Change boot-up splash screen on Ubuntu

To change the boot-up splash on Ubuntu(if u have already installed kubuntu or xubuntu inside).

Type this command:

sudo apt-get install startupmanager.

Then launch from:

System>Administration>StartUp Manager>select apperance

Gudluck!

Migration Ubuntu to Kubuntu

Already install ubuntu and want to migrate to kubuntu?

This can be solve!

In ubuntu, type command:

apt-get install kubuntu-desktop.

Then boot up and logout/login menu, click option and you will see words “session” before you enter username and password.

In another words you can apply either Ubuntu(GNOME) or Kubuntu(KDE) by switching the session. Sound Interesting?yess~~

Another method:

I HAVEN’T tried this method below but you can try it.

*Notes: I got this from internet.

To prevent KDE apps from showing up in Gnome menus and vice-versa, do the following before you install kubuntu-desktop :

(you can also create a small cleaner.sh script witht he following and run it as root)
$ sudo -s -H
#cd /usr/share/applications
#for i in *.desktop; do \
# if ! grep -q ^OnlyShowIn= $i; then \
# echo ‘OnlyShowIn=GNOME;’ >> $i \
# fi
#done

Now, after installing kubuntu-desktop do:

$cd /usr/share/applications/kde
$sudo -s -H
#for i in *.desktop; do
# if ! grep -q ^OnlyShowIn= $i; then
# echo ‘OnlyShowIn=KDE;’ >> $i
# fi
#done

What we did above was to tell the Gnome apps to only show in the gnome menus, and later, the KDE apps to only show in KDE menus.

Thank You

Unable to get exclusive lock

Showing display:

This message is telling you that there is a lock file preventing your package manager from getting exclusive access. It occurs when your power goes out, etc, before they are completed, the lock file remains and the next manager believes another manager is already running.

So it’s probably that some update process happening behind, somthing that’s unfinished.

Try the following command:

apt-get clean

apt-get -f update

It will clear the cache and terminate any unfinished business and restart again.

If still getting same error, use command:

ps -ax

It will show list of current running process.

To terminate running process use command:

sudo kill <process number>

Hopefully this method will work.Gudluck!

Getting familiar with terminal

Priviledges

sudo -s	open a root shell
passwd	change your password
ls	to display the file

Network

ifconfig	show network information
iwconfig	show wireless information
sudo iwlist scan	scan for wireless networks

Special Packages

ubuntu-desktop	standard Ubuntu environment
kubuntu-desktop	KDE desktop
xubuntu-desktop	XFCE desktop

Package Management

apt-get update	refresh available updates
apt-get upgrade	upgrade all packages
apt-get dist-upgrade	upgrade with package replacement,upgrade Ubuntu version
apt-get install pkg	install pkg

apt-get purge pkg	uninstall pkg
apt-get autoremove	remove obsolete packages
apt-get -f install	try to fix broken packages
dpkg – -configure -a	try to fix broken packages
dpkg -i pkg.deb	install file pkg.deb

Application Names

nautilus	file manager (GNOME)
dolphin	file manager (KDE)
konqueror	web browser (KDE)

Ubuntu Guide

What is Ubuntu

Ubuntu is a version of the Linux operating system that is perfect for laptops, desktops and servers. Ubuntu contain all the application you’ll ever need and always will be free of charge. You do not pay any licensing fees. You can download, use and share Ubuntu with your friends, family, school or business for absolutely nothing.

Installing Ubuntu within Windows

Wubi is windows software that installs ubuntu within a series of virtual hard disk files contained in the windows filesystem. It then configure boot-time menu so you can choose between booting into ubuntu or windows. If you choose to boot into ubuntu, a clever trick makes the virtual hard disk files appear to be real disks.

Key Combination

Alt+F4	Quit application
F1	Context-sensitive help
F10	Open a program’s File menu
Alt+F1	Open main menu
Alt+F2	Open “Run Application”
Alt+Tab	Switch between application
Windows+E	Switch between virtual desktops
Alt-F9	Minimize window
Alt+F10	Maximize window