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      Operating Systems

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      Showing 1-10 of 32 results
      John Dunning

      MacOs Catalina Second Screen (update)

      • Posted by John Dunning
      • Categories MacOS, Operating Systems
      • Date October 9, 2019
      • Comments 0 comment
      October 9, 2019
      0

      Well, having resolved my second screen issues yesterday and worked for several hours without issue, I shut down my computer. This morning there’s no second screen again. A really simple solution So, here’s my really simple solution – hope it …

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      John Dunning

      MacOS Catalina – Second Screen Not Working

      • Posted by John Dunning
      • Categories MacOS, Operating Systems
      • Date October 8, 2019
      • Comments 0 comment
      October 8, 2019
      0

      I know I am not the only person to have problems with the usbc – HDMI screen suddenly stop working and I thought I would never fix it today, but I have finally done it so thought I would share …

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      John Dunning

      Mac OSX Switch Java Version

      • Posted by John Dunning
      • Categories Java, MacOS, Operating Systems, Programming Languages
      • Date October 18, 2017
      • Comments 0 comment
      October 18, 2017
      0

      /usr/libexec/java_home -V this will list all the Java Versions on the machine select the specific version using: export JAVA_HOME=`/usr/libexec/java_home -v 1.8.0_125` or just specify the major number export JAVA_HOME=`/usr/libexec/java_home -v 1.8` Now run java -version

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      John Dunning

      Recursively remove readonly attribute from Windows 7 files

      • Posted by John Dunning
      • Categories Operating Systems, Windows
      • Date June 4, 2015
      • Comments 0 comment
      June 4, 2015
      0
      attrib -r c:\folder\*.* /s
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      John Dunning

      Install Gnu Compilers on Mac OS

      • Posted by John Dunning
      • Categories MacOS, Operating Systems
      • Date May 6, 2015
      • Comments 0 comment
      May 6, 2015
      0

      Download latest version of XCode Open Terminal Session enter the following: xcode-select –install This will prompt you to install the command line developer tools click install Download the latest gnu compilers from here latest archive of the GNU compilers in terminal …

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      John Dunning

      OSX Yosemite to support Screen Sharing

      • Posted by John Dunning
      • Categories MacOS, Operating Systems
      • Date June 7, 2014
      • Comments 0 comment
      June 7, 2014
      0

      “Along with the ability to initiate FaceTime audio and video calls directly from a Messages app conversation, comes the ability to initiate screen sharing. Users will be able to either request a screen sharing session from another user, or initiate …

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      John Dunning

      Install OSX Yosemite on a second bootable partition

      • Posted by John Dunning
      • Categories MacOS, Operating Systems
      • Date June 4, 2014
      • Comments 0 comment
      June 4, 2014
      0

      For those registered developers who are looking to create a second bootable partition on their computer onto which to install OSX Yosemite – here are two earlier blogs that cover it. Create a Second Bootable OSX Partition http://skills421.wordpress.com/2013/10/29/create-a-second-bootable-osx-partition/ Create a Bootable …

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      John Dunning

      How to install iOS 8

      • Posted by John Dunning
      • Categories MacOS, Operating Systems
      • Date June 2, 2014
      • Comments 0 comment
      June 2, 2014
      0

      This post covers it all. http://ipod.about.com/od/howtos/ht/How-To-Install-An-Ios-Beta.htm

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      John Dunning

      Kill a Unix / OSX Process that is running on a port

      • Posted by John Dunning
      • Categories MacOS, Operating Systems
      • Date May 22, 2014
      • Comments 0 comment
      May 22, 2014
      0
      [code language="java"] [ $1 ] || { echo "Usage: $0 <portno>" exit 1 } lsof -P | grep ':'$1 lsof -P | grep ':'$1 | awk '{ print $2}' | xargs kill -9 [/code]
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      John Dunning

      Find Java Installation Directory on a Mac

      • Posted by John Dunning
      • Categories MacOS, Operating Systems, Programming Languages
      • Date March 23, 2014
      • Comments 0 comment
      March 23, 2014
      0

      Open a terminal Type: /usr/libexec/java_home -v 1.7

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