Today I decided after 6 years to format my MacBook Pro 2009 laptop. Originally I had Snow Leopard on it (I still have an unscratched cd) but in some point back in 2012 a friend installed (using his appledId) the Mountain Lion.
I've been messing around with this the whole day and have tried a bunch of different things and now I think I am in the worst possible situation.
In the beginning I restarted the mac and pressed as described online the cmd+R combination. I formated my disk and then tried to reinstall the osx.
The dialog box was saying Mountain Lion and it was asking for an appleId. Obviously my appledId wouldn't work cause I never purchased it.
Then I thought to use my Snow Leopard cd and boot from there (holding the option key). I tried several times but for some reason the mac dvd player keeps rejecting my cd. This is what I call bad luck.
So after some hours, working on my second laptop I decide to do something crazy. Install Ubuntu through a live usb memory stick. I create one, plug it in the mac and make the whole installation. That was completely stupid of me. I had problems with the graphic card and things were not displayed correctly.
I remove the Ubuntu using gParted and now I am in the point where I start the mac and I get a blinking folder with a questiomark in the middle.
I have no idea what to do. When I click the options button, I get nothing. Not even the harddrive. When I place the cd of SnowLeopard I also get nothing and after a while the cd is rejected.
So what am I supposed to do now? Any help would be mostly appreciated!