Get cd out with power of

Question

When I started the puter today. The black screen with the text:
No bootable device found. Please insert a bootable disc and press any key to continue.
I have never touched any other OS on this macbook. Never even opened boot menu.
So I tried to restart the puter but the same thing happened. Now this is when I should have come here but I just had to try something first (I'm so stupid!). I had a Linux Mint CD that I inserted and restarted. Mint booted as planned ecxept that the desktop never appeard. So now I got a Linux Mint CD in my mac that doesn't work and it's booted automaticly.
I have tried to press the eject button while booting up which useally works didn't. I've tried to open boot menu while booting up by holding in alt. Did not work. Now what the **** am I going to do? Is there a way (maybe some sort of a panic button) to eject the cd with the power of? And if I succsesfully eject the cd I would still have the problem that Leopard won't boot.
Please help me.
Sorry about my language. My English isn't that gr8 and I'm not used to this keyboard.

Answer 1

To get the disk out, hold down the mouse/trackpad button while turning the computer on.
As for why the computer thinks there's no bootable medium available, there's two possible reasons: either the hard drive has become corrupted and has managed to forget it's bootable, or the firmware has forgotten to load the drivers/check the internal SATA bus for bootable items.
I had the problem with the firmware about 6 month ago; the computer would sit there for about 5 minutes with a grey screen before telling me there was no bootable media available, while there patently was. I managed to fix this by booting the computer from the original restore disk that shipped with the computer, and from the 'utilities' menu, selecting 'set firmware password' setting a password for it, then rebooting and holding down 'option', (it should ask for the password you just set) then rebooting from the restore disk again, and removing the password (by selection the same option again and just leaving the password fields blank). I can't guarantee this will fix any firmware problem, but it seemed to work in my case.
If it's a problem with the hard drive itself, then you will be able to tell when booted from the restore disk. From the 'utilities' menu select 'startup disk' and if the internal hard drive is listed there, try selecting it and choosing 'reboot'. If it proceeds to boot up normally from the internal hard drive, problem sorted. if the hard drive appears there but the computer can't reboot from it in this way, it could still either be a problem with the hard drive or the firmware. Try running disk utility from the utilities menu and running 'repair permissions' and 'repair disk' on the hard drive, and see if this makes a difference. If you have a time machine backup, try restoring from that. If none of this works, back up all your data and do a clean install of OSX (backup of data could be achieved in several ways even if the computer won't boot: if your mac has firewire you can boot it in target disk mode by holding down 't' while turning it on, and connecting it to another mac or you could physically remove the hard drive and connect it to another computer with usb/firewire/esata to copy data across).
If none of these work, then I'd suggest that the firmware has a different problem to mine, in which case I'm afraid I can't help you...