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Arcom Embedded Linux Technical Manual Introduction

Introduction

Arcom Embedded Linux (AEL) is a standard Linux distribution produced by Arcom. It is

optimized to fit within the on-board Flash of Arcom’s range of Single Board Computers

(SBCs). AEL is based on the standard Linux kernel and user space tools.

Arcom provide free first line technical support for this product.

See Appendix A - Contacting Arcom

, page 65.

The minimum target footprint for AEL is a system with 16MB RAM and 8MB Flash

memory. Additional RAM and/or Flash enables greater functionality.

The AEL distribution consists of:

A standard Linux kernel, built to support Flash memory access. •

•

A number of Linux device drivers (some board-specific).

System and application libraries.

User space applications and utilities.

Some major components are:

THTTPD web server.

Bourne Again Shell (bash).

OpenSSH (secure telnet and FTP replacement).

XFree86/TinyX (on targets where graphics hardware is available).

Many other standard Linux utilities.

You may well want to add specific functionalities to the base system. You can do this by

adding libraries and/or applications compiled on a host Linux system. We supply all

source code for the kernel, libraries and applications in the AEL distribution. This means

you can completely rebuild the environment from scratch, if required.

AEL is implemented in a way that enables it to support installation on space-constrained

devices, such as the on-board Flash.

Arcom Embedded Linux is not intended to be used to build applications. A host Linux

system is required to design and build applications before downloading them to the

target system using FTP or SCP.

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