ptEduroam is an international roaming service to provide internet access to students, teachers and researchers in higher education. Its configuration allows us not only to access the Internet locally but also in any other University that has the Eduroam network available.

The following steps represent the basics to configuring Eduroam in an Android device:

 

1. Installing the Security Certificate (Optional)

This step is not absolutely needed but it is important if you need to use Eduroam in different Universities than your own.

These represent the steps for the installation of the security certificate for the University of the Algarve. If you are from a different University, you might need your University’s certificate.

First, connect to the “eduroam-install” network, open a browser, go to wireless.ualg.pt and download the certificate:

Screenshot_2014-02-04-18-54-39      Screenshot_2014-02-04-18-55-24

To download it, hold the certificate’s link for a few moments and select “Save link”. The Certificate should have a name like “root.der” or similar:

Screenshot_2014-02-04-18-56-10       Screenshot_2014-02-04-18-56-45

In order to install the certificate in Android, you need to change its file extension from “.der” to “.cer”. To do so, open Donwloads and change the file name from “root.der” to “root.cer”:

 Screenshot_2014-02-04-18-56-55      Screenshot_2014-02-04-18-57-01

Now you can install the certificate. Go to “System Settings >> Security” and select the option “Install from SD card”. The certificate should be detected automatically and now you can change its name to Eduroam:

 Screenshot_2014-02-04-18-57-30     Screenshot_2014-02-04-18-57-36

* In case the certificate is not detected, try and place it on the system storage root instead of the Downloads folder.

**To install the certificate, you might be prompted to insert a screen lock password.

2. Configure Eduroam Network

In the available networks connect to “eduroam” and insert the following configurations:

 Screenshot_2014-02-04-18-58-38      Screenshot_2014-02-04-18-58-42

Security: 802.1x EAP

EAP Method: PEAP

Phase 2 authentication: MSCHAPV2

CA Certificate: eduroam (in case you installed the certificate in step 1)

User Certificate: don’t change anything here

Identity: your student email address (eg: axxxxx@ualg.pt)

Anonymous Identity: don’t change anything here

Password:  your student account password

Finally just click “connect”. After this, your device should be ready to surf the web in any University with access to the Eduroam network!

Screenshot_2014-02-04-18-53-24      Screenshot_2014-02-04-18-53-44 

Here are the new tools on eLab Hackerspace :Dpt

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  • Power drill 500 W
  • 5 Power extension cord
  • Dexter saw
  • 204 Piece mini-drill accessories toolset
  • Toolset  – 17 hand tools + 20 bits (Slotted, Philips, Torx, Hex)

Ubunpttu installation alongside Windows has always been relatively easy to do, however, the new computers with Windows 8 have new safety and protection mechanisms and new Bios (UEFI), that make this process a little harder.

This post will guide you through the necessary steps to achieve a successful Ubuntu installation, alongside Windows 8.

Windows Backup

Managing disk partitions is always a risky job, therefore it is advised to make a backup of your Windows files. This way, if things go wrong, you still have a last chance of recovery.

In the Windows Start menu type: “Windows 7 File Recovery” and select that option:

backup

For some weird reason, although this is a Windows 8 machine, this tool is still called “Windows 7 File Recovery”.

On the left panel, select “System Repair Disk”:

recover disc

And also a “System Image”:

image system

Make sure you complete those actions.

Reducing Windows Partition

After that it’s time to reduce the Windows partition, so you can free up some space for Ubuntu.

Right click over “Computer” and select “Manage”,  then “Storage” and then “Disk Management (local)”:

disk management

Right click the Windows partition, and select “Shrink Volume”:

reduce

Then you can select how much space you want shrink from the Windows partition. In our case, we selected around 250GB because the disk was 1TB and we’re only using about 55GB (yes, the images have different values because they were taken afterwards, just ignore that :P).

Preparing the Ubuntu Installer 

First you need to download Ubuntu at: http://www.ubuntu.com/download/desktop

We selected the 12.04 – 64 bits version. It is essential that you choose the 64 bit version, because new Windows 8 computers come with UEFI/Secureboot, which is not compatible with the 32 bits version.

Then we prepared this version on a 2GB USB pen drive using the program UNetbootin: http://unetbootin.sourceforge.net/

unetbootin

You should choose the second option, “Disk Image” and then select the downloaded version. At this point you should make sure that you select the correct disk that corresponds to the USB drive. Then press OK.

Deactivating Fast Startup and Secureboot 

To make sure that the operating system is installed properly, these 2 options must be disabled.

To deactivate the fast startup, you should go the “Control Panel” and select the “Energy Options”.

energy

On the left side, select “Choose what the power button does”.

Then activate, on the top the page: “Change settings that are currently unavailable”.

cover_c

At the bottom at the page, at “shutdown Settings”, deactivate the option “Turn On Fast Startup”:

fast boot

And save the new settings.

Then it is necessary to deactivate the Secureboot. This tool was implemented in Windows 8 with the new UEFI Bios, as a safety mechanism to prevent malicious software from booting in your PC, as well as “non authorized” operating systems.

Therefore, this tool will block any operating system from starting, besides Windows 8. So it must be deactivated.

In order to do that, it’s necessary to access your computer Bios, search for the option “Secureboot” and change it to “Disabled”:

IMG00408

The boot priority should also be changed to USB, so that the pen drive can be started at the boot.

After this, the Ubuntu installation can finally start.

Ubuntu Installation

You should now connect the USB drive to the computer and restart the system. A menu should appear with Ubuntu options, although in our case, we got a distorted menu:

IMG00411

But even though we couldn’t understand it, the right option should be the first one, so just pressing “Enter” should be enough.

Ubuntu will now be started normally through the USB drive:

ubuntu

Here, you can just start the installer: “Install Ubuntu 12.04″

You should select the language options, internet connections and then the installation type:

install

Select “something else” to install Ubuntu with user defined options

It is advised to create 4 partitions:

1.    /boot – System boot installation

Size: Arround 300 MB should be enough
Partition type: primary
File system type: ext2
Mount Point: /boot

2.    /   – File system installation

Size: variable
Partition type: Logic
File system type : ext4
Mount Point: /

3.    /home – personal files storage

Size: variable
Partition type: Logic
File system type : ext4
Mount Point: /home

4.    swap – Virtual memory dedicated partition

Size: depends on the RAM, but in this case we used about 6GB
Partition type: Logic
File system type : swap area

After all partitions have been created its fundamental to indicate which partition will be used for the bootloader installation, in this case /boot.

Then the installation can be completed as you normally would.

Boot Manager

After the installation you can shutdown the computer and remove the USB drive. Then you can restart you computer and check what happens. Ideally the boot menu should appear, allowing you to choose between operating systems, however this usually does not happen. One of the following will probably happen:

  • Windows is started
  • Ubuntu is started
  • None starts

If none of the systems starts, this probably means that the secure boot option was not disabled.

If one of them starts, that means there is a problem with the boot management. To fix this it’s necessary to go back to Ubuntu, with the USB drive again.

Open a terminal console and install the boot-repair through the following commands:

sudo add-apt-repository ppa:yannubuntu/boot-repair
sudo apt-get update
sudo apt-get install boot-repair

After the installation, just go to boot-repair and select “Recommended repair”:

bootrepair

During this process, the program will require some commands to be inserted by the user in the terminal, you can just follow the instructions.

At the end, you can restart the computer and grub2 shall now appear as your boot manager.

Some boot options should now appear. In our case they were the following:

  • Ubuntu, com Linux 3.8.0-31-generic
  • Ubuntu, com Linux 3.8.0-29-generic
  • Previous versions
  • efi/EFI/Boot/bkpbootx64.efi
  • Windows UEFI bkpbootmgfw.efi
  • Windows Boot UEFI loader
  • System setup

First option is responsible for starting Ubuntu and “Windows Boot UEFI loader” will be responsible for Windows 8.

The computer is now ready to be used with Ubuntu 12.04 and Windows 8.

Boot Manager Customization (optional)

In order to simplify the available options you can also install the “Grub Customizer”.

Among other things, this applications allows you to:

  • Set the default operating system;
  • Set the boot manager timeout;
  • Hide/Show boot options;

To install this tool you can just open a console and insert the following commands;

sudo add-apt-repository ppa:danielrichter2007/grub-customizer
sudo apt-get update
sudo apt-get install grub-customizer

Then you can open the program and start customizing.

In the first tab you can eliminate/hide non desired options, so that the menu will only show the options you want. In our case, we only left one option for Ubuntu and one for Windows. With a right click you can also rename the entries, which in this case we did for “Windows Boot UEFI loader” to just “Windows 8”:

grub

Deleted entries go to the trash bin but they can be restored at any moment:

grub2

In the middle tab, you can set the timeout for the menu to appear as well as the default operating system to start:

grub3

“quiet splash”  in “kernel parameters” indicates that nothing will be displayed while Ubuntu is loading.

Then, at the final tab, you can also select a background image and text colors for the boot manager:

grub4

After you’ve made all the changes, just save the settings and restart your PC.

Now, during the system boot, a menu with 2 options should appear:

IMG00415

And that’s it! Ubuntu is now ready to be used, alongside Windows 8 and with a simplified boot manager.

IMPORTANT: Some Windows updates can deactivate the boot manager. If that happens, you might need to go back to Ubuntu and reactive it again.

Be aware that dealing with partitions is a risky job if you don’t know what you’re doing. You can do permanent damages and lose data.

ptRecently we needed a box to protect the BeagleBone development board.
With a limited budget and after a search on the internet for solutions we decided to make our own box:
a Lego box! It was time to pick them in our old toy boxes :D
Check the results in images:

DSC01928 DSC01929 DSC01931 DSC01932 DSC01934

Find more info about BeagleBone in:

http://beagleboard.org

pt

In the past April’s 11th, another open day took place at University of the Algarve. An initiative that received dozens of high school students, providing them with a small visit into the world of knowledge and investigation. This important informative event, plays a fundamental role divulging UAlg’s last studies and projects, allowing students to obtain relevant information that will allow them to make a good decision about their future in higher education.

DSCF4209

eLab Hackerspace had the opportunity to participate in this event, preparing a small exposition of projects developed by its members, introducing itself to everyone and at the same time, promoting learning, personal development, reusing of old electronic devices and the share of knowledge. This way, visitors were offered an interesting and pedagogical experience, while calling on to their creativity, and capability, with more or less work, to create their own projects.

Here’s a video of Localvisão about the open day at UAlg:

 

And also a few photos from the event:

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And so eLab Hackerspace takes part in another a social event.

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