By Huy Tran on March 9, 2009
k3b cannot deal with mp3 files by default in Ubuntu Edgy Eft.
If you need to produce an audio cd by adding mp3 files with k3b, you’ll need to install the following package:
sudo apt-get install libk3b2-mp3
and you are done!!
Posted in Linux, Open Source, Tips - Tricks, Ubuntu | Tagged k3b, mp3, Ubuntu
By Huy Tran on February 17, 2009
1) Go to Synaptic and install
libswt-cairo-gtk-3.4-jni
libswt-gnome-gtk-3.4-jni
libswt-gtk-3.4-java
libswt-gtk-3.4-jni
libswt-mozilla-gtk-3.4-jni
2) cd /usr/lib/jni
cp the files:
libswt-atk-gtk-3448.so
libswt-cairo-gtk-3448.so
libswt-gtk-3448.so
libswt-pi-gtk-3448.so
libswt-awt-gtk-3448.so
libswt-gnome-gtk-3448.so
libswt-mozilla-gtk-3448.so
to the areca/lib folder with names in order of appearance:
libswt-atk-gtk-3232.so
libswt-cairo-gtk-3232.so
libswt-gtk-3232.so
libswt-pi-gtk-3232.so
libswt-awt-gtk-3232.so
libswt-gnome-gtk-3232.so
libswt-mozilla-gtk-3232.so
overwriting the original ones 
.
3) the files:
org.eclipse.swt.gtk.linux.x86_3.2.0.v3232m.jar
org.eclipse.jface_3.2.0.I20060605-1400.jar
come from an eclipse installation actually, so if you don’t have eclipse,
download it and:
cd eclipse/plugins
and cp the org.eclipse.swt.gtk.linux.x86_64_3.4.1.v3449c.jar
into areca/lib org.eclipse.swt.gtk.linux.x86_3.2.0.v3232m.jar
and cp org.eclipse.jface_3.4.1.M20080827-2000.jar to areca/lib
org.eclipse.jface_3.2.0.I20060605-1400.jar
overwriting the original ones.
Now, the file libarecafs.so surprise, surprise is a 32 bit one, so I compiled the 64bit one.
With the 32bit one, you’ll get a couple of warnings:
09-01-22 20:44 – WARNING – com.myJava.file.metadata.posix.jni.JNIMetaDataAccessor cannot be used on this system. Got the following error : “java.lang.UnsatisfiedLinkError : /home/jordilin/areca/lib/libarecafs.so: /home/jordilin/areca/lib/libarecafs.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)”
09-01-22 20:44 – WARNING – [com.myJava.file.metadata.posix.jni.JNIMetaDataAccessor] not validated. The default metadata accessor will be used instead.
4) ./areca.sh
5) done
Note. I tested this using 6.2 pre-release, but using 6.1 should be the same.
Posted in Linux, Open Source, Tips - Tricks, Ubuntu | Tagged areca, backup, java, Ubuntu
By Huy Tran on September 27, 2008
Install Flash Player For Ubuntu Linux
Type the following command to install flash player:
$ sudo apt-get install flashplugin-nonfree
Now flash player should be working. Visit youtube or any other site to view flash content.
Posted in Firefox, Linux, Open Source, Tips - Tricks, Ubuntu | Tagged flash player, install
By Huy Tran on April 20, 2008
First, I want to add a user. So how to do it?
+ To add user:
sudo adduser <username>
to add password for your user
sudo passwd <username>
+ How can i switch from one user to another one? In this example, i want to switch from one user to another one.
su <username>
and type in your password to login
after that, you will be at a ‘$’ prompt. type:
bash
to get to a normal prompt.
+ How can I delete a user?
sudo userdel <username>
Posted in Linux, Open Source, Tips - Tricks, Ubuntu | Tagged add, command, delete, sudo, switch, Ubuntu, user
By Huy Tran on February 9, 2008
So how do you shutdown or reboot Ubuntu Linux from a terminal or a shell prompt? If GUI is working you can always click on a Quit button. If GUI is not working or if you are working remotely over ssh type the following command:
To shutdown / poweroff Ubuntu Linux
Type the command:
sudo halt
OR
sudo shutdown -h now
OR
sudo shutdown -r now
OR
sudo init 6
To reboot Ubuntu Linux
Type the command:
sudo reboot
More information can be found about these two commands by typing following commands (man page):
man reboot
man shutdown
Posted in Linux, Open Source, Software, Ubuntu | Tagged command, Linux, reboot, shell, shutdown, terminal, Ubuntu