Goal

Create a Gumstix experience that I can live with.

This is going to live in my living room accessible via wireless

Setup with the Out-of-Box system

First Things First

# secure my gumstix from netbots (it will have a public IP)
passwd

# make vim usable
echo ":set nocompatible" >> /etc/vimrc

# make the filesystem searchable with locate
updatedb

Wireless Networking

• Gumstix Wiki: Ad-hoc (P2P) WiFi - Outdated
• Gumstix Mailing List: Overo Fire WiFi Woes
  • lists firmware file to download
  • gives valid instruction for hotspot access

Disable Bluetooth

# (disable) bluetooth 
/etc/init.d/bluetooth stop
echo 0 > /sys/class/gpio/gpio164/value # reset
echo 0 > /sys/class/gpio/gpio15/value  # disable
update-rc.d -f bluetooth remove
update-rc.d -f blueprobe remove

Errors You may Encounter

Error:

Configuring network interfaces... ADDRCONF(NETDEV_UP): wlan0: link is not ready
udhcpc (v1.13.2) started
run-parts: /etc/udhcpc.d/00avahi-autoipd exited with code 1
Sending discover...
Sending discover...
Sending discover...
run-parts: /etc/udhcpc.d/99avahi-autoipd exited with code 1
No lease, failing

Fix:

# This helps... kinda... I think, but it may be solely the manual config below that gets it working
/etc/init.d/NetworkManager stop
update-rc.d -f NetworkManager remove
opkg remove networkmanager network-manager-applet

Error:

can't create /var/lib/dhcp/dhclient.leases: No such file or directory

Fix:

ln -s /var/lib/dhcp3 /var/lib/dhcp

Enable WiFi

Manually

ESSID='Apt Rm 04 & 05' # CHANGE THIS to suite your situation
ifdown -a
ifconfig wlan0 down
iwconfig wlan0 bit 18M fixed
iwconfig wlan0 essid "${ESSID}"
iwconfig wlan0 mode managed
iwconfig wlan0 key off
dhclient wlan0

/etc/networking/interfaces:

allow-hotplug wlan0
auto wlan0
iface wlan0 inet dhcp
        pre-up iwconfig wlan0 mode managed
        pre-up iwconfig wlan0 essid "Apt Rm 04 & 05"
        pre-up iwconfig wlan0 key off

This also works, note that there are no quotes:

allow-hotplug wlan0
auto wlan0
iface wlan0 inet dhcp
    wireless_mode managed
    wireless_essid Apt Rm 04 & 05
    wileless_key off

Better(?) Marvel Firmware

wget http://old.nabble.com/file/p29272793/Marvell_firmware_9.70.7.zip
unzip Marvell_firmware_9.70.7.zip
locate sd8686
mv 9.70.7.p0/sd8686-9.70.7.p0.bin /lib/firmware/sd8686.bin

DMZ

I have a dd-wrt router on which I added my Gumstix to have a static IP and be the DMZ.

1. Log in to dd-wrt
2. Click services
3. Click add under DHCP Server
4. Enter the gumstix hwaddr, and desired hostname and desired ipaddr
5. 'save' first (do NOT apply first)
6. okay, now 'apply'
7. Click NAT/QoS
8. Click DMZ
9. Add gumstix

Updated at 2010-09-01 blog comments powered by Disqus