Change the Login Background Wallpaper on your Mac
10.6, Customize, How to, Mac OS X, Tips & Tricks - December 19th, 2009 - 8 Comments
If you want to change the wallpaper that sits in the background of your Mac’s login screen, from the Finder hit Command+Shift+G to open the ‘Go to Folder’ screen. Type /System/Library/CoreServices/ and click ‘Go’:
Next, find the image file called ‘DefaultDesktop.jpg’ – you should save a copy of this somewhere safe, or rename it to DefaultDesktop-backup.jpg or something of the sort, so that you can revert your changes.
After that file is safely backed up, add the new wallpaper image you want to use as the login background, naming it exactly the same as the previous file: DefaultDesktop.jpg
That’s all there is to it! Reboot and your login wallpaper is now whatever you set it to. This works to change the login background in Mac OS X Snow Leopard 10.6
Optionally you could update the right key
http://secrets.blacktree.com/edit?id=2379
Or use this little app: http://www.apple.com/downloads/macosx/icons_screensavers/desktop2login.html
does anyone else think it’s weird that Apple doesn’t allow this as a customization option in their Appearance settings? They’re so into personalization, seems out of place to not allow the wallpaper to change on boot.
Saw this on reddit and posting here:::::
sudo defaults write /Library/Preferences/com.apple.loginwindow DesktopPicture /Path/To/New/Image.png
Can do the same… BUT I do not know about Snow Leopard?
Under Leopard I’ve used Loginox with ease and reliability.
http://www.macupdate.com/info.php/id/27126/loginox
I don’t think it’s SnowLeopard compatible, however.
Loginox works great under Snow Leopard.
http://www.loginox.branox.com/
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