While using Empathy if you feel some problem, start empathy using the terminal and find the errors. Goto terminal, use
rosarioarun@ros-lap:~$ sudo empathy
Now you can find the errors displayed, try to fix the errors… If you dont get the call option in the context menu, try to solve the errors. Me getting the Call option in the context menu. or Mail me the errors we will try to find the solution.
Here is my encounter with Virtual Box. You may download the iso file the operating system from internet, if you wish to boot them with out burning them to a cd or if you have your iso file in pendrive or external harddrive, and if you want to boot them from the drive directly, the answer is here.
Virtual box is a project developed by SUN. Download VirtualBox software from the link below, for your favourite operating system you are using and boot any operating system from any.
Here in my encounter, i have booted Ubuntu Ultimate Edition, that is as an downloaded ISO file in my home directory. Download the Virtual Box deb package from,
And then install it just by double clicking the deb file. You can start the Virtual Box software from the menu Applications->System Tools->Sun xVM Virtual Box. As Virtual Box requires some write permissions, its better to start in the command using su. So, move to the terminal and give the command
rosarioarun@ros-lap:~$ sudo VirtualBox
In the Virtual Box Window,
Now the Virtual Box Main Window will appear back.
The ISO that i wish to boot is in the location
/home/rosarioarun/Desktop/ultimate-edition-1.8-x86/ultimate-edition-1.8-x86.iso
Click on the Name you just created (Ultimate) and click Start. Read the Capture info and click ok.A wizard will appear.
Virtual Box Software with Inserted Bootlist
The OS will be booted as a separate window, you can capture and uncapture to go inside and come out the new OS booted.
OR, Select the Name and click Settings,->CD/DVD-ROM-> ImageFile and select the Image file u wish to boot. And click Ok.
Now click Start to boot the new OS.
After Booting Ubuntu Ultimate
Inside Ultimate with VirtualBox
Virtual Box is a community delovped project, by SUN for the purpose of OS Virtualisation. That is, any other operating systems can be booted inside other operating systems inside a virtualisation window. The Virtual box software will manage the resources required for the newly booted software and the currently running software. It will allocate the free resources within itself, to boot the new operating system virtually.
Presently, VirtualBox runs on Windows, Linux, Macintosh and OpenSolaris and many other guest operating systems. So this includes almost all most frequently used operating systems.
With Virtual box you can boot Guest operating systems in USB, Portable hard drive, or ISO images of operating systems in any host operating system. That is you can boot the downloaded iso images of opertaing systems(linux) in live -cd mode without burning them to a cd.
Normally most the linux distros comes with gcj, which is a Java compiler for gnome. Most of the java programmers prefer only jdk. So how to compile and run a java program in linux. Download the latest jdk from the sun website. (jdk-1_5_0_16-linux-i586.bin for a x86 system)
And then to install jdk use the following
rosarioarun@ros-lap:~$ ./jdk-1_5_0_16-linux-i586.bin
This will extract the jdk and give an folder in current path as, jdk-1_5_0_16, this folder will have all bin, lib directories required by the javac compilation and execution.
All the contents inside this directory will be same as the conents when you install the jdk in the windows. You will have a question that, why not i use the extracted jdk folder in windows, in linux to compile the java program in linux.
Both the extracted jdk folders in windows and linux are not the same, the difference is the extracted contents in windows will have all exe file, where as in linux it will be binary files.
That is javac in windows will be javac.exe and in linux it will be javac.bin
Now to set the path proceed as below
rosarioarun@ros-lap:~$ PATH=$PATH:/home/rosarioarun/jdk1.5.0_16/bin/
this is just a single line script to set the path, you can view the PATH variable using echo
rosarioarun@ros-lap:~$ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/home/rosarioarun/jdk1.5.0_16/bin/
Now you can compile the java programs using javac and run them using java commands.
The most used IM client in Linux is Pidgin. But the problem with Pidgin is that doesnt support voice chat. Also the gtalk software is not available for linux. Its only available as exe that is supported only by Windows.
When i was chatting with my friend using pidgin and he was in gtalk, he called me for voice chat. But i couldnt. Googling this problem i found a solution. the solution is Empathy. Use Synaptic package manager, go to Settings->Repositories->Third Party Software and then click Add and add the following line
deb http://ppa.launchpad.net/telepathy/ubuntu hardy main
Then, Install the following packages using Synaptic Pagakage manager.
- Empathy
- telepathy-gabble
- telepathy-mission-control
- telepathy-stream-engine
After successful installation, open the Empathy application and use the menu, Edit->Accouts to add your gtalk account. Enjoy using voice chat with your favorite gtalk account using Empathy in Linux.
Empathy With my Gtalk account
I had a chance of spending a day with 10 persons from Tanzania. An unforgettable day 25th July 2008. Had a wonderful time spending with them and taking them all around my native Kanyakumari.A day was not enough with them.
A special day
And In that team, Father Maina, Eric, And Frank were more interested in the way i was using Ubuntu(Hardy). Frank was more interested and wanted to intall Hardy in his New laptop(HP), which was preloaded with Vista. So i used a Hardy dvd, and booted the laptop in Live cd mode and used gparted(Gnome Partition Editor) to partion the hard drive into four partions…
He had a thought that its not possible to install other OS, with out complete formatting and partitioning the hard drive. (As there was no partition at all and Only C drive and it has Vista). He was worried that his Vista and Recovery part to go off… I took of all his worries about hin his lap… I partitioned, Installed Ubuntu with no loss in Vista or recovery part… Hardy Live CD is more power ful, also gparted is fantastic. Partion your new laptops with out loss of any data with Ubuntu Live CDs. Happy that i imported the Power of ubuntu and linux to few people.
Me accessing my DataOne broad band wireless in my hardy(ubuntu 8.04). For the post two year Iam using Dataone.. But I was not sure whether the wireless port in my modem was Input port or Output port. I tried connecting my Lap after purching my Lap. I didnt know exactly what mode to use in my admin setup page for accessing… I was randomly trying one after the other.. And got it at last.
My Interface Setup in my admin page is in PPoA/PPoE mode, with the username and pasword defined in the router setup page itself. And my Cute hardy scans for the Wireless Lan and connects automatically leaving me no work now a days. My Hardy is always cute, When my boot process is over Iam ready to surf my Net, provided my Dataone modem is ON.
Many laptops, that uses Intel board faces problems with Wlan. That is, most of the time when booted with Ubuntu 8.04 the Wlan will not be enabled and the WirelessLan switch in the laptops will not be of any use… More over the Wireless Lan leds will also be of no use. I faced the same problem and i happened to reboot my ubuntu severall times to get my wlan enabled.
I googled and had a chat in IRC and found it a bug with Ubuntu. Also found the solution as i was surfing. The solution to the above problem is making the WLAN led glow and making the WLAN switch work. For that install the package below using Synaptic or atp-get
linux-backports-modules-hardy
that is install like
~$ sudo apt-get install linux-backports-modules-hardy
Even if it doesnt work after this, install the Latest stable version of ndiswrapper from the link,
Iam right now using my Dataone connection, in my Lap via wlan as my modem is Wireless enabled. I never reboot now a day to enable my Wlan enabled in my Ubuntu.
When you reinstall your windows in a dual boot system having you windows and ubuntu. Probably you will get a thought that your ubuntu got removed from your hard drive, and you may reinstall you ubuntu also. Thats a waste of time… Your ubuntu will be safe in your Hard drive but the thing is the boot loader doesnt know there is Ubutu in the hard drive and its location. This is because
This is because, Windows in not more friendly. When you install the Windows it over writes other Boot loaders with its own. Also doesnot identify other Operating systems in the hard drive. Where are opend source boot loaders such as GRUB that come with most of the linus distros are more friendly and detects amost all operating systems.
So to get back your Ubuntu. Just install GRUB (Boot Loader) alone with the help of a Ubuntu cd or dvd, that will take few second than wasting you precious time. Also will give you back the same Ubuntu that you were using before and all softwares install as before….
To install GRUB alone follow the steps:
1. Boot your system with a Ubuntu Bootable Cd and Choose Live CD mode
2. After the Ubuntu boots in the Live-CD mode, press Alt-F2 and type gnome-terminal, and press Enter
3. Now follow the commands below
sudo grub
find /boot/grub/stage1
root (x,y)
setup (x)
quit
sudo shutdown “now” -r
The resulting “find” command will display something like (hd0,1). In this example, you would then type root (hd0,1) and then setup (hd0) in the above area. These numbers might be different; that’s why I included the “find” command. So that find command will locate the partition where linux wass installed previously. That is Ubuntu partitions located either in front or behind their Windows installation or on a completely separate internal/external hard
Mplayer is a good movie player that supports almost all video and audio codecs. Mplayer can be used to view the output of the webcam also can be used to take the snaps using the web cam in your laptop.
The following is the command to view the output of the webcam
$ mplayer tv:// -tv driver=v4l2:width=640:height=480:device=/dev/video0 -fps 30
and to take the snaps (to capture each frame) as a picture use the following command.
$ mplayer tv:// -tv driver=v4l2:width=640:height=480:device=/dev/video0 -fps 30 -vo jpeg tv://
where fps specifies the frame rate in both cases. and this will determine the number of snaps taken per second.
This probably works with other destros also.. check it out….
To save the output as a vedio file you can use the mencoder command.
Also you can use XawTv package included by default in ubuntu for the above purpose.
Do write ur comments….
