Dropbear

Dropbear is a Linksys WRT54GL wifi router running OpenWrt.

Overview

Dropbear is a Linksys WRT54GL wifi router running OpenWrt. The hardware is pretty slow (200 MHz processor) and the on-board storage is only about 20 megabytes, so it's pretty limited in terms of baked-in capabilities. There is also no USB port or expansion slot.

Some of these shortcomings can be overcome through hardware hacking - soldering an external USB port to the board inside, for example, to use external USB storage - but I did not need these modifications for my purposes.

Plus, Widy is the same cost, easier, battery-powered, pocket-sized, and takes USB. What's not to like about Widy?

Upgrading

Listing Installed Packages

Create a temporary script:

vi /tmp/listuserpackages.sh

with the following contents:

#!/bin/ash
echo >&2 User-installed packages are the following:
sed -ne '/^Package:[[:blank:]]*/ {
	s///
	h
}
/user installed/ {
	g
	p
}' /usr/lib/opkg/status

This will print the name of all packages installed:

User-installed packages are the following:
luci-lib-sys
kmod-usb-storage
libuci-lua
opkg
kmod-usb-core
luci-mod-admin-core
busybox
libiwinfo-lua
kmod-wlcompat
libiwinfo
kmod-diag
luci-lib-lmo
luci-theme-openwrt
base-files
kmod-switch
kmod-usb-ohci
dnsmasq
luci-sgi-cgi
iptables-mod-conntrack
firewall
luci-app-firewall
luci-lib-ipkg
libuci
liblua
libip4tc
uci
lua
dropbear
mtd
kmod-brcm-wl
luci-theme-base
nvram
luci-proto-ppp
ppp
luci-mod-admin-full
luci-lib-web
iptables
uhttpd
libxtables
luci-lib-nixio
luci
wlc
iptables-mod-nat
luci-proto-core
luci-i18n-english
nas
wireless-tools
luci-lib-core
ppp-mod-pppoe

Upgrading Via Lucy Web Interface

1. Select Administration in the top right corner
2. Choose the System > Flash Firmware tab
3. Click Browse and navigate to the firmware (it must be a .trx file) you wish to flash to
4. Click 'Upload image'
5. Follow the instructions