What to do when OS X Recovery Mode lets you down

Things go wrong. Don't panic

Despite our undeserved reputation of complacency, every Mac user knows that sometimes things go wrong. When they do we can usually boot up Disk Recovery mode to try to deal with it. In this short guide I’ll tell you how to do that and share three other ways to save your Mac life.

Recovery Mode

When things go wrong try Recovery Mode. All you need to do to access this is Restart your Mac and hold Command-R when you hear the startup sound. You can release these keys once the Apple symbol and grey progress bar appear on your display.

But what can you do if this doesn’t work?

Time Machine

You keep backups don’t you? You really should. If you do have a connected external drive with a Time Machine backup then you can use Recovery Mode from the backup. This may sometimes be the only way to get to fix (or at least rescue data) from your Mac, particularly when you can’t get it online or its drive has become damaged.

This is how to use your Time Machine backup to access Recovery Mode:

  • Restart your Mac
  • Hold Option when the startup chime sounds
  • Now attach your Time Machine drive
  • Wait a few moments and the now connected Time Machine drive should appear (you may need a password).
  • You should now be able to choose the Recovery Drive to launch your Mac.

Third party solutions

Backup software Carbon Copy Cloner and SuperDuper are both great tools for creating Mac backups. Among other things they can create a complete copy (Disk Image) of your Mac, restore that image once you’ve repaired your Mac, and let you startup from the external drive the backups are stored on.

(For an idea of what these applications can do, read this excellent article which remains relevant to OS X El Capitan).

Go online

If you can get your Mac online you can try Internet Recovery, though this requires you to download a hefty chunk of data and takes time. The sequence is similar to the way you usually access Recovery, with the addition of the Option key.

Restart your Mac and hold Option-Command-R when the start up chime chimes. Keep those keys depressed until you see a globe symbol and progress bar appear. Don’t stay there for hours, if this doesn’t happen within a few minutes it’s reasonable to assume it won’t work.

A bootable drive

Every Mac user should invest in a high-capacity USB 3.0 flash drive. On that drive they should create a bootable OS X installer drive for OS X. And put the drive in a draw while hoping they don’t need to see it again until they need to add another OS X installer version to that drive.

Making it is a complex process – take it slowly and follow these clear instructions – however, it doing so is well worth the effort. See it as an insurance policy as you can use this installer to startup and repair (or at least rescue data) from a sick Mac. Once you have your bootable drive follow these steps:

Restart the Mac and hold Option once the chime sings; now attach your bootable installer drive to the Mac and select it from the list (if you see a list) that appears. Now your Mac will launch and you can try to fix your Mac.

Backup today

Please tell me you backup your Mac regularly. If you don’t, then please begin. I’ve had to tell too many of my friends that all their precious images have been destroyed, or that only a limited number can be recovered using DiskWarrior, Data Rescue or Disk Drill.

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Copyright © 2015 IDG Communications, Inc.

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