My actions were actually a practice run to re-image 30 Late model 2015 iMacs (specs seen below). The system on unit 2 runs, but seems to be a bit sluggish. I cloned an image from unit 1 (specs seen below) via Time-Machine and re-imaged unit 2 (specs seen below) using the clone from unit 1. Click on the “Restore” and “Erase” button. Drag the first “Macintosh HD” into the “Destination” box. Double-click on the bottom “Macintosh HD”. Double-click on your dmg and click “Skip”. Click on the “Image” button and choose your dmg file.
Choose your hard drive on the left-hand side. Plug in your external hard drive to your computer that contains the dmg file. Hold down the Option key during the restart of your computer. Plug in your external hard drive and upload the dmg into it. Name your dmg file and save it to your desktop. Open your Disk Utility application and click on the “New Image” icon. Imaging your computer is also a great way to back-up your important data.Īll this could not have been done with the help of Jacob in the IT department. The hard drive I cloned, or imaged, included the specific applications I wanted my students to use, specific OS settings, and numerous Chrome extensions that block inappropriate ads on the browser. This process involved the cloning of a computer hard drive that I customized and reinstalling it to the rest of the computers. I wanted to start the school year with a new clean slate by re-imaging my computers in the lab.
