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Can anyone help me restore the original boot 'order' on my Mac, using command-line?

I wanted to install Ubuntu on my Macbook Pro Retina (early 2013), so I could run some specific software I needed for my work. I followed the instructions from this site: http://www.makeuseof.com/tag/install-linux-macbook-pro/

I managed to install Ubuntu on a small partition on my HD, and then I performed 'efiboot fix', as suggested, so I could boot Ubuntu after restarting my Mac. I ran the following commands in Ubuntu: 

sudo apt-get install efibootmgr
sudo efibootmgr
sudo efibootmgr -o 0,80

Then I restarted my Mac, but neither Ubuntu nor OS X could boot normally. Basically, I got a blank screen. I restarted again, holding the alt key, and then I was able to choose to boot OS X.

Can I revert the boot order somehow, using Terminal commands in OS X? Really don't feel like experimenting again with Ubuntu. And can I remove this disk partition with Ubuntu now? I tried to do it through Disk Utility, but it's not possible. Any help will be greatly appreciated.

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  • Please issue the command sudo efibootmgr and past the output to the question.
    – Allan
    Mar 7, 2016 at 0:29
  • If you prefer, I could post how to boot Ubuntu by holding down the alt/option key at startup.
    – David Anderson
    Mar 7, 2016 at 1:10

1 Answer 1

Reset to default
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Since you can boot into OS X by holding down the Option key and selecting your OS X partition, you just need to set the Startup Partition in System Preferences.

How do I set OS X to boot by default?

This will be persistent across reboots.

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  • Thanks @Allan. However, recently my computer crashed, and I had to use internet recovery to install new OS. The new OS was installed on a smaller partition of my SDD, and the main partition (macintosh HD, now disk0s2) was not available. Later, in Disk Utility, I saw that it was 'not mounted'. Do you have any advice on how to fix this, to mount this partition? If not, can I at least recover some files?
    – Denis-FR
    Apr 6, 2016 at 19:17

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