Since 10 November our faculty has a new website! The old website will still be available at for now. Something is broken? Please report it to or use our webform.

translated by Google


How do I sign out?

Mac OS X is voted exactly as it is in other operating systems. Just know where the menu is hidden. Note that programs do not have a control menu in the same window as you may have used from Microsoft Windows or KDE or Gnome but are separate and located in the bar at the top of the screen. In addition to classic items such as File , Edit, or Help , the menu starts with Apple's logo, which is the next menu item in the bottom right of the search for "Log out".

I can not select a CD / DVD from my drive!

The best way to do this is to try these steps:

  1. Press the key to remove the media. Located in the upper right corner of the keyboard.
  2. Try dragging the media icon on the desktop to the Trash. The basket is located on the bar at the bottom of the screen.
  3. Write command at the command prompt: hdiutil detach / dev / disk1
  4. Read the FAQ on the question "Where to find help?"

How to run a text terminal?

The text term can be run as follows:

  1. I'll open Finder (the first smiley icon on the bottom bar).
  2. I click on Applications .
  3. Find Utilities .
  4. Click Terminal . I will be able to see the jump of the terminal icon - which means the application is running.

The new terminal window is created by clicking File -> New Shell . The menu is located at the top of the screen.

XCode Error "The operation could not be competed." (Cocoa error - 102.) "

You may encounter this error when trying to run your application over Xcode in the iOS Simulator. This is caused by the fact that iOS Simulator does not support the running of applications that are in a network-attached location via NFS. The home directories where the applications are placed are currently connected via NFS.

The solution is to create a local directory where the application is stored and redirect the iOS Simulator to it. This can be accomplished by the following commands running in the terminal:

mkdir /tmp/$USER
rm -rf ~/Library/Application\ Support
ln -s /tmp/$USER ~/Library/Application\ Support

If you log on to another machine, you need to step with mkdir do it again because it is a local directory on that machine. When working is done, delete this directory ( rm -rf /tmp/$USER ).

Where to look for help?