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toh:seagate:dockstar:goflex

Seagate Dockstar GoFlex

Highlights

CPU Ram Flash Network USB Serial JTag
Marvell Kirkwood@1200MHz 128 MiB 256 or 512 MiB 1 gigE 4x 2.0 Yes Yes

Flash Layout

Original FlashLayout
mtd# mtd0 mtd1 mtd2 mtd3
start 0x000000 0x100000 0x500000 0x2500000
size 0x100000 0x400000 0x2000000 0xdb00000
in MiB 1 4 32 219
name u-boot uImage root data
file system none ??? JFFS2 ??

Specific Configuration

Interfaces

The default network configuration is:

Interface Name Description Default configuration
eth0 Ethernet port DHCP

Failsafe

The DockStar cannot be put into failsafe mode by pressing the button.

It can however be put in failsafe mode using serial console and pressing 'f' and <enter> when prompted during boot-up

Buttons

The DockStar's only button is not configurable and inevitably performs a hard reset when pressed, the button open the bridge between the positive pole and the power cord.

Crypto Hardware Acceleration

Hardware

Info

Architecture armv5te (big endian, runs also with little endian)
Vendor Marvell
Bootloader U-Boot
System-On-Chip Marvell MV88F6281 A0 (DDR2) with ARM926EJ-S CPU (Marvell Feroceon)
CPU Speed 1200 MHz
Flash size 256 MiB
RAM 128 MiB / 1x Nanya NT5TU64M16DG-AC
Wireless n/a
Ethernet 1x GigE port / Marvell “Alaska” 88E1116R
USB 1x USB 2.0 port
Serial Yes

Photos

goflex_inside.jpg

Opening the case

There are no screws - the bottom cover is held by ten plastic snap on clips, three on the sides and two on the edges. To open the case, gently pry all around with a thin screwdriver until it is open.

The serial pins are accessible without further disassembly.

Serial

port.serial general information about the serial port, serial port cable, etc.

How to connect to the Serial Port of this specific device:
Insert photo of PCB with markings for serial port

FIXME Replace EXAMPLE by real values.

Serial connection parameters
for Seagate Dockstar GoFlex
EXAMPLE 115200, 8N1

SSH

Connect device to Ethernet port. To prevent automatic updates by cloud engines (which may disable ssh access), use a separate switch or disconnect your router from the internet. If the ssh access was disabled by the automatic cloud engine update service, you need to login there and re-activate ssh.

Find IP address, BE and EF are the last two bytes of the MAC of your device (printed on the bottom of the Dockstar)

root@host ~ # ifconfig eth0 169.254.1.0 
root@host ~ # nmap -e eth0 -sP $(printf "169.254.%d.%d" 0xbe 0xef)

Connect to IP address via ssh (root / stxadmin) to see if it works.

Finding the IP address did not work on my device, but i managed to get it this way: root@host ~ tcpdump -s 1500 -n -l -w - -i $MYETHERNET dst 169.254.255.255 | strings Hello there. I am at 169.254.7.60. Time is 1356445289 and I am hungry.Hostname:<>.CPU:<armv5tejl>.Distribution:<hipserv2_seagateplug>.Status:<0> 4Hello there. I am at 169.254.7.60. Time is 1356445289 and I am hungry.Hostname:<>.CPU:<armv5tejl>.Distribution:<hipserv2_seagateplug>.Status:<0>.Mac:<00:10:75:2D:81:BE>

Backup

If you want to restore the original firmware at a later point use this guide to make a backup. You need to login to the original firmware via ssh first. Another method beside using “dd” is nanddump. To be on the safe side, you should take a 2nd backup with the nanddump method. Assuming you have a USB Stick or other USB drive mapped via sda - you can try this:

cd /tmp
mkdir backup
mount /dev/sda1 /tmp/backup
wget http://plugapps.com/os/pogoplug/uboot/nanddump
chmod +x nanddump
./nanddump -nf backup/mtd0 /dev/mtd0
./nanddump -nf backup/mtd1 /dev/mtd1
./nanddump -nf backup/mtd2 /dev/mtd2
umount /dev/sda1

Tags

toh/seagate/dockstar/goflex.txt · Last modified: 2018/06/04 19:42 by tmomas