

- #HOW MAKE BOOTABLE USB FOR MAC OS X LION INSTALL#
- #HOW MAKE BOOTABLE USB FOR MAC OS X LION UPDATE#
- #HOW MAKE BOOTABLE USB FOR MAC OS X LION LICENSE#
Get the latest version of the Mountain Lion installerīefore you make a bootable install drive, you should make sure you have the latest version of the Mountain Lion installer.

If you don’t, you’ll have to re-download the installer from the Mac App Store before you can create a bootable install drive.) So if you plan to use that installer on other Macs, or-in this case-to create a bootable drive, be sure to copy the installer to another drive, or at least move it out of the Applications folder, before you install.

(Note: As explained in our main Mountain Lion-installation article, if you leave the Mountain Lion installer in its default location in the Applications folder when you install OS X 10.8, the installer will be deleted automatically after the installation finishes. That said, if, for whatever reason, you absolutely need to create a bootable install DVD, follow steps 1 through 5 under “ Using Disk Utility,” below, but from Step 6 on, follow the instructions under “To create a bootable DVD” in our article on making a bootable Lion-install drive.
#HOW MAKE BOOTABLE USB FOR MAC OS X LION UPDATE#
In addition, you can easily update a USB stick or external hard drive each time an update to Mac OS X is released, as explained below with a DVD, you have to toss the disc in the trash and start over, which is both a hassle and bad for the environment. More and more Macs ship without a built-in optical drive booting and installing from a DVD is very slow and 8GB flash drives can be found for $10 or less-there’s little reason to opt for a DVD anymore. Though it’s possible to make one, I don’t recommend it these days. You may have noticed that I didn’t mention making a bootable install DVD. Thankfully, it’s easy to create a bootable install drive from the Mountain Lion installer that you download from the Mac App Store.
#HOW MAKE BOOTABLE USB FOR MAC OS X LION LICENSE#
Also, if you need to reinstall Mountain Lion, recovery mode requires you to download the entire 4GB+ installer again.) Finally, if you need to install Mountain Lion over Leopard-assuming you have the license to do so-a bootable install drive makes it easier to do so. (Mountain Lion’s OS X Recovery feature, known as Lion Recovery prior to Mountain Lion’s release, is a big help here, but not all Macs get it-and if your Mac’s drive is itself having trouble, recovery mode may not even be available. Also, if your Mac is experiencing problems, a bootable install drive makes a handy emergency disk. But there are a good number of reasons you might want a bootable Mountain Lion installer on an external hard drive or a thumb drive (USB stick).įor example, if you want to install Mountain Lion on multiple Macs, a bootable install drive can be more convenient than downloading or copying the entire Mountain Lion installer to each computer. 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, and that installer doesn’t require a bootable installation disc.
