[esmandau]

Open up the Terminal in Applications » Utilities and type in the following:
cd /System/Library/CoreServices
sudo mv DefaultDesktop.jpg DefaultDesktop_org.jpg
sudo cp /Path/to/picture/you/want/to/use/image.jpg DefaultDesktop.jpg

After the first “sudo” command, you will be asked for your password. For the last line, instead of manually typing in the path of the image you want to use, you can just drag it into the Terminal. If you were to browse to the CoreServices directory in Finder after you did this, you’d see something like this showing the new image and the renamed old one.

Here is some pic's


Any Doubt?
Post here questions or Thanks ! ! ! whatever you like most

[luqven]

that's a great find! also, could you put a link to that wallpaper? thanks. Another cool wallpaper is the time machine one, but it gets old fast

[esmandau]

you should just enter here InterfaceLIFT: 1440x900 Wallpaper sorted by Date

Find it there

[sync]

i'm having trouble, when i try i get : Last login: Thu Sep 18 13:34:37 on console
Macintosh-3:~ noah$ cd /System/Library/CoreServices
Macintosh-3:CoreServices noah$ sudo mv DefaultDesktop.jpg DefaultDesktop_org.jpgPassword:
mv: DefaultDesktop.jpg: No such file or directory
Macintosh-3:CoreServices noah$ /Users/noah/Desktop/gomedia-skull1680x1050.jpg
-bash: /Users/noah/Desktop/gomedia-skull1680x1050.jpg: Permission denied
Macintosh-3:CoreServices noah$

Pleaz help