How to install X11 on OS X 10.4 (Tiger)

by Gand — last modified 2007-06-26 03:09 PM

X11 is needed to run some FOSS apps like , or


Running without X11 icon only bounch twice in the dock and then disappear.
Running without X11 you get this error:

You need administrator's rights to perform the X11 installation.

It is not installed by default, if you are running OS X 10.3 (Panther) dowload it from:

If you are running OS X 10.4 (Tiger) PPC or Intel you find it in your Install Disk.

  • Insert and open Mac OS X Install Disc 1.
  • Double clik on Optional Install.
  • After accepting license select Applications -> X11 and then click on Update button.
  • At the end of installation you will have X11 icon in /Applications/Utility folder.

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