How to solve Serial port problem : Removing stale lock: /var/lock/LCK..ttyUSB0

Today, When I connected my ARM9 development board with my laptop through picocom, I faced a peculiar error.

How to setup NFS(Network File system) server in development workstation

1) Create a directory,

$ mkdir /home/user/nfsdir

2) Install required package

$ sudo apt-get install nfs-kernel-server

How to get configuration file (.config) from Kernel image

So, simple

After googling, I found this solution, it is very much effective in Embedded domain.

Just boot respective kernel image, and type the following in console (terminal).

How to avoid /bin/sh: can’t access tty; job control turned off at embedded system

Friends, when I started working with ARM boards I faced much more problems on interfacing board with my development pc, and this is also one of such. Eventhough I managed to start…

How to build Tiny embedded system using busybox for ARM target

Today atlast I completed my task of building tiny embedded system using busybox for ARM. This is for your info,

Target — LPC 3250 (ARM926EJS processor),

Loadable Kernel Modules

Module is the piece of binary which can be inserted and removed, to and from Kernel dynamically. I mean into the current running kernel. I may demonstrate simple examples here,

Hello World Module

Configuration file for Busybox — 1.20

I may share this file for, embedded system purpose.

#
# Busybox version: 1.20.1
# Sat May 4 11:59:59 2013
#
CONFIG_HAVE_DOT_CONFIG=y

How Patch works?

Patch is a file that describes difference between two files (old file with new file). A special program called diff will compare both files line by line and prints the differences to stdout in a special format. Patchfile can read the output of diff function and it may apply those changes to old…