Oracle DBA – A lifelong learning experience

Running two oracle installations from the same terminal

Posted by John Hallas on February 23, 2015

Two posts from me on the same day. The other one about Datapatch is about a brand new utility in 12c and is probably new to most people. This post caused mixed reactions when I mentioned it at work last week. Some people laughed at my naivety in not knowing about it, others took the same view as me and were interested to hear about it as it may prove useful one day.

A colleague had a double installation of new Oracle binaries on primary and standby servers and I suggested he get someone else to run one in parallel as he could not run two installers at the same time. He came back later on to show how it could be done and prove me wrong.

When starting up Xming using the Launch script the first window that comes up has a Display number of 0 at the bottom



That maps to the :0 in the DISPLAY command you export

export DISPLAY=

 So if you want a second installer to run you change the display number to 1 and use

export DISPLAY=

And voila you can have 2 xming installer sessions running in parallel

The last 0 (.0) is used to have multiple screens within the same display – something that is not used very frequently these days.

So if you think I have wasted your time feel free to ignore this post and if you have found it useful I would happy to get comments saying so.


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