This question already has an answer here:
When I start my iMac I get the apple logo and the swirling gear then it freezes in this position. I have tried
- Command-R during startup---it can't find recovery partition
- Press Shift during startup - nothing happens
- Press D during startup
- It cannot find a "bootable cache"
I have "heard" that Ubuntu can be used to at least start the Mac and maybe it will load programs from the mac to correct my startup problem
I need to know which version of Ubuntu I should use for a bootable DVD or USB stick and what kind of format does Ubuntu have to be in…. Ie. Iso, or what.