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I installed ubuntu on my macbook air early 2014,but now I am unable to boot OSX after the installation of Ubuntu. I used a USB flash drive to install Ubuntu 15.10-amd64.ISO

When I press the 'power on' button,it boots to Ubuntu automatically But if I press and hold 'alt' after pressing the 'power on' button it shows the Macintosh HD icon , when I press enter it shoes the Apple logo and then it shows a cross circle symbol.

SaniyaM
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1 Answers1

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When you see a circle with a slash symbol instead of the Apple logo, it means your Mac couldn't find a valid System Folder to start up from.
If you're using your Mac at a school or business, it might be trying to start from the wrong version of OS X. Contact your IT department for more help.
If this is your personal Mac, try reinstalling OS X by using OS X Recovery.

https://support.apple.com/en-us/HT204156

LiveWireBT
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wagyourtail
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