No install disk-how to boot disk utilities
I bought this new (2013) iMac which obviously has Mt. Lion on it. I want to know about how to deal with emergencies, etc.
How do I boot from an install disk to run disk utilities, fix or repair, when there is no install disk? Likewise, in the past Apple has had several items that could be installed optionally, like developer tools, quicktime 7, etc. But with no actual disc how do I do that?
Also, I bought Lion for my Mac Pro (2006) and MacBook Pro (2011). I installed that on both. Now I realize the MBP can take Mt Lion. Do I have to make a separate purchase for Mt. Lion for the MBP? (The Mac Pro, sadly, even though it was top of the line at the time, the 2006-2007 models cannot be upgraded to Mt. Lion, but I falsy assumed the MBOP had the same limitation. Now that I know it does not...
Apple tech support has been great for me of late. Some of my difficulties lie in that I am a very long time Mac user but halted at Snow Leopard. I just recently bought new iMac; new iPad Mini; and Lion for MBP; all of which hustle me fully into iCloud. It's hard to separate out which of these new things might be cause for clarification. So even when Apple customer support is very gratious and helpful, I continue to have multiple problems and it's just too much time on the phone given that I get shuttled from one department to another for each different issue.
iMac, OS X Mountain Lion (10.8.2)