Check first: http://ahsoftware.de/dockstar/ http://wiki.openwrt.org/toh/seagate/dockstar Also interesting: http://jeff.doozan.com/debian/ http://www.mikrocontroller.net/articles/Dockstar Note: There's no need to replace the u-boot on the system (at least on my one)... For Siemens C-55 cable, from reichelt.de Blue: RX Green: TX White: GND Red: Not Connected Rate: 115200, 8N1 +3.3 9 7 5 3 1 10 8 6 4 2 RX TX GND