Update VMware Tools for UNL to Stop Crashing Labs - "Error 20003"

When I was working with some larger typologies in UNL work space, labs got crashed many times because of this new method of adding links. Some times when nodes/links are added and deleted, it happened after auto refresh on webpage and shows "Error 20003" and you are done. If you have not backed up your lab with configurations you will not recover your lab again.

To stop this happening, VMware tools should be updated. I am running UNL on VMware workstation.

Go to VMware and go to VM > Install VMware Tools

SSH to the UNL machine.

Run these following commands:

Run this command to create a directory to mount the CD-ROM
sudo mkdir /mnt/cdrom

Run this command to mount the CD-ROM
sudo mount /dev/cdrom /mnt/cdrom

Run this command to find the exact name
ls /mnt/cdrom

It is 10.0.10-4301679 for me.

Run this command to extract the contents of the VMware Tools bundle
tar xzvf /mnt/cdrom/VMwareTools-x.x.x-xxxx.tar.gz -C /tmp/

x.x.x-xxxx is the version discovered in the previous step.

Run this command to change directories into the VMware Tools distribution
cd /tmp/vmware-tools-distrib/

Run this command to install VMware Tools
sudo ./vmware-install.pl -d

Now reboot the virtual machine
sudo reboot