Apple has released Mac OS X Lion in the Mac App Store for $30. Separately, Apple will also begin offering Lion on a USB thumb drive in Apple stores come August. Right now, you can grab Lion from the ...

Like Lion (OS X 10.7) before it, Mountain Lion (OS X 10.8) doesn’t ship on a disc—it’s available only as an installer app downloadable from the Mac App Store ...

Bootable disc image files may contain all the data necessary to create a disc from which computers can boot, but if you want them to work, you can't just burn them to a disc the way you would regular ...

Happy Mountain Lion Day! Now that you have downloaded the 4.34GB installer, you may want to install Mountain Lion on more than one of your personal machines. Do you really need to wait 45 minutes or ...

[Editor’s note: This article is part of our series of articles on installing and upgrading to Lion (OS X 10.7). We also have a complete guide to installing and upgrading to Mountain Lion (OS X 10.8).] ...

Having a secondary boot volume is almost a necessity for troubleshooting some problems with Macs. Here are some options for creating boot disks. Topher, an avid Mac user for the past 15 years, has ...

In last month's column, I described the hurdles that Mac OS X puts in your way when you try to create a bootable disc, especially a custom bootable CD, DVD or flash drive. I offered various solutions ...

Sometimes you may run into a situation where your system fails to respond correctly. Under such circumstances, you may find booting into another OS as your best option. Sometimes, troubleshooting PC ...

Trying to burn to a single layer DVD which has 4,707,319,808 bytes available and the .dmg image uses 4,348,218,934 bytes yet Disk Utility insists "The disc inserted does not have enough free space." I ...