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- Aug 14, 2012
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I am on Mountain Lion and was annoyed at how when I close my computer lid while on a full screen app and then wake the computer, the background for the password prompt is not my own choice of background but the default galaxy one.
To fix this, I modified the alias 'DefaultDesktop.jpg' in the CoreServices folder so that it referred to another image file in the same Desktop Pictures folder. To my dismay, when I tested the password prompt, I was greeted with a blank background.
I figured that the reason this is happening is because the DefaultDesktop.jpg alias does not have 'system' read/write permission, instead it has my own account read/write permission because I modified it, and 'system' is not included in the list of users so I can't edit the permissions and I can't add 'system' to the list of users either.
One way that I know will work is to go into the file permissions for the CoreServices folder, which already has system read/write permission and then use 'Apply to enclosed items' - but that will apply those permissions to every single file in the folder so I'm worried that this will mess up some other file. Is this a good idea or is there some other way that will change the permissions of that file only (I'm assuming it involves using the terminal)?
Thank you and please do not reply by saying 'you shouldn't mess around with system permissions, you will wreck your computer'. I know what I want to do and I'll be left with a blank password prompt background forever if I don't fix this.
To fix this, I modified the alias 'DefaultDesktop.jpg' in the CoreServices folder so that it referred to another image file in the same Desktop Pictures folder. To my dismay, when I tested the password prompt, I was greeted with a blank background.
I figured that the reason this is happening is because the DefaultDesktop.jpg alias does not have 'system' read/write permission, instead it has my own account read/write permission because I modified it, and 'system' is not included in the list of users so I can't edit the permissions and I can't add 'system' to the list of users either.
One way that I know will work is to go into the file permissions for the CoreServices folder, which already has system read/write permission and then use 'Apply to enclosed items' - but that will apply those permissions to every single file in the folder so I'm worried that this will mess up some other file. Is this a good idea or is there some other way that will change the permissions of that file only (I'm assuming it involves using the terminal)?
Thank you and please do not reply by saying 'you shouldn't mess around with system permissions, you will wreck your computer'. I know what I want to do and I'll be left with a blank password prompt background forever if I don't fix this.