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Restore a Mac without a Recovery partition.

Try this fix to force the Recovery partition to appear.

Use Terminal to check if your Mac has a Recovery partition.

How to check if Recovery partition is working on Mac.

If your Mac runs macOS X Snow Leopard or earlier.

If your Mac is running macOS Sierra or earlier.

Did you accidentally delete the Recovery partition?.

Possible reasons why Command + R isn’t working on Mac.

So, if Mac Recovery Mode is not working and you can’t figure out why the usual Command ( ⌘) + R process has gone south, you’re at the right troubleshooting guide. While this official troubleshooter works well most of the time, it has had its fair share of issues. This will restore the OS X version your Mac came with.Īfter rebooting and configuring your Mac open App Store, download and install Mac OS X Mavericks (if an older OS X version was installed previously).Whether you’re trying to fix a stubborn problem, repair or erase a hard drive, or reinstall the latest macOS version, macOS recovery (launched in 2010 with OS X 10.7 Lion) is the way to go. Open Restore OS X and restore the original OS X. Then retry to erase the disk with Disk Utility. Sometimes Disk Utility won't allow you to erase the internal disk: open Terminal and enter diskutil umountDisk /dev/disk0 and dd if=/dev/zero of=/dev/disk0 bs=512 count=1.

Open Disk Utility and partition your internal disk: GUID partition scheme (use the "Options." button at the bottom of the main pane for this), one partition, journaled HFS+. On a 50 Mbps-line it takes about 4 min (presenting a small animated globe) to boot to the Recovery Netboot image which is loaded from an Apple/Akamai server. In a few words you need the latest firmware update installed, either ethernet or WLAN (WPA/WPA2) and a router with DHCP activated for a successful internet recovery. The prerequisites for an Internet Recovery are listed here: Recovery/Internet Recovery. You can restore OS X in Internet Recovery Mode if you have a newer Mac:īoot to Internet Recovery Mode by pressing alt cmd R.