[daip] RE: in addition to the previous e-mail
Eric Greisen
egreisen at nrao.edu
Tue Jul 20 13:38:50 EDT 2004
DePree, Chris writes:
> Specifically the message is:
>
> xterm Xt error: Can't open display: kepler:0
>
> But the only change was moving the system to Emory from
> ASC and telling it to get an IP address from dhcp.
>
I was about to answer your last e-mail saying to add services to the
system services etc. But that is not the problem above. What you
have is a lack of system loopback - your computer cannot talk to
itself as if it were an Internet entity. It is a great mystery to me
why something like 50% of all systems have this problem indicating to
me a failure in the system itself or its installation.
You did not tell me the version of aips you are running or whether you
do MNJs etc. I have a new version of START_TVSERVERS. I will attach
it below but you will have to edit the line that defines AIPS_ROOT= to
whatever your aips root is when you put it in the AIPS_ROOT area.
If you do MNJs on 31DEC04 you need to
cd $AIPS_ROOT
source LOGIN.CSH (or . LOGIN.SH)
$CDTST
cd $TST/$ARCH/UPDATE
ln -s $UPDUNIX/UPDUPDATE UPDUPDATE
to get some new things in the MNJ script (if the file is not there
already).
Using dhcp means that your computer gets a new name every time you
plug in - or it can mean that. This can cause trouble - we have the
concept of LAPTOP now - LOGIN.SH and LOGON.CSH define this logical in
31DEC04 and then the name is forced to localhost to avoid the changing
name syndromes.
Perhaps this will help:
Eric Greisen
#!/bin/sh
#-----------------------------------------------------------------------
#; Copyright (C) 1995, 1997-1998, 2002-2004
#; Associated Universities, Inc. Washington DC, USA.
#;
#; This program is free software; you can redistribute it and/or
#; modify it under the terms of the GNU General Public License as
#; published by the Free Software Foundation; either version 2 of
#; the License, or (at your option) any later version.
#;
#; This program is distributed in the hope that it will be useful,
#; but WITHOUT ANY WARRANTY; without even the implied warranty of
#; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#; GNU General Public License for more details.
#;
#; You should have received a copy of the GNU General Public
#; License along with this program; if not, write to the Free
#; Software Foundation, Inc., 675 Massachusetts Ave, Cambridge,
#; MA 02139, USA.
#;
#; Correspondence concerning AIPS should be addressed as follows:
#; Internet email: aipsmail at nrao.edu.
#; Postal address: AIPS Project Office
#; National Radio Astronomy Observatory
#; 520 Edgemont Road
#; Charlottesville, VA 22903-2475 USA
#-----------------------------------------------------------------------
# Usage: START_TVSERVERS TVOPT [VERSION] [UNIX|INET]
#-----------------------------------------------------------------------
# START_TVSERVERS starts the AIPS server processes on a workstation. It
# takes care of defining the essential AIPS logicals (including TVDEV,
# etc) via HOSTS.SH, TVDEVS.SH, and AIPSPATH.SH. There may be site or
# host specific overrides in AIPSASSN.SH, so it is called too.
#
# This script will either be called via a remote shell or locally.
#
# On Sun4 systems, it may be necessary to edit the first part of this
# file if OpenWindows is not in use or in a nonstandard place. For
# generic X11 installations, just set LD_LIBRARY_PATH to the appropriate
# X11 library area.
#
# This file must have mode +x - done by install.pl usually.
#-----------------------------------------------------------------------
# Set the AIPS root directory.
AIPS_ROOT=/DEFINE_ME
# Who am I? DON'T CHANGE!!!
. $AIPS_ROOT/HOSTS.SH
[ "$ARCH" = "" ] && echo "START_TVSERVERS: ARCH not defined" && exit 1
# Change these if needed
case $ARCH in
S[OU]L|SUN*)
if [ "$OPENWINHOME" = "" ] ; then
for i in /usr/Openwin /usr/openwin /usr/openwin3 ; do
[ -d $i ] && OPENWINHOME=$i
done
export OPENWINHOME
if [ "$OPENWINHOME" = "" ] ; then
echo "START_TVSERVERS: Help! Can't find OPENWINHOME"
fi
fi
# This may cause problems; if so,
# just comment the whole thing out
if [ "$LD_LIBRARY_PATH" = "" ] ; then
LD_LIBRARY_PATH=$OPENWINHOME/lib:/usr/lib
export LD_LIBRARY_PATH
fi
;;
esac
#
# --------------- do not change anything below this line ---------------
#
export AIPS_ROOT
# Shortcuts for output text.
ei4 () {
echo "START_TVSERVERS: $*"
}
# Posix: echo behaves differently
# Following trick from Martin
# Shepherd (mcs at astro.caltech.edu)
# and Will Deich.
ni4 () {
if [ "`echo -n YES`" = "YES" ] ; then
echo -n "START_TVSERVERS: $*"
else
echo "START_TVSERVERS: $*\c"
fi
}
spc() {
echo " "
}
if [ ! -d $AIPS_ROOT ] ; then
ei4 "AIPS_ROOT is not a directory; cannot start TV servers."
exit 2
fi
# Arg 1 is TVDISP:TVHOST
TVOPT=$1
if [ "$TVOPT" = "" ] ; then
ei4 "TVOPT not defined, cannot start anything"
exit 2
fi
# Arg 2 is version or socket type;
# if version, arg 3 is Socket type
ARG2=`echo $2 | tr '[a-z]' '[A-Z]'`
SOCKTYPE=INET
case $ARG2 in
OLD|NEW|TST) VERSION=$ARG2; export VERSION;;
INET|UNIX) SOCKTYPE=$ARG2;;
*) VERSION="";;
esac
ARG3=`echo $3 | tr '[a-z]' '[A-Z]'`
case $ARG3 in
INET|UNIX) SOCKTYPE=$ARG3;;
esac
# Set the PATH, SYSUNIX, etc.
# This is sensitive to VERSION.
. $AIPS_ROOT/AIPSPATH.SH
# and THEN define TV variables,
# but only if needed.
if [ "$AIPSTVS" = "" ] ; then
if [ -f $AIPS_ROOT/TVDEVS.SH ] ; then
. $AIPS_ROOT/TVDEVS.SH
else
. $SYSUNIX/TVDEVS.SH
fi
fi
# Get local overrides if any
. $AIPS_ROOT/AIPSASSN.SH
# Use XAS by default.
if [ "$TVALT" = "TVALT00" ] ; then
TVALT=TVALT03; export TVALT
fi
# Start the TV servers.
case $TVALT in
TVALT01) ei4 "Sunview server has been deprecated"
# SSSERVERS
;;
*)
# X11 of some sort, start XAS.
if [ "$DISPLAY" = "" ] ; then
DISPLAY="${TVDISP}:0"
export DISPLAY
elif [ "$TVDISP" = "$TVHOST" ] ; then
if [ $SOCKTYPE = INET ] ; then
DISPLAY="${TVDISP}:0"
export DISPLAY
fi
fi
if [ "$TVDISP" = "$TVHOST" ] ; then
xxx="${TVDISP}:0"
if [ "$DISPLAY" = "$xxx" ] ; then
hhh=`echo $HOST | tr '[A-Z]' '[a-z]'`
if [ "$hhh" = "$TVDISP" ] ; then
DISPLAY=":0"
export DISPLAY
fi
fi
fi
if [ $SOCKTYPE = INET ] ; then
XASERVERS
else
UNIXSERVERS
fi
;;
esac
# End of START_TVSERVERS
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