- HOW TO INSTALL MAC OS ON OLD MAC NEW HARD DRIVE INSTALL
- HOW TO INSTALL MAC OS ON OLD MAC NEW HARD DRIVE UPGRADE
- HOW TO INSTALL MAC OS ON OLD MAC NEW HARD DRIVE FULL
- HOW TO INSTALL MAC OS ON OLD MAC NEW HARD DRIVE FREE
- HOW TO INSTALL MAC OS ON OLD MAC NEW HARD DRIVE MAC
HOW TO INSTALL MAC OS ON OLD MAC NEW HARD DRIVE FREE
Since Apple only requires you to have a little over 8 GB of free space, any hard drive, even one with 128 GB, will do just fine. However, to begin with, this, you will need an external hard drive. It will even let you use the same hard drive with multiple Macs, without updating to Sierra on each of those.
HOW TO INSTALL MAC OS ON OLD MAC NEW HARD DRIVE INSTALL
There is no doubt about the fact that you will save a lot of trouble and hassle if you install the macOS Sierra on an external drive.
HOW TO INSTALL MAC OS ON OLD MAC NEW HARD DRIVE MAC
You can simply go ahead and install the macOS Sierra on an external hard drive, and then boot your Mac from that! The Prerequisites However, there is a solution to all of that. For those who have a lot of data on their Macs, this can be a very lengthy procedure. You also have to back up the entire system before installing macOS Sierra, which is a must-do step in any update. In addition to that, if you are using an older Mac, then you will still face a few issues while running Sierra. While that is the minimum recommended by Apple, you will probably need a bit more to make use of it. However, even if your Mac does support Sierra, there may be a few reasons as to why you may not be able to install it on your hard disk.įor starters, it takes around 8GB of storage space. If you have a Mac, then you probably cannot wait to get your hands on the Sierra - provided your system supports it. Apple also offers Shift-Command-Option-R, which installs the version of OS X or macOS with which your computer shipped, or the next oldest compatible system still available for download.The macOS Sierra is a wonderful operating system - and easily the best for all Apple computers and laptops. While Command-R at startup always installs whatever the most recent version you installed on your Mac, holding down Command-Option-R brings down the very latest compatible version that can be installed. However, if you have normal Recovery installed and it refuses to install macOS for some reason, you can manually invoke Internet Recovery.
HOW TO INSTALL MAC OS ON OLD MAC NEW HARD DRIVE FULL
There, the Mac reaches out over a Wi-Fi or ethernet connection to download the relatively modest Recovery software, which then bootstraps the download of the full macOS installer.Īpple says Internet-based Recovery should happen automatically on supported models, and you should see a spinning globe when that mode is invoked while the download occurs.
HOW TO INSTALL MAC OS ON OLD MAC NEW HARD DRIVE UPGRADE
However, there’s yet another option: macOS Recovery over the Internet, which requires either a Mac model released in 2012 or later, or most 20 models with a firmware upgrade applied. When complete, it installs it and reboots, and places the installer in the Applications folder. (Apple doesn’t document that, and I haven’t had to test that for years.)įailing finding it, Recovery downloads the currently installed version of macOS (or OS X), which is about 5GB. In that mode, when you choose to reinstall without erasing the drive, my recollection is that Recovery looks for the current OS system installer on your startup disk in the Applications folder, and uses that. That allows you to run Disk Utility, reinstall or wipe and install the system, access Terminal for command-line functions, and so on. Normally, you can start up a Mac while holding down Command-R to boot into what Apple now calls macOS Recovery. The article includes instructions on obtaining the installer, which might involve you having to use someone’s else Mac to download it, if you don’t have a replacement Mac on hand yet.īut if you can’t get access to another Mac or the necessary drive, it’s still possible to use a different Recovery mode on all recent Macs, dating back to 2010. We have instructions for making a bootable installer with macOS Sierra (as well as archived versions for several previous releases). Recovery lets you install onto an erased partition, but only if Recovery wasn’t erased, too!īecause Recovery didn’t work, the fastest way to install fresh is to make or borrow a macOS installer on a USB flash drive or a disk drive. There are a couple of options with an erased partition. My friend was wiping my Mac so I could sell it and I’m pretty sure they’ve deleted the start up disk? It’s not letting me reinstall the OS on a recovery startup.
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