![]() However I also think it is incredibly annoying, and Apple should allow local admins to change the System lock screen, but perhaps they have security or technical limitations that make it infeasible. Users should not automatically see other peoples lock screens either after a restart, they are private by default like your Documents, Downloads and Browser History. All UI customizations are at the User level, not System level. If you think about the way an OS is organized, this makes sense. It will also appear if you select Login Window from your profile pic on the upper right menu bar, or Switch User from your lock screen. Type csrutil disable and press enter, then reboot the mac to let this take effect. Go to the utility menu and choose Terminal. The System lock screen will appear when you restart a machine with MULTIPLE users because the OS has no idea which user is about to login. For my Mac book pro, hold command + R at power on until the display says loading options. It will also appear on restart if you only have ONE user profile. This screen appears when lock your computer. ![]() This article is about the User lock screen image. There is USER one that you can change, and a SYSTEM one that you cannot (easily). There are TWO lock screen images, which this article does not make clear. type: mv /Volumes/Macintosh\ HD/Big\ Sur\ Graphic.heic /Volumes/Macintosh\ HD/System/Library/Desktop\ Pictures/Big\ Sur\ Graphic.heic type: mv /Volumes/Macintosh\ HD/System/Library/Desktop\ Pictures/Big\ Sur\ Graphic.heic /Volumes/Macintosh\ HD/System/Library/Desktop\ Pictures/Big\ Sur\ ġ5. type: cd /Volumes/Macintosh\ HD/System/Library/Desktop\ Picturesġ4. copy your own grafic image in to Macintosh HDĪttention!!!! X=your Big Sur disk from 'diskutil list'ġ3. name your own grafic image as Big Sur Graphic.heicĨ. ![]() Now the Big Sur volume should be writableħ. > I tried Docker software updating with the button, but it's not working due to error below.Found the answer, apparently /System/Library/Desttop Pictures/Big Sur Graphi.heic is where the login screen background loads from.Īttention!!! X=your Big Sur disk from 'diskutil list' > How Can I do for it? I am worried that if I reinstall Docker, all of my data will be deleted.
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