It's currently not possible to set a special look to the login screen as it was in earlier releases of Ubuntu. But you can change all the settings you know from your own "Appearance" dialog (except from those in the "Visual Effects" tab included in releases up to Ubuntu 10.10).
These include:
|
- Copy "/usr/share/applications/gnome-appearance-properties.desktop" into "/usr/share/gdm/autostart/LoginWindow":
sudo cp /usr/share/applications/gnome-appearance-properties.desktop /usr/share/gdm/autostart/LoginWindow - Log out.
- Change the settings in the upcoming "Appearance" dialog. Make sure to re-select "LoginIcons" in the "Customize" dialog under "Themes".
- Log back in.
- Remove the file again:
sudo unlink /usr/share/gdm/autostart/LoginWindow/gnome-appearance-properties.desktop
http://www.tuxgarage.com/2011/08/changing-desktop-login-lock-backgrounds.html
To change the boot splash, just go to gnome-look.org, choose one of the few splash themes and follow its included instructions, my favorite is this one:
http://gnome-look.org/content/show.php/Ubuntu+sunrise+plymouth?content=129696
There is also a very popular one in the official repos, called "Solar", package "plymouth-theme-solar".
To apply the theme after its installation, run these commands and choose the theme in between:
sudo update-alternatives --config default.plymouth
sudo update-initramfs -u
sudo update-initramfs -u
How to do some simple modifications to the default boot splash is described here:
http://ubuntuforums.org/showthread.php?p=10561873#post10561873
http://www.khattam.info/howto-change-ubuntu-pinkpurple-plymouth-boot-screen-to-any-color-you-like-2010-11-09.html
If you have issues with the splash not being displayed correctly, or at all:
http://www.tuxgarage.com/2011/05/simplest-method-to-fix-ugly-plymouth.html
I just use the purple background image from this pack:
http://gnome-look.org/content/show.php/Grub2+Splash+Image+?content=125657
Guides to modify its look:
https://help.ubuntu.com/community/Grub2#GRUB_2_Splash_Images
http://members.iinet.net/~herman546/p20/GRUB2%20Splashimages.html