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Steps to change the macOS Catalina login screen image: Reboot the system into recovery mode by holding command + r at startup. Open Terminal in recovery mode and enter the command “csrutil disabled”. Restart the system and log in as an administrator. Open Terminal and enter the command (see note …
TLDR: Copy the UUID of your User-ID. Go to "/Library/Caches/Desktop Pictures" Create a new folder with your UUID. now you should adjust the permissions for the folder so that macOS has write permissions there If you change your …
The Lock Screen should always be the same wallpaper set by the user as their desktop wallpaper The initial boot login, is only shown after a reboot or power on. This one I believe that can only be changed by modifying a file in once the …
How To Change The Lock Screen. Select or create an image and name it: Catalina.heic. Go to: Finder > Applications > Utilities > Disk Utility a) Select Macintosh HD b) Click on Info c) Read BSD device node (mine says disk1s1). Shutdown computer
Enter the following command: “sudo mount -wu /; killall Finder”. Navigate to Computer -> Macintosh HD -> System -> Library -> Desktop Pictures. Rename the Catalina.heic file to Catalinaold.heic or a different unique file name. Move the desired login screen image into the Desktop Pictures folder.