ARM is a 32-bit reduced instruction set computer (RISC) instruction set architecture (ISA) developed by ARM Holdings. It was named the Advanced RISC Machine and, before that, the Acorn RISC Machine. The ARM architecture is the most widely used 32-bit instruction set architecture in numbers produced.

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Update kernel on arm device [migrated]

How can I update the kernel of my ARM device? The device I have been using is A20-Olinuxino LIME board, with Debian GNU/Linux 7.6 (wheezy) image booted from NAND. The uname -a command displayes 3.4....
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Memdisk for PXE on armhf

I'm setting up a network boot server for both nix and windows distribution on LAN using bananapi board. Did it before with regular servers but what stops me now is memdisk as kernel for windows boot. ...
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How to install Ubuntu ARM image with virt-install

How do you use virt-install to create an ARM virtual machine for running an Ubuntu ARM Raspberry Pi image? The docs are unclear to me, but from reading the manpage and looking at several examples, I ...
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86 views

Output IPaddress of VM using ARM template

Have a ARM template (https://github.com/jmspring/arm-template-neo4j-docker/blob/master/azuredeploy.json) which will launch a instance and assign a public IP. here i need to print the IP address as ...
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182 views

mq_send : bad file descriptor

I have tried executing sample message queue programs on arm (linux) platform and mq_send() throws error number 9 (Bad file descriptor). 1) mq is enabled in kernel i.e CONFIG_POSIX_MQUEUE and ...
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136 views

Using RTC to synchronize ntpd when offline

I need a stable configuration, presumably using ntpd, to keep system clock as precise as possible. Background: I have several embedded devices (arm9) running linux (currently: 3.16.1 / debian 7.2) ...
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201 views

ssh hangs in Ubuntu MaaS heterogeneous cluster

I have the following issue when using ssh on my local network. I have setup a small cluster of Xeon machines using MAAS. I have installed Ubuntu Server 12.04 on all machines and configured local ...
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637 views

CPU Affinity on ARM processors

I am using some RaspberryPI boards for a data acquisition system. They are nice boards, with plenty of community support around them, but they are really slow. I am thinking of gradually replacing ...
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561 views

Cannot start OpenVPN on sheevaplug. Any suggestions?

I installed OpenVPN on my arm-based sheevaplug (OS is Debian 7 Wheezy, kernel 3.8.8.) but as soon as i try to start the service i receive the following error: [....] Starting virtual private network ...
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555 views

Packets do not reach FILTER chain of iptables

I have a problem I cant figure out, I am trying to access webserver on [RPI], but packets never reach iptables FILTER chain I will try to explain it a bit: GW1 has public address and doing DNAT from ...
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3k views

Any way to recover from Pacman error message — error: failed to commit transaction (conflicting files) [closed]

When trying to update an Arch install I get this error message stating that there is a file conflict. After having a full system update fail, I started to go package by package as shown below. Some ...
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232 views

I've installed “dash” but still see “bash” when I login via SSH [closed]

I've configured my Raspberry Pi to use "dash" for default shell, as instructed here. I have Dropbear for SSH. When I login via SSH, I still see the "bash" console, and not "dash". How to change ...
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250 views

ARM Debian (squeeze) USB driver with mismatch 3.3.3 kernel but /lib/modules/2.6.36

Hei guys, my sheevaplug embedded server works fine, but when I wanted to use USB, the device gets not attached to /dev/tty/USB0 lsusb shows correctly: Bus 001 Device 002: ID 067b:2303 Prolific ...
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What are the best possible ways to benchmark RAM (no-ECC) under linux / arm?

I want to test integrity and global performances of no-ECC memory chips on a custom board Are there some tools that run under linux so I can monitor system and global temperature in the same time ? ...