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Login

You can use the Login tab of the Parameters pane to set parameters for the miscellaneous options of the login window.

Appearance:

You can change the background image and the logo of the login window.

Background: You can use the Select button to choose a replacement image for the background of the login window. By default, the application directs you to the folder containing the Desktop Pictures of OS X (/Library/Desktop Pictures/...). It is preferred to load an image the same as your screen size or a 256 x 256 PNG image (512 x 512 for a Retina screen) like the original one.

Formats accepted: BMP, GIF, JPEG, JPEG 2000, PNG, PSD, TGA, and TIFF.

You can use the Restore option to put the original background image in the login window.

Logo: You can use the Select button to choose a replacement logo for the login window. You must use an image of the same size (79 x 95 pixels by default, 160 x 190 for a Retina screen) or size proportional to the original image. The application directs you to the Pictures folder of your home folder.

You can also choose to hide the logo from appearing in the login window.

You can use the Restore option to put the original logo in the login window.

Message:

Show message in the login window: You can use this option to display text in the login window. Select this option, then type the text in the field located below, and click the Apply button. Warning: This function doesn't accept certain special characters.

Misc. options:

Turn off the Restart, Shut Down, and Log Out menu items in the Apple menu: You can turn the Kiosk mode on or off using this option. Turning on this mode disables the Restart, Shut Down, and Log Out commands in the Apple menu. Any modification of the Kiosk mode requires the restart of your computer. Warning: Use this option only if administrator accounts appear in the list of users.

Hide the Sleep, Restart, and Shut Down commands in the login window: This option hides the Sleep, Restart, and Shut Down buttons located at the bottom of the login window.

Show in the list of users: You can use this option to show or hide the users (Administrator, Local, and Network) in the list of users in the login window.

Warning:
- If the Kiosk mode is turned on, don't deselect the administrator accounts in the list of the users.
- Turning off the local users in the list of users will display only the Guest account in the login window. To redisplay the local users, restart in single-user mode (Command-S at startup) and type the three following commands (QWERTY keyboard) :

/sbin/mount -uw /
rm /Library/Preferences/com.apple.loginwindow.plist
reboot

Startup Mode:

You can use this menu to set the startup mode of the computer.

Normal: Normal mode displays a dark gray Apple logo (the apple) on a light gray background, shows status messages above an Aqua progress indicator (a moving bar) while various initializations are carried out, and then displays the desktop in the Finder.

Safe mode: Safe mode is the state OS X is in after a Safe Boot. Starting up into Safe mode forces a directory check of the startup volume, loads only required kernel extensions, runs only Apple–installed startup items, disables all fonts other than those installed by the system, moves all font caches to the Trash, and disables any Login Items. Safe mode can be useful for troubleshooting. However, certain OS X features do not work when you are started up in Safe mode. For example, you can't use DVD Player, capture video in iMovie, use an AirPort card, use audio input or output devices, or use an internal or external USB modem.

Verbose: Verbose mode displays a black screen with white text that shows details of the startup process line by line, then displays the desktop in the Finder.

Single-user: Single-user mode displays a black screen with white text that shows details of the startup process line by line, then displays a command prompt; to return to Normal mode, type the command nvram boot-args = "" . If you don't like Terminal, forget the single-user mode.

Locking the screen at startup:

Lock screen of automatically logged in user at startup: If you have selected automatic login (System Preferences > Users & Groups), turn on this option to lock the screen when the computer starts.

Startup sound:

Startup sound: You can use this option to turn on or turn off the sound played at startup of the computer.

Click the Restore Defaults button to cancel all modifications caused by OnyX or by any other application. After execution, all parameters will be reset and display as they did when the system and the applications were first installed.