root@OpenWrt:/# ipkg list_installed
base-files-atheros-2.6 - 8-7084 - 
bridge - 1.0.6-1 - 
busybox - 1.4.1-1 - 
dnsmasq - 2.38-1 - 
dropbear - 0.49-1 - 
hotplug2 - 0.9-1 - 
iptables - 1.3.5-1 - 
kernel - 2.6.19.2-atheros-1 - 
kmod-ipt-nathelper - 2.6.19.2-atheros-1 - 
kmod-madwifi - 2.6.19.2+0.9.2.1-atheros-1 - 
kmod-ppp - 2.6.19.2-atheros-1 - 
kmod-pppoe - 2.6.19.2-atheros-1 - 
libgcc - 4.1.2-8 - 
libgd - 2.0.33-2 - 
libjpeg - 6b-1 - 
libncurses - 5.2-8 - 
libopenssl - 0.9.8e-1 - 
libpcre - 7.0-1 - 
libpng - 1.2.8-1 - 
libpthread - 0.9.28-8 - 
libsqlite3 - 3.3.3-1 - 
libxml2 - 2.6.20-1 - 
lighttpd - 1.4.15-1 - 
lighttpd-mod-cgi - 1.4.15-1 - 
mtd - 5 - 
nano - 1.3.8-1 - 
php5 - 5.1.6-1 - 
php5-cgi - 5.1.6-1 - 
php5-mod-gd - 5.1.6-1 - 
ppp - 2.4.3-7 - 
ppp-mod-pppoe - 2.4.3-7 - 
uclibc - 0.9.28-8 - 
udevtrigger - 106-1 - 
wireless-tools - 28-1 - 
zlib - 1.2.3-3 - 
Done.
root@OpenWrt:/# df -h
Filesystem                Size      Used Available Use% Mounted on
tmpfs                   512.0k         0    512.0k   0% /dev
/dev/mtdblock2            4.4M    872.0k      3.6M  19% /jffs
/jffs                     2.6M      2.6M         0 100% /
root@OpenWrt:/#