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Change the Login Background Wallpaper on your Mac

December 19th, 2009 - 10.6, Customize, How to, Mac OS X, Tips & Tricks

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’:

change mac login background

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.

change mac login background wallpaper

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

Posted by: Manish Patel

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Comments:

Comments: 8

Comment from Mike Reys
Time: December 19, 2009, 5:12 am

Optionally you could update the right key
http://secrets.blacktree.com/edit?id=2379

Comment from inket
Time: December 19, 2009, 6:45 am

Or use this little app: http://www.apple.com/downloads/macosx/icons_screensavers/desktop2login.html

Comment from Navi
Time: December 20, 2009, 12:24 pm

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.

Comment from BACON
Time: December 20, 2009, 7:40 pm

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?

Comment from BartendingBear
Time: December 22, 2009, 10:34 am

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.

Comment from Hasel
Time: January 6, 2010, 11:16 am

Loginox works great under Snow Leopard.

http://www.loginox.branox.com/

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Time: January 10, 2010, 10:06 am

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Comment from Youtube
Time: January 26, 2010, 9:39 pm

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December 19th, 2009