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I deleted all partitions on the MacBook's HD and installed Ubuntu.
Now I want to reinstall MacOS but nothing will work.

Holding option on startup shows the grey screen with the pointer but no removable media or HD partitions show up to boot from.

Holding commandR at startup for recovery mode will just boot regularly into ubuntu.

Holding optioncommandR at startup for internet recovery will boot on Grub, Ubuntu's boot loader.

How can I reinstall MacOS in this situation?
Is there any other kind of low-level reset or something else that will let me boot from a DVD or USB device?
Is there a way to access something like the setup you get to by holding F2 on regular PCs?

  • Thanks for the help @user3439894, I used google, I saw all the pages you cited and more, do have another mac, did create bootable installers, did try to use the original install DVDs. If you read my question you'll see that the start up manager won't show any partition or drive to boot from, and none of the recovery startup methods work, so that's why I'm asking here. – Petruza Sep 19 '17 at 20:25
  • Late 2009 Macbook. support.apple.com/kb/sp579 – Petruza Sep 19 '17 at 22:15
  • Also, there are no Apple stores in my city, there are Apple repair services but as this is an old computer, I wouldn't spend a dime on it, I'm just trying to make it into a usable backup machine. – Petruza Sep 19 '17 at 22:17
  • @user3439894 yes it does, I've used it already. – Petruza Sep 20 '17 at 3:06
  • You said you have Late 2009 Macbook and according to Computers that can be upgraded to use OS X Internet Recovery the MacBook 13-inch, Mid 2010 is oldest to support it with a firmware update, but if you have then use it! – user3439894 Sep 20 '17 at 3:21

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