bobg.hahc@gmail.com wrote: > On Tuesday, July 26, 2011 10:30:02 PM UTC-5, jiang lei wrote: > > is there any difference between "/usr/bin/X" and "/usr/bin/Xorg"? > > On my >debian box, /usr/bin/X is not symlink to /usr/bin/Xorg, and > > i can start X server >with /usr/bin/X but fail with /usr/bin/Xorg? > > i google it but find nothing, could >any one here help me? thanks > > in advance. Wow. That is an aging message. > wow - i'm disappointed no one's ever answered this... i too would like to know: > root:~/# ls -o /usr/bin/X* > -rwsr-sr-x 1 root 9232 Dec 16 2011 /usr/bin/X > -rwxr-xr-x 1 root 1889472 Oct 29 2011 /usr/bin/Xorg > > both files are ELF executables, and they are CLEARLY different. > so what exactly IS the difference btn them??? In the beginning was MIT's The X Window System. The main server is 'X' as in /usr/bin/X. This was rewritten for the 80386 as Xfree86 with the same names. Later through much controversy the Xfree86 license was changed to be restrictive in 2009. This license change caused a forking of the previouly available free version of the code over to a new code base with X.org. The X.org version implements the new X.org server as /usr/bin/Xorg but maintains /usr/bin/X as a compatibility layer so as not to break traditional legacy programs which call the server by the previous name. So at this time /usr/bin/X is a thin wrapper for compatibility. I believe it simply turns around can calls /usr/bin/Xorg but perhaps with a very small amount of option processing if any in between. I don't know. I haven't looked at the source code. But the "X -help" is identical to the "Xorg -help" output. References: http://en.wikipedia.org/wiki/X_Window_System http://en.wikipedia.org/wiki/Xfree86 http://en.wikipedia.org/wiki/X.Org_Server Bob
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