# Flashing WVC54GCA with a custom firmware

# file /sbin/init
/sbin/init: ELF 32-bit LSB  shared object, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=c394677bccc720a3bb4f4c42a48e008ff33e39b1, stripped
# cat /etc/lsb-release | grep DESC
DISTRIB_DESCRIPTION="Ubuntu 14.04.1 LTS"
# mkdir wvc54gca
# cd wvc54gca
# wget http://downloads.linksysbycisco.com/downloads/wvc54gca_v1.00R24.tgz
# tar xvzf wvc54gca_v1.00R24.tgz
# md5sum wvc54gca_v1.00R24.tgz
26475f583a55acf515d90d9c0340899d  wvc54gca_v1.00R24.tgz
# apt-get install autotools-dev libncurses5-dev
# rm /bin/sh
# ln -s /bin/bash /bin/sh
# cd source
# cat README
# cat src/rootfs/etc/init.d/rcS
# echo -e "\n# ---- Start Telnet Server (debug) ---- #\n/usr/sbin/telnetd &" >> src/rootfs/etc/init.d/rcS
# cat src/rootfs/etc/passwd 
root:9szj4G6pgOGeA:0:0:root:/root:/bin/sh
# openssl passwd -crypt toor
TEcqq4feRqPLA
# sed -i 's/9szj4G6pgOGeA/TEcqq4feRqPLA/' src/rootfs/etc/passwd
# ./makeall
# file FW/WVC54GCA.bin
FW/WVC54GCA.bin: data