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Contents A) Determine the best way to make a product and to ensure it is built correctly. B) Create plastic types for use in a product. C) Design the mechanical aspects of a product. D) Design the electrical aspects of a. How are robot keys generated quizlet.
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Introduction
Setting up the rt61 card requires compiling the kernel modules. This is very simple if you follow the below step by step instructions. These instructions have been tested on Ubuntu 6.10 (a.k.a. Ubuntu Edgy Eft), they could work on other release of Ubuntu.
**NOTE: On Ubuntu 8.10 (intrepid), rt61 seems to work out of the box so you doný need to take any of these steps!
Installing the necessary packages for the compilation
You will need to install a few packages for the compilation process. For installation of packages, please refer to InstallingSoftware.
- gcc
- build-essential
- linux-headers
If you are familiar with the command line, you could type the following command:
If you get the error:
Try
Getting the RT61 Driver from Ralink
Ralink Web Site have the Linux driver for download, check http://www.ralinktech.com/support.php?s=2 and download the latest stable version (the current version is 1.1.0.0 as of January 2007: RT61_Linux_STA_Drv1.1.0.0.tar.gz). To download the version, you can use your favourite browser, or you can use the command line as follow:
* a note form a community user who changed this doc,: read the readme.file. i have just changed the urls to correct ones.
Compilation of the Module (driver)
You will need to enter the following operations on the command line. It is assumed that the downloaded driver is in the current directory.
Now, (at least for Gutsy) you need to do a minor modification to one of the files to make it compile. The following sed and mv commands do the job.
Also, change this in rtmp_main.c (starting line 196)
to
Finally, execute make to build the module.
The module is now compiled.
Installation of the module
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Continuing from the previous section, you will need to enter the following commands:
Configuration of the module
The Ralink modules is configured using a single file. If you know how to use vi or vim, it is perhaps more suitable to use it. But in case you do not, you can use gedit but take care not to use any characters that are not ASCII.
The vi way
The gedit way
What to modify?
At this point you need to look at the readme/docs, basically you set most stuff up in this data file rather than /etc/network/interfaces.
Run
to find out what networks the card can find.
For WPAPSK authentication, you could change the settings as following:
NOTE: For some reason there seem to be problems if the WPA key is longer than 52 characters and/or contains non-alphanumeric characters.
Activating the module (driver)
The pre-installed module, which is broken has to be removed. From the command line, enter:
Then, we can load the new module that we have just installed:
To check if the module is activated and working, you should verify that ra0 device is visible in the output of iwconfig:
Setting up the system
As we did in the previous step, we need to deactivate the pre-installed module. This can be done automatically at start-up by adding an entry in a black list. From the command line:
Then, the correct (newly installed) module has to be loaded (do not forget the option '-a' after the tee command):
The last step is to modify the file /etc/network/interfaces to set-up your specific networking settings. Depending if you want to use DHCP (recommended) or static IP address you have two different configuration, but in both case you need to first edit the file:
Dynamic IP - DHCP (recommended)
The content of the interfaces file should look like this:
Static IP
The content of the interfaces file should look like this:
Getting your network up and running
Everything is now done, you just have to tell so to Ubuntu. You can either reboot, but instead of loosing your time, you can simply type this command:
Feisty Fawn Installation
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With Fesity Fawn the rt61 drivers are included in the basic install. So downloading and compiling drivers is unecessary. It may be important (and time saving) for you to note that if you require either no or WEP encryption the Network Manager applet can usually be used seccessfully to establish connectivity. This guie will concentrate on getting WPA encryption to work. Specifically WPA-PSK using TKIP.
Which Chip Set Do I Have?
The rt61 has two main chipset types
- (note that PCI could be replaced with USB or another bus type) and the later version
If your system is running the rev B version you can continue with this guide as is. However if you are using the original then you will need to uninstall the Network Manager applet as otherwise the network destinations will always return as unreachable. The Network Manager can be uninstalled using the following command:
Getting Started
The first thing to do is check that Ubuntu has indeed detected your card and that the appropriate driver is available. This is done as follows:
Next, having established that the card is recognised and an appropriate driver is available you need to check that Ubuntu has already configured an interface for the device.
This shows that the interface has been configured as ra1. Note that in previous versions of Ubuntu, this would be ra0, but in Feisy Fawn it is normal for a fresh installation to name the interface as ra1.
Disabling the Interface
The interface needs to be taken down in order for the changes we are going to make to take effect. This is done as follows:
It is a good idea to type ip a after this in order to check the device has been taken down successfully. If it has then the ra1 interface should not appear in the output.
Configuring the connection
The next job is to configure the connection with the parameters specific to your network. For this you will need your: 1. SSID (Network Name as broadcast by the router) 2. Encryption Type (Here we are assuming WPAPSK TKIP 3. Secret WPA Key (this is the hexadecimal key NOT the passphrase. If you only have the passphrase you can generate your WPA Key using the following command:
OK now the connection can be configured as follows
Typing iwconfig should display the new details of your connection. However don't worry if it the link quality is still 0/100 because sometimes the changes don't apply until the interface is brouught up again.
IP and Routing Details
The next thing to do is set the IP address of the card and bring it back online (up)
OK so now the IP address is all set up and the network can detect the network and has a link quality of above 0. The next thing is to set up the routing table. Delete the default gateway from your machine and replace it with that of the new connection.
The Gateway IP address is usually the internal IP address of your router. Typing route at the command line should show you the inclusion of the default path to the wireless gateway.
You can now test this link by pinging the router
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We are almost there but, at present the computer can only communicate with the gateway as it does not know where to find other hosts. For this we need to establish a DNS (Domain Name Server).
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You should now find that the computer can ping any address on the internet.
HAPPY BROWSING!!
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Automatic Configuration on Startup
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Obviously you won't be wanting to go through this process every time the computer boots so we need to write a script in order to do this for us. There is a configuration file called /etc/network/interfaces that we need to modify in order to make this happen.
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At the beginning add the following code:
Enter Passphrase For Key
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