Mac OS X Maverick Upgrade


Just bought a Wacom Intuos Draw CTL-690, and want to install a note taking app with drawing feature in iMac running OSX Mavericks, found a good one – MS OneNote, but it only support OSX 10.10 or above. Being aware of the possibility that the latest OSX Sierra does not fully support old Adobe CS5.5 Master Collection, I tried to upgrade to OSX Yosemite. After downloaded Yosemite install package on the web as it is unavailable on Apple’s support site any more.

There was error after verifying the system when running the Yosemite installer suggesting contact AppleCare.


Directly upgrade to OSX 10.12 Sierra. There is some little problem with Photoshop. Need to install JavaSE again as instructed by Photoshop after upgrade.


  • It is good practice to backup the old OS with Time Machine for Mac even though in my case, there is no need to restore to original OS version.
  • If upgrading to Sierra has potential application incompatibility issue with new OS, I think there still may be some with Yosemite or El Capitan, why not give Sierra a try as it is 10.12.1 not the xx.xx.0 version.


  • OSX 10.9.5 -> OSX 10.12.1
  • Photoshop  12.1