How do I install IOS on an old imac?

How do I install IOS on an old imac?

Here are the steps Apple describes:

1. Start up your Mac pressing Shift-Option/Alt-Command-R.
2. Once you see the macOS Utilities screen choose the Reinstall macOS option.
3. Click Continue and follow the on-screen instructions.
4. Select your startup disk and click Install.
5. Your Mac will restart once the installation is complete.

What other OS can be installed on Mac?

Now that you’ve covered your back, let’s take a look at the operating systems you can use on your MacBook or other Apple computer.

• Windows 10. Surprisingly, the best alternative operating system on Macs is the one Apple fans love to hate: Windows.
• Ubuntu 15.10.
• Linux Mint 17 Cinnamon.
• Elementary OS.
• Puppy Linux.

Can Rufus create an ISO?

All versions of Rufus since v1.1.0 allow the creation of a bootable USB from an ISO image (.iso). Creating an ISO image from a physical disc or from a set of files is very easy to do however, through the use of a CD burning application, such as the freely available InfraRecorder or CDBurnerXP.

Where can I find an ISO file on my Mac?

Right-click (or Control +click) the installer, and choose Show Package Contents from the resulting contextual menu. In the folder that appears, open Contents > Shared Support; you’ll see a disk image file called InstallESD.dmg This dmg file is in essence an ISO file in s slightly different format.

How do you create a disk image on a Mac?

Disk Utility creates the disk image file where you saved it in the Finder and mounts its disk icon on your desktop and in the Finder sidebar. In the Finder, copy your files to the mounted disk image, then eject it. Restore the disk image to a disk.

How do I install OS X on an external drive?

Insert an external drive, launch the OS X Recovery Disk Assistant, select the drive where you would like to install, and follow the on screen instructions. When the OS X Recovery Disk Assistant completes, the new partition will not be visible in the Finder or Disk Utility.

How to create an external OS X recovery disk?

To create an external OS X Recovery, download the OS X Recovery Disk Assistant application. Insert an external drive, launch the OS X Recovery Disk Assistant, select the drive where you would like to install, and follow the on screen instructions.