How To Change GRUB2 Background Image (Splash Image) Under Ubuntu 12.04/11.10

Start the Ubuntu terminal and install first the grub2-splashimages package with this command:

sudo apt-get install grub2-splashimages

GRUB spalsh images are stored in the /usr/share/images/grub folder, you can access it with this command:

sudo nautilus /usr/share/images/grub

If you want to use a custom image, make sure it is in the TGA format, then place it in that folder. After deciding which image to use as splash screen for the GRUB2 boot loader, edit now the /etc/default/grub file with this command:

sudo gedit /etc/default/grub

At the end of the file, add this line:

GRUB_BACKGROUND=/usr/share/images/grub/YOUR-IMAGE.tga

Replace YOUR-IMAGE.tga with your custom image name.

When you finish, press CTRL+Q and save your file. Run now this command:

sudo update-grub

Restart now your computer to see if changes are successful (hold down the SHIFT key to bring up the GRUB boot screen while rebooting).

mengubah ubuntu 12.04 kembali ke classic desktop

kalau default desktop ubuntu 12.04 (unity desktop) membuat anda galau, anda dapat merubah kembali tampilannya ke desktop classic.
kalau pada ubuntu unity sebelumnya tinggal melakukan log out lalu memilih classic gnome sebagai mode desktop pada log in selanjutnya, pada ubuntu 12.04 kita harus melakukan sedikit download...

untuk lebih mudah bukalah console command/ terminal ubuntu, lalu ketik :

sudo apt-get update (enter) <- mengupdate daftar apps yg tersedia di server
masukkan password admin anda (enter)

sudo apt-get install gnome-panel (enter)
masukkan password admin anda (enter)

atau bisa juga dengan perintah sbb:

sudo apt-get install gnome-session-fallback (enter)
masukkan password admin (enter)

bila sudah selesai anda bisa melakukan log out dan log in kembali dengan memilih "Gnome classic"