Snake Os v1 20091027 User Manual

SNAKE OS for Str8132-Based NAS

USER MANUAL

Snake OS version 1.0.0 (20091027)

Authors:

Douglas GazineuJarko Papalitsas

José MacielMiguel Moreto

Date: March 16th, 2010

Table of contents

Table of contents ........................................................................... 21. Updating Firmware .................................................................... 4

1.1. Compatible devices .................................................................. 41.2. Starting NAS ........................................................................... 41.3. Updating firmware ................................................................... 5

1.3.1. Files needed ...................................................................... 51.3.2. Caution ............................................................................. 51.3.3. Selecting file ...................................................................... 5

1.4. Starting new NAS firmware ....................................................... 52. Web Interface ............................................................................ 6

2.1. Connecting and login ................................................................ 62.2. My NAS .................................................................................. 62.3. Device.................................................................................... 6

2.3.1. Hostname.......................................................................... 62.3.2. Admin............................................................................... 72.3.3. LAN Settings...................................................................... 7

2.3.3.1. IP Address ................................................................... 72.3.3.2. MAC address ................................................................ 7

2.3.4. Web Interface .................................................................... 72.3.5. Time................................................................................. 7

2.4. Disks...................................................................................... 82.4.1. Diskname .......................................................................... 82.4.2. Format.............................................................................. 82.4.3. Partition ............................................................................ 8

2.5. Services ................................................................................. 92.5.1 DDNS ................................................................................ 92.5.2. FTP................................................................................... 92.5.3. Samba ............................................................................ 102.5.4. SSH/SFTP........................................................................ 112.5.5. Swapfile .......................................................................... 112.5.6. Transmission ................................................................... 11

2.6 Sharing ................................................................................. 122.6.1. Printers ........................................................................... 13

2.6.1.1 Installing the printer in your operational system............... 13Windows XP machine ............................................................ 13Windows 7 RC ..................................................................... 14

2.6.2. Users .............................................................................. 142.6.3. Shares ............................................................................ 15

2.7. System................................................................................. 152.7.1. Status .......................................................................... 162.7.2. Log .............................................................................. 162.7.3. Monitor ........................................................................ 162.7.4. Config .......................................................................... 162.7.5. Firmware ...................................................................... 16

2.8. Transmission ......................................................................... 163. SSH .......................................................................................... 17

3.1. SSH clients ........................................................................... 173.2. Accessing NAS....................................................................... 17

Appendix A - FAQ ......................................................................... 17Appendix B - Troubleshooting ...................................................... 18Appendix C - How To set up a serial interface .............................. 18

C.1. Hardware setup ..................................................................... 19

C.2. Software setup using Windows XP ............................................ 21

1. Updating Firmware

1.1. Compatible devices

The current version of SNAKE OS was tested to be compatible with the following devices:- WLXKJ-652 (Manufacturer: FUKBOON)- NS-K330 (Manufacturer: Kintec)

1.2. Starting NAS

After connecting your NAS it will start and the power LED will turn on. Open a webbrowser and enter "http://NAS" into the address field in the browser, where "NAS" is thename of your NAS.

Alternatively will may enter ip address. If there is a DHCP SERVER existed in the LAN,the LAN Server will get the IP address automatically from the DHCP SERVER when start-up. If there is no DHCP SERVER existed in the LAN, the LAN Server will start up with thedefault IP address 192.168.0.240 and provide the DHCP service with fixed IP addressesrange from 192.168.0.1 to 192.168.0.239.

A login screen will be shown, then you have to enter default user and password.user: adminpassword: admin

Web interface will be shown like follows:

1.3. Updating firmware

Select 'Tools' menu and click 'Upgrade firmware'. It will let you do NAS FirmwareUpdate.

1.3.1. Files needed

Now you need to have 'SNAKE OS' files saved in your PC. Two files are available inupdating package:a) snakeos-release-date-type.bin, image file.b) snakeos-release-date-type.md5, only to checksum purpose.Where:RELEASE: Beta, or Release name and version (beta3 / GreenV1 / NajaV2... etc)DATE: Date of compilationTYPE: from-original or from-snake. "FROM-ORIGINAL" is the right one to be installedfrom original firmware. "FROM-SNAKE" can be installed only from Snake OS starting inBeta2.

1.3.2. Caution

Before upgrading system firmware, back up all disk data on the LAN Server to avoid anypotential data loss during system update. Make sure you have an USB device connectedto your NAS.

If you are installing Snake OS for the first time take care when choosing the rightfile. In this case you must use "FROM-ORIGINAL" file, otherwise you will brick yourdevice.

System update may take some seconds to several minutes to complete depending onthe network connection status. Please wait patiently and don't power off the device.

1.3.3. Selecting file

Click the 'Browse…' button to select the correct firmware image for system update. Nowselect the desired bin file and start updating and click 'Update' to update the firmwareautomatically.

1.4. Starting new NAS firmware

After updating your NAS firmware you are able to connect to SNAKE OS.

If you have changed your IP address before updating you need to remember it waschanged to default, the same as described in section 1.1. You may need change yournetwork settings to change your IP address to the same network that NAS.

Once you have done it, you can start NAS web interface as described in the followingsections.

2. Web Interface

2.1. Connecting and login

When connecting to the device first time, device has been set to use static IP of192.168.0.240. To get started, open up your favorite web browser (Mozilla Firefox,Internet Explorer, etc.) and to the address bar enter the IP address of your NAS (default192.168.0.240).

You should now see a login dialog. The dialog consists of two entries. To the first enteryour user name and to the second enter your password. If your device has just beenupdated to Snake OS, the default user name is admin and password snake. If everythingwent fine, you should now see a page with a menu and information about your system.

2.2. My NAS

This is the page you'll see shortly after login. The page contains a summary of yoursystem and a button which will allow you to reboot your NAS.

Here are brief explanations for each line:• Kernel version: Shows current Linux kernel version and variation. Kernel is

responsible for things like I/O management, memory management, devicecontrolling, etc. Snake OS uses currently Linux kernel version 2.6.16 gazineuvariation.

• NAS version: Shows current firmware version of your NAS.• Storage Name: Basically your hostname. For more information, see 2.3.1.• LAN IP Address: IP address of your NAS. It's assigned by DHCP or by Static IP

configuration. Default IP has been set 192.168.0.240 (static).• LAN MAC Address: Basically it is the hardware ID of the NAS' network card.

Snake OS is able to change it though.• Physical RAM: How much there's device's internal memory total/free. Makes

device run faster by storing temporary data here.• Swapfile: “Extra RAM”. A file on a mass memory device which will be used if no

more RAM is available. Disadvantages compared to RAM are slower read/writetime and shortening Flash drives' lifespan.

• Uptime: How long it is from the previous boot.

2.3. Device

This section has all the settings related to the base operation of the NAS

2.3.1. Hostname

This is the place to change your NAS hostname. Hostname is a unique name that isgiven to all network devices. It is your choice how you'll name your device but youshouldn't use the same name on two or more devices. There are also some otherrestrictions that apply but more on that see http://en.wikipedia.org/wiki/Hostname#Restrictions_on_valid_host_names.

2.3.2. Admin

Place to change passwords for the web interface, SSH and Transmission. It is requiredyou to type the password twice to avoid typing mistakes.

2.3.3. LAN Settings

There are the basic settings to get your NAS connected to the Internet

2.3.3.1. IP Address

This is the place where it is possible to change IP address and DNS settings of thedevice. You should be aware that wrong settings here may disconnect your NAS from theInternet.

For starters you should decide whether you want to configure all your settingsautomatically or set them manually. If you decide to use automatic configuration for allsettings, you should go for DHCP by ticking 'Use DHCP Address' and also 'Use DHCP forDNS'. This configuration should be fine on most of the users but it also has its owndownsides. When using DHCP, your router may sometimes forget configured leases andthat way it may assign a totally new IP for your NAS.

There is also a way to do a half-automatic configuration where only IP, Subnet Mask andDefault Gateway are configured automatically. You'll need to configure your DNS settingsmanually. If you're going to do this setup, tick IP settings by 'Use DHCP Address' anduntick 'Use DHCP for DNS'. Now you can follow instructions on next paragraph but skipmanual IP settings part.

The third option is to manually set all the settings. Type a static IP address, netmaskand default gateway according your network configuration. You can read more aboutsubnets in some websites like http://en.wikipedia.org/wiki/Subnetwork. Default IPaddress is 192.168.0.240 and netmask 255.255.255.0, but your may want to change itaccording to your network configuration. Probably default gateway is the computer orrouter that is used to connect to the internet. Type its IP address in 'gateway'.

Set DNS server and local DNS domain. DNS servers are used to resolve names on theweb, that may be same as default gateway or another one. If you have doubt aboutnetwork settings, ask to you network administrator.

2.3.3.2. MAC address

It is possible to change MAC address of the NAS here. You don't need to change this onnormal circumstances.

2.3.4. Web Interface

In this section you can change the default port used to access the NAS web interface.The default port is the 80 (http default).

2.3.5. Time

Settings to change time on your NAS are placed here. You may want to select time zoneof your area and also set time either manually or by NTP (Network Time Protocol)"Internet time".

2.4. Disks

This section contains settings related to the mass storage devices attached to your NAS.

2.4.1. Diskname

In this screen you can assign a name to each one of your disks (or partitions).

The column "Partition" shows the device ID detected by Snake OS. In the field "MountName" you can type the a name for your disk (or partition). To save this, click on "Save"button. You can also delete a name by clicking on "Remove".

2.4.2. Format

This screen lets you to format a device disk or partition. The device will be formatted asext3.

2.4.3. Partition

You can choose mount or umount disks. When you insert a new disk, its automaticallymounted. It's important to umount every unit before to remove it from NAS device.

When sda is mounted, for example, it's possible to locate it in the following path:/usb/sda1 (first partition). If you set a diskname, then you will find the partition under/usb/diskname where "diskname" corresponds to the name you have given, as in 2.4.1.

This path can be accessed through SSH, as will be shown in Chapter 3.

2.5. Services

In this section you can change the settings about your NAS services.

2.5.1 DDNS

DDNS is shortened from Dynamic Domain Name System and it allows you to set amemorable subdomain for your external and dynamic IP. Practically this means you canaccess your NAS (or other device depending on your NAT settings) outside your subnetwithout remembering your external IP ie you can use snake.dynamicdns.com instead of42.42.42.42.

To get started you need to register an account on some of the listed DDNS serviceproviders. After that fill in the details:

Alias: Type your dynamic domain name here

Username: Type your DDNS service username here

Password: Type your DDNS service password here

<SOMEONE SHOULD REVIEW THIS AS IM NOT SURE ABOUT THE LABELS>

2.5.2. FTP

This service enables sending and receiving files through File Transfer Protocol.

The following option can be set in this screen:

• Anonymous FTP folder: is the root location where users will have access to sendand receives files;

• FTP enable checkbox: This option will enable or disable ftp service;• Allow Anonymous: Setting this checkbox you will grant access to anonymous

users in your ftp server;• Anonymous Can Write: Check this to give write permission to the anonymous

users;• Only Anonymous: Check this box to permit only anonymous users to your ftp

server. This way, the users created in the Sharing/Users section will not haveaccess to the ftp server.

Just below there is a label that shows service status. Four buttons can be used to applyconfiguration, start, stop or restart the ftp service.

Many applications (client) can be used to connect to your NAS through FTP service. Ifyou are using Windows, you can download FileZilla (http://filezilla-project.org) or useyour favorite browser. Try to type the following address at Firefox or IE address bar:ftp://192.168.0.240 (using default IP address).

2.5.3. Samba

Samba is a suite of programs that enables interoperability (including file sharing)between a linux distribution (Snake OS in this case) and Windows.

The checkbox "Samba enabled" lets you enable or disable the Samba service. You canalso change the following options:

• Samba domain/workgroup. Insert here your network domain or workgroup. Ifyou are using Windows XP you can find workgroup name by right clicking in 'My

Computer' and selecting 'Properties'. Change to 'Computer Name' tab and look at'Workgroup'.

• Samba security mode. Choose if you prefer anonymous login or by user. Userssettings will be shown in section 2.6.1.

It's also possible to see samba running status and the action buttons: Apply, Start, Stop,Restart.

2.5.4. SSH/SFTP

It's possible to start, stop and restart SSH service through this section. It's also permiteyou to recreate keys. These keys are used to encode data and ensure the privacy overthe web.

2.5.5. Swapfile

The device doesn't have much RAM, so creating a swap file is very useful to improveNAS performance. In this page it's possible to:

• Start swap file usage (checkbox);• Select disk to write swap file to;• Check status (active or not);• Apply changes;• Stop using swap file;• Delete file.

2.5.6. Transmission

This is the configuration page for your BitTorrent client. BitTorrent (BT) is a P2P networkprotocol. The BT client available in SnakeOS is the Transmission. You can checkTransmission web site for more details: http://www.transmissionbt.com/

In this section you can configure the Transmission BT client. This is the screen withTransmission options:

Using the "Current torrent folder" field you can set the folder were the downloaded fileswill be saved. You can also enable or disable the transmission service using the"Transmission enable" check box.

You can also limit the download and upload speeds by enabling the fields "Speed Up"and "Speed Down".

One useful setting is the alternate time speed limit. By checking "Enable Alternate Time"you can define an alternate speed limit for upload and download. These alternate speedswill be used during the alternate time interval defined by "Alternate Time Begin" and"Alternate Time End" fields. You can also enable the alternate time in specific week days.You can play with these limits in order to reduce them during the time you are usingyour internet connection for other things.

The buttons let you apply the settings, start, stop and restart the service.

You can open Transmission home page by clicking in the link "Transmission" using SnakeOS web interface or typing IP address followed by port number 9091 (i.e.http://192.168.0.240:9091).

Transmission and other configuration options will be explained in a further section.

2.6 Sharing

In this section you can: view shared printers; select which folders will be shared; selectwhich users will have reading and writing privileges on it. Users and folders here arerelated to Samba service (see details at section 2.5.2).

2.6.1. Printers

This screen permits you to list which printers are shared, showing name, device and TCPport.

2.6.1.1 Installing the printer in your operational system

After connecting your printer(s) with the NAS you have to configure your computer(s) inorder to use your shared(s) printer(s). This section show how you should proceed toinstall your printer.

Windows XP machine

Adding a new printer:

1) Click on windows "Start" menu, point to "Settings" and select "Printers and Faxes";2) On the left bar of "Printers and Faxes" windows click on "Add printer";3) The "Add Printer Wizard" will show up;4) Click "Next", select "Local printer". Make shure that "Automatically detect and

install my Plug and Play printer" is not selected. Click "Next";5) On this screen, select "Create a new port", highlight the Standard TCP/IP Port at

the pull-down menu;6) The "Add Standard TCP/IP Printer Port Wizard" window will then appear. Click

"Next";7) Type in the IP address assigned to the NAS in the "Printer Name or IP Address"

box, Click "Next". The "Port Name" field will automatically be filled in. Click "Next";8) The "Additional port information" screen will appear. Select "Custom", click

"Settings" button, and click "Next";9) In the "Configure Standard TCP/IP Port Monitor" window, select "RAW" protocol

and specify the necessary port number (9100, 9101 for second printer, etc). You canverify this number in the SNAKE OS web interface at "RAW TCP port" field of the sharedprinter(s);

10) Click "Ok" to close the "Configure Standard TCP/IP Port Monitor" window and"Next" on the "Add Standard TCP/IP Printer Port Wizard" window;

11) Click "Finish" to end the wizard;12) Select the appropriate printer manufacturer and printer type in the list. If the

desired printer is not on the list, click "Have Disk" and insert the printer driver disk thatcame with your printer to install the printer drivers. Click "Next";

13) Type in a new Printer name or leave it in default, and click "Next" button;14) In the last step you can print a test page. Click "Next" and "Finish".

Modifying an existing printer:

You can modify an existing (installed) printer. You should change the port that theprinter is using to a TCP/IP printer port, like the procedure stated above. This resumedprocedure was taken from http://www.dd-wrt.com/wiki/index.php/Printer_Sharing#Workstation_setup:

1) Find your printer in Control Panel - Printers etc. and open the properties page forit.

2) Select the Ports tab.3) Click Add Port and choose Standard TCP/IP printer port and click New Port4) Enter you router's IP address (normally 192.168.1.1) and click Next5) Set Device type to custom and click settings.6) Make sure RAW is selected and specify the necessary port number (normally 9100,

9101 for second printer, etc) and click OK7) Click Next and Finish and Close8) Make sure the newly created port is selected for your printer and click OK

Windows 7 RC

Thanks to Dcirne to provide these steps.

Adding a new printer:

1) Click on windows "Start" menu, point to "Printers and Devices";2) Choose "Add printer";3) Select "Add network, wireless or bluetooth Printer";4) Select "Desired printer is not listed";5) Mark "Add printer using TCP/IP Address or hostname";6) Choose "TCP/IP Device" and type IP address of the NAS;7) Uncheck "Check printer and automatically choose the driver to use";8) At "Device Type", choose "Custom" and click "Config";9) Choose raw protocol, enter correct port number (default is 9100, which is also the

NAS' default port for 1st printer);10) Click "OK" and Click "Advance";11) Now choose the printer driver from the list install it with "Have disk" option;12) Choose a printer name and whether to share it or not;13) Check if the just installed printer will be the default one;14) Print a test page if you want.

2.6.2. Users

When selecting 'Users' the following options will be displayed:

New: Click here to add a new user, which will have rights to access a certain folder.Edit: Click here to modify options about the user selected on the list.Remove: Click here to remove the user selected on the list.

2.6.3. Shares

In section 2.5.3 samba service was started and security mode was selected. Now youwill select which folders will be seen by which users (if you have choosen 'User andPassword Required').

Type some description for sharing in 'Share Name'. Then click in 'Shared Folder' text boxto browse some location which this sharing will point to. In next field, select if this folderwill be writable. Allowed user is the users that have rights to access the 'shared folder'you just selected.

2.7. System

This menu has some options about system status and configuration.

2.7.1. Status

Select this item to view system status. Kernel version, NAS version, IP address, MACaddress, RAM, swapfile and uptime.

2.7.2. Log

In this screen you can view the system log since the device has booted. The listing hereis equivalent with the output of a "dmesg" command issue at linux command terminal.

2.7.3. Monitor

This function is very useful to know how much physical memory, swapfile and cpuprocessing is being used by system.

2.7.4. Config

Some actions require that system configuration be saved, like password changes, torrentclient options and other settings. After changing options like these, click in save button.To reset settings to default, just click in "Set default" button.

2.7.5. Firmware

Here you can update firmware used in your NAS. It's possible to use Snake OS or anyother, just like you did to update from original firmware to Snake OS.Snake OS has a special version beside original firmware format. It's a smaller and saferto update version, as said in section 1.3.1. Click in 'browse' button, select a firmware file(full or safer version) and clic 'Go' to start updating. It can take several minutes.

2.8. Transmission

This links opens a BitTorrent client Transmission in a new window.Transmission administrative interface runs by default on port 9091.The port used by default for file sharing is TCP port 51413.

3. SSH

SSH (Secure shell connection) is a kind of a remote access protocol to control your NASremotely from a command line. It is recommend that only advanced users will use thisapproach to control their devices since it is possible to harm proper operation of thedevice here.

3.1. SSH clients

Before going any further on SSH you should determine the SSH client of your choice. Ifyou are using Microsoft Windows as your operating system it is preferable to use PuTTYas your SSH client. It is the most popular client for Windows systems.

In Linux side you may use utility named 'ssh'. For example in Ubuntu Linux you caninstall the package 'openssh-client' which will do the job. For usage instructions, seenext chapter.

3.2. Accessing NAS

Once you have installed your favorite SSH client, you have to configure it to be able toaccess the NAS. You will need to know the IP address (default is 192.168.0.240) andSSH port (default is 22) of your NAS.

On Linux side, open up your favorite terminal emulator and run ssh utility by typing:

ssh 192.168.0.240 -l root

You should use IP of your NAS!

Appendix A - FAQ

Q: Will it work with my internet provider (like Velox, Virtua, Speed and others)?A: Yes. It doesn't matter what provider you have, it's necessary NAS be configured likeanyother computer. Look at section 2.3.3 to see more information about LAN settings.

Q: Which binaries can I download or compile to use with these NAS models?A: You need to have linux ARM binaries.The processor is compatible with armv4tinstructions.

Q: My NAS will stop freezing when I install snake OS?A: Original firmware has some problems related to CPU usage that causes freezing. Thisproblemwas solved in Snake OS.

Q: What is the importance of using swapfile?A: When system memory is full it will be necessary to use swapfile when applicationsneed morememory. When using swapfile you ensure memory requests will not be denied toapplications (like Transmission). If an application tries to allocate more memory than the

system have, your device can stop applications or freeze. A swapfile minimizes this risk.

Q: Is it possible to use USB hub?A: Yes, you can use a USB hub and have more flash drivers connected to it.

Q: Does Snake OS support NTFS?A: Yes, Snake OS supports NTFS for reading and writing. However, it could be a betterperformance if you use ext3 or other Linux native file system.

Q: How can I know the version installed?A: In the web admin interface, go to System -> Status, it will show OS version as "NASVersion".

Appendix B - Troubleshooting

B.1. I've just updated to Snake OS but now my system doesn't start.Check if the system led start. If not, you will have to make a serial connection to debug.Refer to appendix.If the system led start, it may have a cabling problem or your computer is not on thesame network as NAS. Refer to LAN Address section for info on how to setup yournetwork.

B.2. My system stop starting suddenly.Try to disconnect it from network and power and check if the system led start whenrestarted.

B.3. I can't see my NAS at Windows Network.Provided your system is working and accessible by web admin interface, check Sambaworkgroup settings, and if you are running SNAKE OS beta3, at least.

B.4. I can't access my NAS when I type its IP address at Windows, like \\192.168.0.240It may have a cabling problem or your computer is not on the same network as NAS.Refer to LAN Address section for info on how to setup your network.Check if Samba service is started.Check if you have user and password created on your device. When in samba "User andPassword Mode", the computer only show NAS shares if authenticated.

B.5. I can't update firmware because Snake OS says binary file is invalidFile may be corrupted. Try to download it again.Check if you are running the correct firmware image. Refer to Updating firmware sectionfor details.

Appendix C - How To set up a serialinterface

This how to will help you to set up a serial connection with the NAS 652. This method isbased on the information taken from DealExtreme NAS google group:http://groups.google.com/group/dealextreme-nas-?hl=en

C.1. Hardware setup

The first thing you have to do is open the NAS in order to find the serial connection pins.This picture taken from the group’s files area shows where the pins are and theirfunctions.

You will need to connect the pins GND, Tx and Rx to a TTL serial cable. This means thatthe voltages used to transmit the information will be 0 volts to represent bit zero and 5volts to bit one. You MUST NOT connect a RS232 serial cable directly. The RS232standard interface uses a voltage range between +5 and +15 volts to represent bit zeroand -5 to -15 volts to bit one. This RS232 voltages will burn your NAS.

So, you have basically two options:1) Use a serial cable that uses TTL voltage levels;2) Build a RS232 to TTL level converter. This is a simple circuit based on the wellknown and easy to find chip MAX232. You can easily find a circuit like this in web.For example: http://pinouts.ru/Converters/rs232-TTL_cable_pinout.shtml

If you choose the option 1, the easiest one, you will find a suitable cable in dealextreme,like the one posted by JG on 2009 May 4:http://www.dealextreme.com/details.dx/sku.13638

This cable is used for Nokia cellphones. It is basically a USB to serial converter withoutthe MAX232 chip to convert the voltage levels to RS232.

The picture below shows this cable. In this picture, the cable end that would connectwith the cell phone was cut off and changed by a female pin connector (like those onesused to connect the front panel leds in a PC motherboard). In the NAS board holes themale pins was soldered.

This is a closer look at the usb connector end:

As can be seen from the above picture the pins names are labeled on the circuit board.So, you just have to connect the Tx wire (green one in this picture) with the with the Txhole in the NAS circuit board. The same applies to Rx (blue wire) and GND (white wire).That is all the hardware you will need to connect your nas on an usb port of your PC.

C.2. Software setup using Windows XP

After plunging the usb-serial cable, your computer will automatically install a new COMport. In my case it was COM3. Firstly, you should verify what port was created in yourcase. To do this, right click on “My computer” on desktop or windows explorer. Click on“Properties” and choose the tab “Hardware”. Click on the device manager button.

A list of all your hardware devices will show up. Expand the “Ports (COM and LPT)” tosee all the ports you have available. The port created when you attached the usb cableshould be there like something as “Prolific USB to serial converter (COM4)”. In thisexample it was created the serial port COM number 4. This port number may changedepending on the usb port that you connect the adapter.

Now you have to set up the connection. In windows you can use the Hyper Terminalprogram. You will find it on StarMenu/Acessories/Communications.

Open Hyper Terminal. If you have not used it before, it will ask you some informationsabout your contry code and phone area code. Cancel this (press cancel, yes and ok) andyou will get something like this (the windows used to obtain these screenshots was inPortuguese language):

Give a name for your new connection and press OK. You can cancel again if it asks thecountry and area code. After that you will see something like this:

Choose the port that was assigned to your usb cable and press ok.

On port configurations you have to fill the fields with the serial connection parameters orthe NAS chipset, that are:

Bits per second: 38400Data bits: 8Parity: NoneStop bits: 1

The flow control field you can leave it with the default value.

Press OK and your connection is done.

Now you have just to connect the serial cable on NAS and turn it on. You will see onHyper Terminal screen the boot and kernel messages. You can press any key during theuboot start up to have the uboot terminal.