I installed the RedHat 7.0 system on one of our servers with the
Web-server setup. It seems that since the web server setup doesn't
include the X environment, starting up emacs gives the error message
Opening input file: no such file or directory,
emacs still starts up, but the filename you specify on the command line is
not opened and must be (re-)opened by hand, which is anoying.
This was solved in an errata for Red Hat Linux 7.
*** This bug has been marked as a duplicate of 18548 ***