- MAC OS MOUNTAIN LION USB BOOT MAC OS X
- MAC OS MOUNTAIN LION USB BOOT INSTALL
- MAC OS MOUNTAIN LION USB BOOT UPDATE
- MAC OS MOUNTAIN LION USB BOOT DOWNLOAD
Now you wait while the Lion DMG is restored to the USB drive, this can take a while and you’ll see a screen like this:
MAC OS MOUNTAIN LION USB BOOT INSTALL
This is why we mounted the InstallESD.dmg file earlier, because we can just drag and drop the “Mac OS X Install ESD” image into the “Source” – if you didn’t mount the image, you can manually locate and select the image file yourself by clicking on “Image”ĭrag the formatted USB key to the “Destination” and check “Erase destination”īe sure you have the right things in the right places, you don’t want to format the wrong drive – then click on “Restore” Now you need to set the source disk for the restore.
Right-click on the USB drive in Disk Utility and select “Restore” Now that the USB flash drive has been formatted to the appropriate filesystem, we are going torestore the previously mounted InstallESD.dmg file to the blank USB drive. Select your USB drive from the left side of Disk Utility, then click on the “Erase” tabĬhoose “Mac OS Extended (Journaled)” as the Format, and name the USB key what you want Next, we format the USB flash drive, this will become the bootable Lion installer: Open the “Contents” directory and then go into “SharedSupport”ĭouble-click on “InstallESD.dmg” to mount the Lion disk image onto your Mac desktop, it will show up like the image below
MAC OS MOUNTAIN LION USB BOOT MAC OS X
Right-click (or control-click) on the “Install Mac OS X Lion.app” and select “Show Package Contents” If you have anything stored on the USB flash drive you’re going to lose it, so be prepared for that and back it up.įirst we are going to locate the Lion InstallESD.dmg file and mount it: We’re going to assume you already have Mac OS X Lion downloaded from the App Store, if you don’t, do that first.
MAC OS MOUNTAIN LION USB BOOT DOWNLOAD
This is pretty easy to do, but I have made the walk through as simple as possible with plenty of screenshots, so just follow along the instructions.Ī Mac with Mac OS X 10.6.8 so you can download and access Lionĭownload Mac OS X Lion from the Mac App Store
This is similar to the process of making a bootable Lion installer DVD, but I prefer a USB flash drive because it’s faster, smaller, and I have a Mac Book Air so an installation DVD isn’t too useful for me. I’m going to walk through the process of making a bootable Mac OS X 10.7 Lion installation drive out of any USB flash drive key. The application is programmed with AppleScript and can be used now with Mac OS X 10.6, 10.7 and OS X 10.8 to burn a DVD or build a bootable drive from Mac OS X Lion or OS X Mountain Lion Installation program.Make a Bootable mac USB Installer from a USB Flash Drive The Lion DiskMaker application has been updated to allow users to make a bootable USB or SD Card installer for the Mountain Lion. Having an independent bootable USB drive or SD Card also makes sense in case you want to install Mountain Lion on multiple computers without having to download it time and again.
MAC OS MOUNTAIN LION USB BOOT UPDATE
However, Apple's chosen method of distribution for the update has raised many eyebrows as it doesn't come with a USB or Optical Disk external installer.Īs Redmond Pie noted, since there's no physical installation source for the Mountain Lion, some users may face difficulties if anything goes wrong with their Mac while installing the update they may not even get access to the downloaded installer on their devices. The OS is currently available for download from the Mac App Store for $19.99. Apple finally released the latest version of its desktop operating system, "OS X 10.8 Mountain Lion," to millions of Mac users around the world Wednesday.
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