Many CSE students have Linux machines which they would like to be able to use to work away from the CSE labs. The following is a guide as to how to set up the necessary drivers/software. These instructions will be debian specific in some spots (e.g. setting up the tftp server) but they should at least give you an idea of how to set up other distributions.This page might be of use, however out of date.
The components you will need to install are:
Crosstool is a system which will automagically build cross-compilers. Prior to crosstool, building cross-compilers was a fairly horrible process.
Follow these steps:
You need device drivers for the RTL8150 based USB to Ethernet dongle, and
the FT232RL USB-Serial converter. Fortunately, these drivers are in the
linux kernel and are compiled by most modern distributions, so you should
be able to plug them in and see messages from the drivers via
The modules required are:
If you don't have hotplug set up correctly, you may need to use use modprobe to load the modules. e.g.
modprobe rtl8150. You probably want to get this all
working automatically, as it is in the CSE labs.
At this stage, we assume a working serial converter and ethernet port. The serial converter is assumed to use device
/dev/ttyUSB0 and the ethernet port is assumed to use
eth1. Substitute below if your setup varies (e.g. if you are using a real Ethernet port or network).
The AOS board expects to find a host at
192.168.168.1. You can change this temporarily in the bootloader, but its easiest to set up your host to be at
this address. This is not a problem if you are using an independent network provided by the USB to Ethernet dongle.
If your USB to Ethernet dongle is using
eth1 (note that it will simply get the next unused ethX interface - i.e. if your wired Ethernet is eth0,
wireless is eth1, then the USB-Ethernet converter will be eth2. This should show up in the output of
ifconfig eth1 192.168.168.1 up
The bootloader will download your software image from a tftp server running on your host. So you need to set one up:
apt-get install tftpd
Edit your /etc/inetd.conf. Change the following line to reflect the location of the directory which you want to use as your tftp root. (In this case it is /tftpboot).
tftp dgram udp wait nobody /usr/sbin/tcpd /usr/sbin/in.tftpd /tftpboot
You may need to restart inetd at this point using
You will also need to adjust your handy Makefile if you want it to automatically copy the bootimg.bin file to the tftpboot directory. The variable to look for is:
Uncomment the following line in /etc/inetd.conf :
#time dgram udp wait root internal
Install the NFS server:
Then set up the exports by editingdaves@gedanken:~$ apt-get install nfs-kernel-server nfs-common portmap
/etc/exportsand adding the following lines (adjusted for the location of your tftp root directory and your username):
It is necessary to be able to control the NSLU2 using a utility program. It controls the reset line, allowing the NSLU2 to boot once a serial console has been opened.
Download the source code. Uncompress it,
make, and copy the resulting executable to a directory in your $PATH (or add the nslu2-util directory to your $PATH).
Install the following packages:
apt-get install minicom netcat ethereal