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My problem is that I install Ubuntu 13.04 on my iMac , but when I restart my computer a screen asks me to choice between OSX or Ubuntu.

The problem is I can't use the keyboard to choose OSX, so I can't log to my mac. I hope you help me to find a solution to this problem

Note: 10 seconds after the appearance of the screen, it automatically selects Ubuntu and the keyboard works fine inside Ubuntu

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up vote 1 down vote accepted

I'm not 100% sure but you cannot use a bluetooth keyboard at the GRUB boot menu. This is due to the fact that the drivers haven't been loaded.

You would have to use a USB keyboard to change what OS you wanted to boot into.

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do you think there is no way to fix this problem excebt by using usb keyboard ?? :( – mahmoud yousif Jun 19 '13 at 22:49
I am afraid not. – BiggJJ Jun 19 '13 at 22:52
ok thank you .. ihope if someone else have another solution – mahmoud yousif Jun 19 '13 at 22:54
@mahmoudyousif If your BIOS doesn't have an option for enabling bluetooth before boot then it is impossible to use a bluetooth keyboard to configure GRUB. You will need to use a USB/PSK/2 keyboard. – Seth Jun 19 '13 at 22:59
((BIOS)) ??????? – mahmoud yousif Jun 19 '13 at 23:01

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