How to upgrade Pidgin and fix Yahoo problem in Ubuntu 9.04


Some days ago, I couldn’t even sign in my Yahoo account in Pidgin. At that time, I guessed that having some problems and was waiting for upgrade version of Pidgin. Finally, the new version 2.5.7 has been released on 20th June wih new bug fix.

Version 2.5.7 (06/20/2009)

In my option, I always want to get newest packages from their repositories instead of default Ubuntu’s repositories, so we need to update PPA.

Step 1: Setup PPA

To setup the PPA, copy-and-paste these commands into a terminal:

sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com \
     67265eb522bdd6b1c69e66ed7fb8bee0a1f196a8

and

echo deb http://ppa.launchpad.net/pidgin-developers/ppa/ubuntu \
    `lsb_release --short --codename` main | \
 sudo tee /etc/apt/sources.list.d/pidgin-ppa.list

Step 2: Update pidgin

Update repositories by typing command:

sudo apt-get update

Now you will be able to get new Pidgin version.

Have fun and enjoy your Pidgin messenger.

Please have a look at http://www.pidgin.im for more information.

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Howto, Ubuntu

Real-Time Application Interface: RTAI 3.7.1 available

Today, I get email from RTAI mailing list that they announce RTAI 3.7.1 to all users and developers which are using RTAI for their system.

The RTAI 3.7.1 release is available at <https://www.rtai.org/RTAI/rtai-3.7.1.tar.bz2>

It contains:

- Substantial updates to RTAI-Lab (Roberto Bucher):
- A better support to install different versions of Scilab: scilab-4.12, scicoslab-4.3 and scilab-5.1.1
- Addition of new icons to scicoslab pal-trer
- Scilab/Scicos Log added (thanks to Holger Nahrstaedt)
- Support of multiple COMEDI counters and encoders in Scilab/Scicos (thanks to Guillaume Millet)
- Added support for COMEDI comedi_get_subdevice_flags (Guillaume Millet)
- x86 and Powerpc upgrade to Linux-2.6.29
- Various reworks of async Linux servers, including support of mpxed socket calls
- Few fixes of build glitches
- More consistent behavior for self changed priorities (Matthias Richly)

Not in this release but to be noticed are the new Linux Board Support Package supports for RTAI-3.6.2/mcf54455 and RTAI-3.7/mcf5329 available at RTAI home site, contributed by Freescale Semiconductor (Valentin Pavlyuchenko).

In my option, RTAI nowadays they releases new version very often. It can support newer kernel version which in the newer Linux distros.

Get fun!

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Real Time System

How to install RTAI, ComediLib in Ubuntu 8.10, Ubuntu 9.04

Last several months ago, I have done to install RTAI, ComediLib in Ubuntu 8.04. Actually, I have spent a lot of time to config Ubuntu system. It faces a lot of problems but finally it has finished.

Now new RTAI package version 3.7 which supports Linux kernel 2.6.28 has been released with a lot of features:

-  support for m68knommu (NEW) (Valentin Pavlyuchenko)
- upgraded ARM (Torsten Koschorrek)
- lots of RTAI-Lab upgrades (Roberto Bucher; note that RTAI now integrates to Scilab 5.1
- multi port serial driver with shared interrupts (Renato Castello)
- rt_poll on mbx and sems
- SMP locks as for Linux ticket way
- RTDM support upgrade
- improved watch dog
- revised COMEDI support, async services and insn list work now
- revised Linux sync-async servers
- Linux support up to 2.6.28
- netrpc 32/64 bits inter operation
- shortened locking and timer replay in scheduler
- upgraded TLSF mem allocator
- rtai-py (python support)
- more so called “minor fixes”

Now I base on this tutorials from QRtaiLab, I hope it is better tutorial for Ubuntu 8.04 and Ubuntu 9.10. QRtaiLab is a QT based application, it is better than XRtaiLab. You can see the comparision here.

Packages:

UBUNTU 8.10 (works also on 9.04)

Sources

LINUX (kernel.org)

cd /usr/src
sudo wget http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.28.7.tar.bz2
sudo tar xjvf linux-2.6.28.7.tar.bz2
sudo ln -s linux-2.6.28.7 linux

RTAI (https://www.rtai.org) (cvs-Version)

cd /opt
sudo cvs -d:pserver:anonymous@cvs.gna.org:/cvs/rtai co magma
sudo ln -s magma rtai

RTAI (https://www.rtai.org) (tar.gz-Version)

You have to use a Version of 3.7 or newer, because older version are not compatible with gcc 4.3.3!

cd /opt
sudo wget –no-check-certificate https://www.rtai.org/RTAI/rtai-3.7.tar.bz2
sudo tar xjvf rtai-3.7.tar.bz2
sudo ln -s rtai-3.7 rtai

COMEDI (www.comedi.org)

cd /opt
sudo cvs -d :pserver:anonymous@cvs.comedi.org:/cvs/comedi login
sudo cvs -d :pserver:anonymous@cvs.comedi.org:/cvs/comedi co comedi
sudo cvs -d :pserver:anonymous@cvs.comedi.org:/cvs/comedi co comedilib
sudo cvs -d :pserver:anonymous@cvs.comedi.org:/cvs/comedi co comedi_calibrate
sudo cvs -d :pserver:anonymous@cvs.comedi.org:/cvs/comedi co comedi-nonfree-firmware

Scilab 4.1.2 (www.scilab.org)

cd /opt
sudo wget http://www.scilab.org/download/4.1.2/scilab-4.1.2-src.tar.gz
sudo wget http://www.scilab.org/download/4.1.2/man-eng-scilab-4.1.2.zip

QRTAILab (www.qrtailab.sf.net) (svn – version)

cd /opt
sudo svn co https://qrtailab.svn.sourceforge.net/svnroot/qrtailab/trunk qrtailab

QRTAILab (www.qrtailab.sf.net) (tar.gz – version)

cd /opt
sudo wget http://downloads.sourceforge.net/qrtailab/QRtaiLab-0.1.6.tar.gz
sudo tar xvzf QRtaiLab-0.1.6.tar.gz

Installation

Kernel

PATCH Linux Kernel

cd /usr/src/linux
sudo su
patch -p1 < /opt/rtai/base/arch/x86/patches/hal-linux-2.6.28.7-x86-2.2.06.patch

Configure Kernel

At first you should find out your architecture:

dpkg –print-architecture

for i386:

A sample config-file for i386 is available from here

cd /usr/src/linux
sudo wget http://hart.sourceforge.net/files/config-2.6.28-rtai_i386
sudo cp config-2.6.28-rtai_i386 .config

for amd64:

cd /opt
sudo tar xvzf scilab-4.1.2-src.tar.gz
sudo unzip man-eng-scilab-4.1.2.zip
sudo mv man-eng-scilab-4.1.2 scilab-4.1.2/man/eng/
cd scilab-4.1.2
sudo ./configure –with-gfortran –with-tk –with-gtk2
sudo make all
sudo ln -s /opt/scilab-4.1.2/bin/scilab /usr/local/bin/scilab

QRTAILAB

If you use a tar.gz-version please replace qrtailab with qrtailab-x.x.x (x.x.x is the number of your installed version )

cd /opt/qrtailab

Edit qrtailab.config and replace ‘/usr/include/qwt/’ with ‘/usr/include/qwt-qt4/’ and ‘-lqwt’ with ‘-lqwt-qt4′. Here is my qrtailab.config content:

##############################################
# library path
##############################################
DEPENDPATH += . /usr/local/qwt-5.2.0-svn/lib
INCLUDEPATH += . /usr/realtime/include /usr/include/qwt-qt4/
LIBS +=  -lqwt-qt4
#CONFIG += debug
#############
# do same tests
############

#CONFIG += QRLtests

Now we are going to compile QRtaiLab:
sudo qmake-qt4
sudo make
sudo make install

It is demo running RTAI, QRtaiLab on Ubuntu 8.04 I did before:

YouTube Preview Image
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Real Time System