refers to formatting, or erasing a disk, deleting all data on the disk

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30
votes
3answers
16k views

What are the differences between journaling HFS+ and non-journaling HFS+?

I'm about to format an external hard disk drive (HDD). What are the key differences between journaling HFS+ and non-journaling HFS+? Apart from the fact that one has journaling and the other does ...
2
votes
3answers
12k views

How to nuke everything from imac and start it at the beginning from scratch like i first bought it

I have some problems that i cannot resolve on my iMac and now I would like to delete everything and start it from scratch like when i first bought it a few years ago. Please show me the steps. ...
10
votes
5answers
44k views

How do I make a bootable USB flash drive a Mac?

Does anyone have a Terminal command-line recipe for making a new bootable USB flash drive for one of the new MacBook Air's? Is there a way to dd copy the USB boot device that comes in the box and ...
6
votes
1answer
7k views

How to format the OS X installer USB stick that comes with MacBook Air?

When you purchase a new MacBook Air they give you a mini-USB drive that is used to reinstall OS X and iLife '11. How can I format this USB stick and put whatever I want on it? The option to format ...