Making an ISO image of a hard drive means creating a 1-to-1 backup copy that consists of a .iso file. Here are two ways to do just that.

Though you can install Mountain Lion directly from your Mac's hard drive, a bootable installer drive can be more convenient for installing the OS onto multiple Macs. And if your Mac is ...

How to Make a Bootable Thumb Drive That Runs XP. Windows XP takes up relatively little space on a hard drive and uses fewer system resources than recent versions of Windows.

One of the convenient features in early versions of Windows (yes, Windows) was the ability to easily create an MS-DOS boot disk out of any floppy disk, which could then be used to troubleshoot ...

If you're trying to install a new operating system or flash your BIOS, you're going to need a bootable USB drive - here's how to make one.

AOMEI PE Builder lets you create a complete WinPE-based bootable USB, CD, DVD media or environment, based on Windows PE, without installing AIK/WAIK.

I don't know what Fedora version you mean exactly, but up to Fedora 1, you could use "/sbin/mkbootdisk", as root, to create a booting floppy disk.

How to create a bootable, backup Mountain Lion install disk Need to install Mountain Lion on multiple Macs? Here's how to do it.