of not figuring anything out in terms of mounting, I got it to mount via my Mac and fuse. Here's the curious thing, it's a single image ...
0
votes
1answer
63 views

Which address space is used in system calls? physical? or virtual?

Explanation There’s two kind of address space virtual and physical. On the physical model (typically used by the kernel) the memory is bounded and each address correspond to physical ones. The ...
0
votes
1answer
135 views

Installing Eclipse 4.5 on ARM Ubuntu

I recently got an excellent deal on a Chromebook (Hisense C11), and have used crouton to install Trusty Tahr (14.04): (trusty)craig@localhost:~$ uname -a Linux localhost 3.14.0 #1 SMP PREEMPT Wed Apr ...
4
votes
0answers
93 views

What happens in a ARM based system before the OS is loaded?

What happens in a ARM based system before the OS is loaded and do they have BIOS, drivers, MBR or a different approach instead of these?
2
votes
0answers
160 views

Debian ARM and Brother MFCJ5320DW with CUPS

I am trying to use a Brother MFCJ5320DW printer with Debian ARM, which is similar to: Debian ARM and Brother DCP195C with CUPS http://unix.stackexchange.com/questions/191813/installing-brother-dcp-...
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vote
0answers
22 views

Is it possible to catch the instruction that wrote an invalid value into the pc register?

After an instruction, for example, pop {pc} writes an invalid value, say 0, into the pc register, CPU will try to fetch the instruction located at 0, which will usually trigger a segment fault. ...
1
vote
0answers
47 views

What is the minimum amount of RAM required to run Linux Kernel in ARM cortex-a5?

I want to know what is the minimum amount of RAM required to run Linux Kernel (4.6) in ARM cortex-a5. Now I am using 32MB PSRAM but whenever I am loading vmlinux (elf format) through debugger to ...
1
vote
0answers
178 views

Apache httpd-2.2.10 crosscompile to ARM

I'm trying to crosscompile Apache 2.2.10 to ARM architecture. I've exported CC, ARM variables. Also I've sucessfully crosscompiled openssl, apr, apr-util and pcre packets for target ARM architecture. ...
1
vote
0answers
113 views

Can't use sudo when autologin in Arch Linux

I have a Pandaboard running Arch Linux, the default non root user is alarm. I'm trying to automatically login at startup with the alarm user. I followed the instructions here and created the file /etc/...
1
vote
0answers
67 views

Proper GCC setting for my CPU

I'm trying to compile a simple C program for my Colibri T20 running Angstrom Linux. The output of uname -a is here: Linux colibri-t20 3.1.10 #1 SMP PREEMPT Fri Mar 20 02:38:59 CET 2015 armv7l GNU/...
1
vote
0answers
403 views

GCC option : Unrecognized command line

I am trying to build my project with gcc compiler but I get this error: gcc: error: unrecognized command line option '-mthumb' Isn't -mthumb a default option for gcc? Why he couldn't recognize it?
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vote
0answers
234 views

Xen on ARM Cortex A9

I see that there is a version of the Xen hypervisor for ARM CPUs. However, most ARM CPUs appear not to have virtualisation extensions (and are not otherwise efficiently virtualisable). Hence I looked ...
1
vote
0answers
225 views

Is there a way to use a “hardware fingerprint” to automatically mount an eCryptFS directory on boot?

I would like to have an eCryptfs directory "securely" automatically mounted on boot without logging in. My scenario is this: I have an embedded ArchLinux server (ARM-based) that uses a removable ...
1
vote
0answers
215 views

USB Mouse and Keyboard not working in Linux 4 Tegra

I am a new person in Tegra Linux development. I have Tamontem NG Evaluation board with Tegra 3 Chip. I installed L4T sample file system from NVIDIA tegra Resources (https://developer.nvidia.com/linux-...
1
vote
0answers
277 views

ARM Processor - thermal monitoring?

Has anyone had success in getting temperature information from an ARM processor? I've tried using lmsensor but when I run sensors-detect the system locks up and has to be cold booted. Are there ...
1
vote
0answers
117 views

Debian Linux running on TS-7880 Arm Board; Cannot run shell scripts with non-root user

Here is the snippet of the script that I am trying to run some shell scripts on a TS7800 Arm Board through a non-root user: echo > /dev/ttts4 echo " `hostname`" > /dev/ttts4; echo ...
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vote
0answers
1k views

Running FreedomBox in Qemu

I wanna run the latest FreedomBox image on my Ubuntu laptop. The FreedomBox image is for DreamPlug, a 1.2 GHz Marvell Kirkwood 88F6281 SoC (ARM9E), and my Ubuntu is v12.10 (3.5.0-17-generic i686). ...
1
vote
0answers
1k views

problem trying to configure xorg in debian arm system

I'm trying to get the display working with xorg an a LOGIC PD TI AM35X SOM-M2 system running debian through a NFS boot setup. The LCD touchscreen display that I have hooked up comes up as /deb/fb0. ...
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vote
0answers
383 views

ARM Linux kernel debugging on AT91SAM9261

I have ported Linux to AT91SAM9261 board, I have compiled my own Bootstrap, Uboot, Kernel and filesystem. Now I want to debug my Linux kernel 2.6.30 using KGDB and GDB. I have host with Ubuntu ...
0
votes
0answers
5 views

Change core voltage from ARM processor running Android

There is a way to change the core voltage from an ARM processor running an Android system? I want to run some benchmarks incrementally increasing core voltage, for example, from 0.7V to 1.05V in ...
0
votes
0answers
12 views

Nginx on armv7l installation

I am trying to cross-compile Nginx for Armv7l. See the followings steps already done (following this tutorial mainly Nginx for arm) Step 1 ./configure --without-pcre --without-http_rewrite_module ...
0
votes
0answers
23 views

OOM kills and swappiness for IoT devices with eMMC and SD storage?

I experience an occasional Out-of-Memory (OOM) kill from the compiler on BeagleBoards, CubieTrucks, etc. They are IoT devices, powered by ARM, generally have 512 MB to 2 GB of RAM, and use 4 or 8 GB ...
0
votes
0answers
21 views

How to identify GPU memory on ARM Linux

I am developing an appication reserving lots of GPU memory on ARM devices. For some devices (eg. Nvidia Tegra based) some of the memory is reserved in the 'cached' area as it seems. Particulary, the ...
0
votes
0answers
20 views

How to access EL1 resources from EL3 on armv8?

The working secerio is that I'm testing OP-TEE on a Hikey board, and they use arm-trusted-firmware to be the monitor running in EL3. I'm trying to access some resources in EL1 by specifying an ...
0
votes
0answers
21 views

NanoPi2 external wifi dongle doesn't go UP

I've got a NanoPi2 (it has an internal wireless card embedded) and I'm trying to configure another wireless device (usb) because I need two wlans working both at the same time. I know that the ...
0
votes
0answers
17 views

Does HiKey board have PL310 cache controller or cache lockdown functionality?

I know that HiKey board has Cortex A53 core. Based on ARM v8 specification, it may comes with a PL310 cache controller or some co-processor that supports the similar cache lockdown functionality on ...
0
votes
0answers
1k views

kali sana on android gives the following error: the selected extractor cannot be found: ar

hey i have a problem with installing kali sana using linux deploy on my mi4i, when i start the download&installation it says: "E: The selected extractor cannot be found: ar" trying it with debian ...
0
votes
0answers
39 views

Can KVM run on Freescale IMX6 SABRE board?

I'm wondering if KVM can run on Freescale IMX6 SABRE board, which has ARM Cortex A9 processor? I searched around but couldn't find any information about this. Thank you very much in advance!
0
votes
0answers
55 views

jlink This device cannot start. (Code 10) in win7 after update driver

I have one J-link ARM programmer, SO for first time i start it via KEIL software, and KEIL updated it's Driver, So after driver Updated , it's made crazy!!! and the led of its got down , so when i ...
0
votes
0answers
19 views

dpkg can't configure python-pkg-resources

Cubieboard2, Debian Wheezy $ uname -a Linux cubieboard2 3.4.79 #2 SMP PREEMPT Sat Feb 15 10:02:52 CST 2014 armv7l GNU/Linux I'm trying to update the packages, but the process fails at python-pkg-...
0
votes
0answers
62 views

How to Download C code to De1-SoC and get it running

I have a DE1-SoC board and would like to play with it. My wish is to write a simple program in C, compile, then upload the binary to the board. However, I am not sure where to start from. Do I ...
0
votes
0answers
106 views

Wanting to run x86 binaries in Crouton Linux on dev-enabled Asus Chromebook Flip (ARM)

Yes, I know this may be very esoteric. :) I have a few simple x86 programs which run fine using Wine in any stock x86 desktop Linux. None of them have any 3D graphics or unusual hardware needs. I'...
0
votes
0answers
90 views

streaming camera video to server using motion

I have a DLINK DCS 930L IP camera. I am using motion software right now to stream the video and also record video from the camera. But, now it just streams video to the local network. in the ...
0
votes
0answers
85 views

Is ARM PL310 only in Cortex A9 processor?

I know that ARM Cortex A9 processor can be equipped with PL310 cache controller. However, I'm not sure if other ARM processors may support PL310 cache controller? I searched Cortex A7, A53, and A57, ...
0
votes
0answers
21 views

Do the ARM CPUs have legacy support/compatibility?

Traditionally the x86 CPUs included legacy support for older CPUs. This is: modern CPUs always could (can) execute programs designed for older CPUs. I have seen there are multiple ARM CPUs: ARMhf, ...
0
votes
0answers
98 views

Getting “No Such File or Directory” but the program exists in Debian armel

I’m running Debian armel in Qemu and trying to run an ARM program but am running into issues: user@debian-armel:~$ ls -lbat total 32 drwxr-xr-x 2 user user 4096 Sep 14 23:54 . -rw------- 1 user user ...
0
votes
0answers
84 views

How to test ARM Ubuntu under Qemu the easiest way?

I would like to play with ARM version of Ubuntu (with graphical support) under Qemu, but I have problems finding any tutorial on how to get it done most easily (I would prefer to just download some ...
0
votes
0answers
455 views

HDMI to VGA converter, no image from Banana Pi

I'm trying to use a Banana Pi with Bananian OS (Debian 7 based) on a monitor that does not have a HDMI input but a VGA. So I bought a HDMI to VGA adapter. I followed the instructions written here to ...
0
votes
0answers
127 views

Arch Linux mpd error-

MPD installed on Arch Linux ARM resulting in this error: mpd: /usr/lib/liblzma.so.5: no version information available (required by /usr/lib/libavcodec.so.56 I already cleared some of the errors ...
0
votes
0answers
446 views

Compile brscan3 on Raspberry Pi (brother scanner)

I am trying to compile brscan3 (Brother software for scanner) from source file on my Raspberry Pi (arm architecture). I tried ./configure but I obtain this error: config.status: creating Makefile ...
0
votes
0answers
134 views

Difference in performance between ARM and “traditional” CPU on Raspberry PI example

I'm not sure if my question fits here, but I will give it a try since it does not seem to fit any other StackExcnhange. New day ARM processors are slower (if you look at MHz - 500MHz in RPi case). ...
0
votes
0answers
260 views

Installing preinstalled Ubuntu 11 armel onto PandaBoard

I'm trying to install a preinstalled Ubuntu 11 armel into PandaBoard. I downloaded the raw image from: http://ftp.fi.debian.org/ubuntu-dvd/11.10/release/ubuntu-11.10-preinstalled-desktop-armel+omap4....
0
votes
0answers
324 views

Create access point (uap0) on debian 7(arm) - not found?

I'm working with a fanless PC that has an ARM chipset, 2 eth plugs and a wifi card (among other things). If I install debian 6 on it all three network interfaces are available at boot time. Today I ...
0
votes
0answers
87 views

Is a sitara ARM powerful enough to decode and play mpeg4

I have the question: "Is a sitara ARM running embedded linux is powerful enough to decode and play mpeg4 format files (using vlc or other software)?" posed to me by the boss... but I am not really ...