In my last visit to 24C3, I also got one of 99 EUR NSLU2 Slug devices.

unslug Linksys firmware

sudo apt-get install upslug2

existing firmware version

sudo upslug2 -t 00:1A:70:95:AD:6D -v
NSLU2     00:1a:70:95:ad:6d Product ID: 1 Protocol ID: 0 Firmware Version: R23VA5 [0x23A5]

flash

Flasing has great user interface:

sudo upslug2 -t 00:1A:70:95:AD:6D -i slugosbe-4.8-beta-nslu2.bin    
Upgrading LKG95AD6D 00:1a:70:95:ad:6d
    . original flash contents  * packet timed out
    ! being erased             - erased
    u being upgraded           U upgraded
    v being verified           V verified 

  Display:
    <status> <address completed>+<bytes transmitted but not completed>
  Status:
    * timeout occured          + sequence error detected

  4605bf+000000 ...UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUu----------------------------

First flashing didn't end up quite well, since I got blinking green/amber led (even after power cycle). After that, I plugged 4Gb USB stick into port 2, re-flashed unit again, and it booted!

first login

Default password after flasing is: opeNSLUg

networking

Useful one-liner because I want to allocate default NSLU IP 192.168.1.77 to eth0 on which it is connected while rest of my network if same class 192.168.1.0/24 but on wifi.

ifconfig eth0 192.168.1.76 pointopoint 192.168.1.77 netmask 255.255.255.254 up

links