Now you need to make sure the root user has a DISPLAY variable set, as well as add the astro-it’s xauth value from the xauth list command above which astro-it had as its. Change to the root user (you will not need to change directories once you start this process, stay in root's home directory:. It should remain on your screen as you execute the steps below.) (You will probably want to wait to copy it until you need it. Xauth list This command should output something similar to:į.edu/unix:10 MIT-MAGIC-COOKIE-1 6938d35d8f0eeabe93c07a2b84bce833 If there are multiple lines, copy the one that matches the DISPLAY value. Xauthority values that astro-it has for the X Window sharing: Ssh -XY Get the DISPLAY variable value: echo $DISPLAY This command should output something similar to: localhost:10 Connect to the machine you are going to install IDL on, making sure to use the -X or -XY option to enable X Window sharing:.If you are off-campus, be sure you are connected to the U-M VPN before starting.If you are installing directly on the machine, you can skip steps 2-9, and do the installation by logging in as root on a graphical console or using the command sudo. Please note:This article assumes you are logging in remotely. Install IDL for the first time, or update an existing installation.
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